├── .gitignore ├── modules ├── aro-permissions │ ├── .gitignore │ ├── 00-terraform.tf │ ├── examples │ │ ├── cli │ │ │ └── main.tf │ │ └── api │ │ │ ├── main.tf │ │ │ └── terraform-example │ │ │ └── main.tf │ ├── 02-resource_groups.tf │ ├── 90-outputs.tf │ ├── Makefile │ ├── 20-identities.tf │ ├── 10-roles.tf │ ├── 01-variables.tf │ └── 30-permissions.tf └── aro-managed-identity-permissions │ ├── 00-terraform.tf │ ├── 02-resource_groups.tf │ ├── 90-outputs.tf │ ├── 01-variables.tf │ ├── 20-identities.tf │ ├── script.sh │ └── README.md ├── test ├── main.tf ├── pr.sh └── test.sh ├── terraform.tfvars.example ├── 03-data.tf ├── 00-terraform.tf ├── 02-locals.tf ├── .cursorrules ├── 90-outputs.tf ├── 40-acr.tf ├── .github └── workflows │ └── pr.yml ├── 30-jumphost.tf ├── 10-network.tf ├── 20-iam.tf ├── scripts └── destroy-managed-identity.sh ├── 11-egress.tf ├── 50-cluster.tf ├── PLAN.md ├── CHANGELOG.md ├── 01-variables.tf ├── templates └── aro-cluster-managed-identity.json ├── DESIGN.md ├── LICENSE.txt ├── Makefile └── README.md /.gitignore: -------------------------------------------------------------------------------- 1 | **.tfstate* 2 | /*.json 3 | .terraform* 4 | *.plan 5 | terraform.tfvars 6 | sshuttle.pid 7 | .history -------------------------------------------------------------------------------- /modules/aro-permissions/.gitignore: -------------------------------------------------------------------------------- 1 | **/*.tfstate 2 | **/*.backup 3 | **/*.terraform 4 | **/*.terraform.lock.hcl 5 | .terraform 6 | .tfstate 7 | .tfstate.backup 8 | main.plan 9 | .terraform.tfstate.lock.info 10 | *.txt -------------------------------------------------------------------------------- /test/main.tf: -------------------------------------------------------------------------------- 1 | variable "subscription_id" {} 2 | 3 | module "test" { 4 | source = "../" 5 | 6 | subscription_id = var.subscription_id 7 | cluster_name = "test-cluster" 8 | domain = "example.com" 9 | } 10 | -------------------------------------------------------------------------------- /terraform.tfvars.example: -------------------------------------------------------------------------------- 1 | pull_secret_path = "~/Downloads/pull-secret.txt" 2 | location = "eastus" 3 | subscription_id = "TO_BE_FILLED" ## also "export TF_VAR_subscription_id=xxx" can be used 4 | domain = "example.com" ## required by the backend terraform provider -------------------------------------------------------------------------------- /modules/aro-managed-identity-permissions/00-terraform.tf: -------------------------------------------------------------------------------- 1 | terraform { 2 | required_providers { 3 | azuread = { 4 | source = "hashicorp/azuread" 5 | version = "~>2.53" 6 | } 7 | 8 | azurerm = { 9 | source = "hashicorp/azurerm" 10 | version = "~>4.21.1" 11 | } 12 | } 13 | } 14 | 15 | # 16 | # provider configuration - providers are passed from caller 17 | # 18 | data "azurerm_client_config" "current" {} 19 | -------------------------------------------------------------------------------- /modules/aro-permissions/00-terraform.tf: -------------------------------------------------------------------------------- 1 | terraform { 2 | required_providers { 3 | azuread = { 4 | source = "hashicorp/azuread" 5 | version = "~>2.53" 6 | } 7 | 8 | azurerm = { 9 | source = "hashicorp/azurerm" 10 | version = "~>4.21.1" 11 | } 12 | } 13 | } 14 | 15 | # 16 | # provider configuration - providers are inherited from caller (modern approach) 17 | # This allows the module to use count/for_each on module calls 18 | # 19 | data "azuread_client_config" "current" {} 20 | 21 | data "azurerm_client_config" "current" {} 22 | -------------------------------------------------------------------------------- /modules/aro-permissions/examples/cli/main.tf: -------------------------------------------------------------------------------- 1 | data "azurerm_client_config" "current" {} 2 | 3 | provider "azurerm" { 4 | features {} 5 | } 6 | 7 | module "example" { 8 | source = "../../" 9 | 10 | cluster_name = "example" 11 | vnet = "example-aro-vnet-eastus" 12 | aro_resource_group = { 13 | name = "example-vnet-rg" 14 | create = false 15 | } 16 | 17 | # use custom roles with minimal permissions 18 | minimal_network_role = "dscott-test" 19 | minimal_aro_role = "dscott-test-aro" 20 | 21 | # explicitly set subscription id and tenant id 22 | subscription_id = data.azurerm_client_config.current.subscription_id 23 | tenant_id = data.azurerm_client_config.current.tenant_id 24 | } 25 | -------------------------------------------------------------------------------- /03-data.tf: -------------------------------------------------------------------------------- 1 | # Data Sources 2 | # 3 | # External data sources used to fetch dynamic values 4 | 5 | # Get the latest available ARO version for the specified location 6 | # This is only executed when aro_version variable is not provided (null or empty) 7 | # Using count to conditionally create this data source 8 | data "external" "aro_latest_version" { 9 | count = var.aro_version == null || var.aro_version == "" ? 1 : 0 10 | 11 | program = ["bash", "-c", <<-EOT 12 | # Get the latest version using JMESPath query to select last array element 13 | latest=$(az aro get-versions -l "${var.location}" --query '[-1]' --output tsv 2>/dev/null) 14 | 15 | # Use default if latest is empty (fallback if command fails) 16 | if [ -z "$latest" ]; then 17 | latest="4.16.30" 18 | fi 19 | 20 | # Output as JSON for external data source 21 | echo "{\"version\": \"$latest\"}" 22 | EOT 23 | ] 24 | } 25 | -------------------------------------------------------------------------------- /modules/aro-permissions/02-resource_groups.tf: -------------------------------------------------------------------------------- 1 | # NOTE: create the resource group if it is requested. this assumes vnet is in the same location as this resource group. 2 | resource "azurerm_resource_group" "aro" { 3 | count = var.aro_resource_group.create ? 1 : 0 4 | 5 | name = var.aro_resource_group.name 6 | location = var.location 7 | } 8 | 9 | locals { 10 | aro_resource_group_name = var.aro_resource_group.create ? azurerm_resource_group.aro[0].name : var.aro_resource_group.name 11 | aro_resource_group_id = var.aro_resource_group.create ? azurerm_resource_group.aro[0].id : "/subscriptions/${var.subscription_id}/resourceGroups/${var.aro_resource_group.name}" 12 | network_resource_group_name = (var.vnet_resource_group == null || var.vnet_resource_group == "") ? var.aro_resource_group.name : var.vnet_resource_group 13 | network_resource_group_id = "/subscriptions/${var.subscription_id}/resourceGroups/${local.network_resource_group_name}" 14 | } 15 | -------------------------------------------------------------------------------- /modules/aro-managed-identity-permissions/02-resource_groups.tf: -------------------------------------------------------------------------------- 1 | # NOTE: create the resource group if it is requested. this assumes vnet is in the same location as this resource group. 2 | resource "azurerm_resource_group" "aro" { 3 | count = var.aro_resource_group.create ? 1 : 0 4 | 5 | name = var.aro_resource_group.name 6 | location = var.location 7 | } 8 | 9 | locals { 10 | aro_resource_group_name = var.aro_resource_group.create ? azurerm_resource_group.aro[0].name : var.aro_resource_group.name 11 | aro_resource_group_id = var.aro_resource_group.create ? azurerm_resource_group.aro[0].id : "/subscriptions/${var.subscription_id}/resourceGroups/${var.aro_resource_group.name}" 12 | network_resource_group_name = (var.vnet_resource_group == null || var.vnet_resource_group == "") ? var.aro_resource_group.name : var.vnet_resource_group 13 | network_resource_group_id = "/subscriptions/${var.subscription_id}/resourceGroups/${local.network_resource_group_name}" 14 | } 15 | -------------------------------------------------------------------------------- /modules/aro-permissions/examples/api/main.tf: -------------------------------------------------------------------------------- 1 | data "azurerm_client_config" "current" {} 2 | 3 | provider "azurerm" { 4 | features {} 5 | } 6 | 7 | module "example" { 8 | source = "../../" 9 | 10 | installation_type = "api" 11 | 12 | # cluster parameters 13 | cluster_name = "dscott-api" 14 | vnet = "dscott-api-aro-vnet-eastus" 15 | vnet_resource_group = "dscott-api-vnet-rg" 16 | #network_security_group = "dscott-api-nsg" 17 | aro_resource_group = { 18 | name = "dscott-api-rg" 19 | create = true 20 | } 21 | 22 | 23 | # service principals 24 | cluster_service_principal = { 25 | name = "dscott-api-custom-cluster" 26 | create = true 27 | } 28 | 29 | installer_service_principal = { 30 | name = "dscott-api-custom-installer" 31 | create = true 32 | } 33 | 34 | # use custom roles with minimal permissions 35 | minimal_network_role = "dscott-api-network" 36 | minimal_aro_role = "dscott-api-aro" 37 | 38 | # explicitly set subscription id and tenant id 39 | subscription_id = data.azurerm_client_config.current.subscription_id 40 | tenant_id = data.azurerm_client_config.current.tenant_id 41 | } 42 | -------------------------------------------------------------------------------- /00-terraform.tf: -------------------------------------------------------------------------------- 1 | terraform { 2 | required_version = ">= 1.12" 3 | 4 | required_providers { 5 | azurerm = { 6 | source = "hashicorp/azurerm" 7 | version = "~>4.21.1" 8 | } 9 | external = { 10 | source = "hashicorp/external" 11 | version = "~>2.3" 12 | } 13 | random = { 14 | source = "hashicorp/random" 15 | version = "~>3.0" 16 | } 17 | time = { 18 | source = "hashicorp/time" 19 | version = "~>0.9" 20 | } 21 | } 22 | } 23 | 24 | provider "azurerm" { 25 | features {} 26 | subscription_id = var.subscription_id 27 | } 28 | 29 | # Installer provider - only needed for service principal deployments 30 | # For managed identity deployments, ARM template uses current Azure credentials 31 | # NOTE: Providers can't use count, so we always define it but only use it when enable_managed_identities = false 32 | provider "azurerm" { 33 | alias = "installer" 34 | client_id = try(terraform_data.installer_credentials[0].output["client_id"], "") 35 | client_secret = try(terraform_data.installer_credentials[0].output["client_secret"], "") 36 | subscription_id = data.azurerm_client_config.current.subscription_id 37 | tenant_id = data.azurerm_client_config.current.tenant_id 38 | 39 | features { 40 | resource_group { 41 | prevent_deletion_if_contains_resources = false 42 | } 43 | } 44 | } 45 | -------------------------------------------------------------------------------- /02-locals.tf: -------------------------------------------------------------------------------- 1 | # Local Values 2 | # 3 | # Local values used throughout the Terraform configuration 4 | 5 | # Domain for the ARO cluster - use provided domain or generate random one 6 | locals { 7 | domain = var.domain != null && var.domain != "" ? var.domain : random_string.domain.result 8 | } 9 | 10 | # Name prefix for all resources (uses cluster name) 11 | locals { 12 | name_prefix = var.cluster_name 13 | } 14 | 15 | # Pull secret - read from file if path provided, otherwise null 16 | locals { 17 | pull_secret = var.pull_secret_path != null && var.pull_secret_path != "" ? file(var.pull_secret_path) : null 18 | } 19 | 20 | # Service principal names for IAM module 21 | locals { 22 | installer_service_principal_name = "${var.cluster_name}-installer" 23 | cluster_service_principal_name = "${var.cluster_name}-cluster" 24 | } 25 | 26 | # ARO version - use provided version or auto-detect latest 27 | # Only runs external data source if aro_version is not provided 28 | locals { 29 | aro_version = var.aro_version != null && var.aro_version != "" ? var.aro_version : data.external.aro_latest_version[0].result.version 30 | } 31 | 32 | # Managed identity resource IDs (when enable_managed_identities = true) 33 | # These reference the managed identities created by the aro-managed-identity-permissions module 34 | locals { 35 | managed_identity_ids = var.enable_managed_identities ? module.aro_managed_identity_permissions[0].managed_identity_ids : {} 36 | managed_identity_principal_ids = var.enable_managed_identities ? module.aro_managed_identity_permissions[0].managed_identity_principal_ids : {} 37 | } 38 | -------------------------------------------------------------------------------- /test/pr.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | # Pre-commit checks (skips terraform plan) 3 | # This script does not require AWS credentials 4 | 5 | set -e 6 | 7 | echo "Running Terraform validate..." 8 | terraform validate || { echo "ERROR: Terraform validate failed" >&2; exit 1; } 9 | 10 | echo "Running Terraform fmt -check..." 11 | terraform fmt -check -recursive || { 12 | echo "ERROR: Terraform fmt -check failed. Run 'terraform fmt -recursive' to fix." >&2 13 | exit 1 14 | } 15 | 16 | if command -v tflint >/dev/null 2>&1; then 17 | echo "Running tflint..." 18 | tflint --init || true 19 | tflint || { echo "ERROR: tflint failed" >&2; exit 1; } 20 | else 21 | echo "⚠ tflint not found (optional - install with: brew install tflint)" 22 | fi 23 | 24 | if command -v checkov >/dev/null 2>&1; then 25 | CHECKOV_VERSION=$(checkov --version 2>/dev/null | grep -oE '[0-9]+\.[0-9]+\.[0-9]+' | head -1 || echo "unknown") 26 | EXPECTED_VERSION="3.2.495" 27 | if [ "$CHECKOV_VERSION" != "$EXPECTED_VERSION" ] && [ "$CHECKOV_VERSION" != "unknown" ]; then 28 | echo "⚠ Warning: checkov version $CHECKOV_VERSION detected, but CI uses $EXPECTED_VERSION" 29 | echo " Install with: pip install checkov==$EXPECTED_VERSION" 30 | fi 31 | echo "Running checkov security scan..." 32 | checkov -d . --framework terraform --quiet || { 33 | echo "ERROR: checkov security scan failed" >&2 34 | exit 1 35 | } 36 | else 37 | echo "⚠ checkov not found (optional - install with: pip install checkov==3.2.495)" 38 | fi 39 | 40 | echo "" 41 | echo "✓ All pre-commit checks passed! (plan skipped - use 'make test' for full test suite)" 42 | -------------------------------------------------------------------------------- /test/test.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | # Full test suite including terraform plan 3 | # This script requires AWS credentials and OCM token 4 | 5 | set -e 6 | 7 | echo "Running Terraform validate..." 8 | terraform validate || { echo "ERROR: Terraform validate failed" >&2; exit 1; } 9 | 10 | echo "Running Terraform fmt -check..." 11 | terraform fmt -check -recursive || { 12 | echo "ERROR: Terraform fmt -check failed. Run 'terraform fmt -recursive' to fix." >&2 13 | exit 1 14 | } 15 | 16 | if command -v tflint >/dev/null 2>&1; then 17 | echo "Running tflint..." 18 | tflint --init || true 19 | tflint || { echo "ERROR: tflint failed" >&2; exit 1; } 20 | else 21 | echo "⚠ tflint not found (optional - install with: brew install tflint)" 22 | fi 23 | 24 | if command -v checkov >/dev/null 2>&1; then 25 | CHECKOV_VERSION=$(checkov --version 2>/dev/null | grep -oE '[0-9]+\.[0-9]+\.[0-9]+' | head -1 || echo "unknown") 26 | EXPECTED_VERSION="3.2.495" 27 | if [ "$CHECKOV_VERSION" != "$EXPECTED_VERSION" ] && [ "$CHECKOV_VERSION" != "unknown" ]; then 28 | echo "⚠ Warning: checkov version $CHECKOV_VERSION detected, but CI uses $EXPECTED_VERSION" 29 | echo " Install with: pip install checkov==$EXPECTED_VERSION" 30 | fi 31 | echo "Running checkov security scan..." 32 | checkov -d . --framework terraform --quiet || { 33 | echo "ERROR: checkov security scan failed" >&2 34 | exit 1 35 | } 36 | else 37 | echo "⚠ checkov not found (optional - install with: pip install checkov==3.2.495)" 38 | fi 39 | 40 | echo "Running Terraform plan..." 41 | terraform plan -out=main.plan || { echo "ERROR: Terraform plan failed" >&2; exit 1; } 42 | 43 | echo "" 44 | echo "✓ All tests passed!" 45 | -------------------------------------------------------------------------------- /modules/aro-permissions/90-outputs.tf: -------------------------------------------------------------------------------- 1 | # 2 | # output created service principals and credentials to a file 3 | # 4 | resource "local_sensitive_file" "cluster_service_principal" { 5 | count = local.cluster_service_principal_create && var.output_as_file ? 1 : 0 6 | 7 | content = <<-EOT 8 | ARO_CLUSTER_SP_CLIENT_ID='${azuread_application.cluster[0].client_id}' 9 | ARO_CLUSTER_SP_CLIENT_SECRET='${azuread_application_password.cluster[0].value}' 10 | EOT 11 | filename = "./${var.cluster_name}_cluster-sp-credentials.txt" 12 | file_permission = "0600" 13 | } 14 | 15 | resource "local_sensitive_file" "installer_service_principal" { 16 | count = local.installer_user_set ? 0 : ((local.installer_service_principal_create && var.output_as_file) ? 1 : 0) 17 | 18 | content = <<-EOT 19 | ARO_INSTALLER_SP_CLIENT_ID='${azuread_application.installer[0].client_id}' 20 | ARO_INSTALLER_SP_CLIENT_SECRET='${azuread_application_password.installer[0].value}' 21 | ARO_TENANT_ID='${data.azuread_client_config.current.tenant_id}' 22 | EOT 23 | filename = "./${var.cluster_name}_installer-sp-credentials.txt" 24 | file_permission = "0600" 25 | } 26 | 27 | output "cluster_service_principal_app_id" { 28 | value = local.cluster_service_principal_app_id 29 | } 30 | 31 | output "cluster_service_principal_client_id" { 32 | value = local.cluster_service_principal_client_id 33 | } 34 | 35 | output "cluster_service_principal_client_secret" { 36 | value = local.cluster_service_principal_client_secret 37 | sensitive = true 38 | } 39 | 40 | output "installer_service_principal_app_id" { 41 | value = local.installer_service_principal_app_id 42 | } 43 | 44 | output "installer_service_principal_client_id" { 45 | value = local.installer_service_principal_client_id 46 | } 47 | 48 | output "installer_service_principal_client_secret" { 49 | value = local.installer_service_principal_client_secret 50 | sensitive = true 51 | } 52 | -------------------------------------------------------------------------------- /.cursorrules: -------------------------------------------------------------------------------- 1 | You are a Red Hat Infrastructure Agent working on a Terraform ARO (Azure Red Hat OpenShift) cluster deployment project. 2 | 3 | **Your Mission:** 4 | 5 | 1. Read and follow the best practices defined in AGENTS.md 6 | 2. Always check DESIGN.md before making changes to understand project intent and boundaries 7 | 3. Reference PLAN.md to understand current work and next steps 8 | 4. Apply MOBB RULES best practices contextually based on project purpose (example/demo/development) 9 | 10 | **Key Guidelines:** 11 | 12 | - **Read DESIGN.md first** - Understand project architecture, constraints, and design decisions 13 | - **Follow AGENTS.md** - Apply Terraform, Azure, and ARO best practices from compiled MOBB RULES 14 | - **Context-aware security** - This is an example/demo project with permissive defaults; document security considerations 15 | - **Simplicity over complexity** - Favor straightforward solutions 16 | - **WET over DRY** - Appropriate duplication is acceptable for clarity 17 | - **Document changes** - Update CHANGELOG.md, DESIGN.md, and PLAN.md as needed 18 | 19 | **When making changes:** 20 | 21 | - Ensure all variables have descriptions 22 | - Ensure all outputs have descriptions 23 | - Use consistent naming patterns (`${local.name_prefix}--`) 24 | - Apply tags consistently 25 | - Document security considerations when using permissive rules 26 | - Run `terraform validate` and `terraform fmt` before committing 27 | - Update PLAN.md task status as work progresses 28 | 29 | **Project Context:** 30 | 31 | - Cloud: Azure 32 | - Platform: ARO (Azure Red Hat OpenShift) 33 | - Language: Terraform 34 | - Purpose: Example/demo/development tool 35 | - Security: Permissive defaults with toggleable security features 36 | 37 | **Remember:** This project prioritizes usability and learning. Security defaults are permissive but documented. Production deployments require additional hardening (see DESIGN.md and AGENTS.md). 38 | -------------------------------------------------------------------------------- /modules/aro-permissions/examples/api/terraform-example/main.tf: -------------------------------------------------------------------------------- 1 | terraform { 2 | required_providers { 3 | azureopenshift = { 4 | source = "rh-mobb/azureopenshift" 5 | } 6 | 7 | azurerm = { 8 | source = "hashicorp/azurerm" 9 | version = "~>3.0" 10 | } 11 | } 12 | } 13 | 14 | provider "azurerm" { 15 | features { 16 | resource_group { 17 | prevent_deletion_if_contains_resources = false 18 | } 19 | } 20 | } 21 | 22 | provider "azureopenshift" { 23 | subscription_id = data.azurerm_client_config.current.subscription_id 24 | } 25 | 26 | data "azurerm_client_config" "current" {} 27 | 28 | variable "cluster_sp_client_id" { 29 | type = string 30 | sensitive = true 31 | } 32 | 33 | variable "cluster_sp_client_secret" { 34 | type = string 35 | sensitive = true 36 | } 37 | 38 | resource "azureopenshift_redhatopenshift_cluster" "cluster" { 39 | name = "dscott-api" 40 | location = "eastus" 41 | resource_group_name = "dscott-api-rg" 42 | cluster_resource_group = "dscott-api-cluster-rg" 43 | 44 | master_profile { 45 | subnet_id = "/subscriptions/${data.azurerm_client_config.current.subscription_id}/resourceGroups/dscott-api-vnet-rg/providers/Microsoft.Network/virtualNetworks/dscott-api-aro-vnet-eastus/subnets/dscott-api-aro-control-subnet-eastus" 46 | } 47 | 48 | worker_profile { 49 | subnet_id = "/subscriptions/${data.azurerm_client_config.current.subscription_id}/resourceGroups/dscott-api-vnet-rg/providers/Microsoft.Network/virtualNetworks/dscott-api-aro-vnet-eastus/subnets/dscott-api-aro-machine-subnet-eastus" 50 | } 51 | 52 | service_principal { 53 | client_id = var.cluster_sp_client_id 54 | client_secret = var.cluster_sp_client_secret 55 | } 56 | 57 | api_server_profile { 58 | visibility = "Public" 59 | } 60 | 61 | ingress_profile { 62 | visibility = "Public" 63 | } 64 | 65 | cluster_profile { 66 | pull_secret = file("~/.azure/aro-pull-secret.txt") 67 | version = "4.12.25" 68 | } 69 | } 70 | -------------------------------------------------------------------------------- /modules/aro-managed-identity-permissions/90-outputs.tf: -------------------------------------------------------------------------------- 1 | # 2 | # Output managed identity resource IDs and principal IDs 3 | # 4 | 5 | output "managed_identity_ids" { 6 | description = "Map of managed identity names to their resource IDs" 7 | value = var.enabled ? { 8 | "aro-service" = azurerm_user_assigned_identity.aro_service[0].id 9 | "cloud-controller-manager" = azurerm_user_assigned_identity.cloud_controller_manager[0].id 10 | "cloud-network-config" = azurerm_user_assigned_identity.cloud_network_config[0].id 11 | "cluster" = azurerm_user_assigned_identity.cluster[0].id 12 | "disk-csi-driver" = azurerm_user_assigned_identity.disk_csi_driver[0].id 13 | "file-csi-driver" = azurerm_user_assigned_identity.file_csi_driver[0].id 14 | "image-registry" = azurerm_user_assigned_identity.image_registry[0].id 15 | "ingress" = azurerm_user_assigned_identity.ingress[0].id 16 | "machine-api" = azurerm_user_assigned_identity.machine_api[0].id 17 | } : {} 18 | } 19 | 20 | output "managed_identity_principal_ids" { 21 | description = "Map of managed identity names to their principal IDs" 22 | value = var.enabled ? { 23 | "aro-service" = azurerm_user_assigned_identity.aro_service[0].principal_id 24 | "cloud-controller-manager" = azurerm_user_assigned_identity.cloud_controller_manager[0].principal_id 25 | "cloud-network-config" = azurerm_user_assigned_identity.cloud_network_config[0].principal_id 26 | "cluster" = azurerm_user_assigned_identity.cluster[0].principal_id 27 | "disk-csi-driver" = azurerm_user_assigned_identity.disk_csi_driver[0].principal_id 28 | "file-csi-driver" = azurerm_user_assigned_identity.file_csi_driver[0].principal_id 29 | "image-registry" = azurerm_user_assigned_identity.image_registry[0].principal_id 30 | "ingress" = azurerm_user_assigned_identity.ingress[0].principal_id 31 | "machine-api" = azurerm_user_assigned_identity.machine_api[0].principal_id 32 | } : {} 33 | } 34 | -------------------------------------------------------------------------------- /90-outputs.tf: -------------------------------------------------------------------------------- 1 | # Outputs 2 | # 3 | # All outputs for the Terraform ARO cluster deployment 4 | # Supports both service principal and managed identity deployments 5 | 6 | output "console_url" { 7 | description = "The URL of the ARO cluster web console" 8 | value = var.enable_managed_identities ? try( 9 | lookup( 10 | try(jsondecode(azurerm_resource_group_template_deployment.cluster_managed_identity[0].output_content), {}), 11 | "consoleUrl", 12 | { value = null } 13 | ).value, 14 | null 15 | ) : try(azurerm_redhat_openshift_cluster.cluster[0].console_url, null) 16 | } 17 | 18 | output "api_url" { 19 | description = "The URL of the ARO cluster API server" 20 | value = var.enable_managed_identities ? try( 21 | lookup( 22 | try(jsondecode(azurerm_resource_group_template_deployment.cluster_managed_identity[0].output_content), {}), 23 | "apiServerUrl", 24 | { value = null } 25 | ).value, 26 | null 27 | ) : try(azurerm_redhat_openshift_cluster.cluster[0].api_server_profile[0].url, null) 28 | } 29 | 30 | output "api_server_ip" { 31 | description = "The IP address of the ARO cluster API server" 32 | value = var.enable_managed_identities ? try( 33 | lookup( 34 | try(jsondecode(azurerm_resource_group_template_deployment.cluster_managed_identity[0].output_content), {}), 35 | "apiServerIp", 36 | { value = null } 37 | ).value, 38 | null 39 | ) : try(azurerm_redhat_openshift_cluster.cluster[0].api_server_profile[0].ip_address, null) 40 | } 41 | 42 | output "ingress_ip" { 43 | description = "The IP address of the ARO cluster ingress controller" 44 | value = var.enable_managed_identities ? try( 45 | lookup( 46 | try(jsondecode(azurerm_resource_group_template_deployment.cluster_managed_identity[0].output_content), {}), 47 | "ingressIp", 48 | { value = null } 49 | ).value, 50 | null 51 | ) : try(azurerm_redhat_openshift_cluster.cluster[0].ingress_profile[0].ip_address, null) 52 | } 53 | 54 | output "public_ip" { 55 | description = "The public IP address of the jumphost VM (only available for private clusters)" 56 | value = try(azurerm_public_ip.jumphost_pip[0].ip_address, null) 57 | } 58 | 59 | output "cluster_name" { 60 | description = "The name of the ARO cluster" 61 | value = var.cluster_name 62 | } 63 | 64 | output "resource_group_name" { 65 | description = "The name of the resource group containing the ARO cluster" 66 | value = azurerm_resource_group.main.name 67 | } 68 | -------------------------------------------------------------------------------- /modules/aro-permissions/Makefile: -------------------------------------------------------------------------------- 1 | AZR_LOCATION ?= eastus 2 | ARO_CLUSTER_NAME ?= example 3 | ARO_VNET_RESOURCE_GROUP ?= $(ARO_CLUSTER_NAME)-vnet-rg 4 | ARO_VNET_CIDR ?= 10.0.0.0/22 5 | ARO_VNET_CONTROL_CIDR ?= 10.0.0.0/23 6 | ARO_VNET_WORKER_CIDR ?= 10.0.2.0/23 7 | ARO_PULL_SECRET ?= ~/.azure/aro-pull-secret.txt 8 | 9 | # 10 | # setup tasks for testing 11 | # 12 | setup-test: 13 | az group create \ 14 | --name $(ARO_VNET_RESOURCE_GROUP) \ 15 | --location $(AZR_LOCATION) 16 | 17 | az network vnet create \ 18 | --address-prefixes $(ARO_VNET_CIDR) \ 19 | --name "$(ARO_CLUSTER_NAME)-aro-vnet-$(AZR_LOCATION)" \ 20 | --resource-group $(ARO_VNET_RESOURCE_GROUP) 21 | 22 | az network vnet subnet create \ 23 | --resource-group $(ARO_VNET_RESOURCE_GROUP) \ 24 | --vnet-name "$(ARO_CLUSTER_NAME)-aro-vnet-$(AZR_LOCATION)" \ 25 | --name "$(ARO_CLUSTER_NAME)-aro-control-subnet-$(AZR_LOCATION)" \ 26 | --address-prefixes "$(ARO_VNET_CONTROL_CIDR)" 27 | 28 | az network vnet subnet create \ 29 | --resource-group $(ARO_VNET_RESOURCE_GROUP) \ 30 | --vnet-name "$(ARO_CLUSTER_NAME)-aro-vnet-$(AZR_LOCATION)" \ 31 | --name "$(ARO_CLUSTER_NAME)-aro-worker-subnet-$(AZR_LOCATION)" \ 32 | --address-prefixes "$(ARO_VNET_WORKER_CIDR)" 33 | 34 | az network vnet subnet update \ 35 | --name "$(ARO_CLUSTER_NAME)-aro-control-subnet-$(AZR_LOCATION)" \ 36 | --resource-group $(ARO_VNET_RESOURCE_GROUP) \ 37 | --vnet-name "$(ARO_CLUSTER_NAME)-aro-vnet-$(AZR_LOCATION)" \ 38 | --disable-private-link-service-network-policies true 39 | 40 | NSG=$$(az network nsg create --resource-group $(ARO_VNET_RESOURCE_GROUP) --name $(ARO_CLUSTER_NAME)-nsg -o tsv --query NewNSG.id) 41 | 42 | # NOTE: add this to the above make target when pre-configured NSG is available in the TF provider. until then we can skip testing. 43 | # az network vnet subnet update \ 44 | # --name "$(ARO_CLUSTER_NAME)-aro-control-subnet-$(AZR_LOCATION)" \ 45 | # --resource-group $(ARO_VNET_RESOURCE_GROUP) \ 46 | # --vnet-name "$(ARO_CLUSTER_NAME)-aro-vnet-$(AZR_LOCATION)" \ 47 | # --nsg $${NSG} 48 | 49 | # az network vnet subnet update \ 50 | # --name "$(ARO_CLUSTER_NAME)-aro-worker-subnet-$(AZR_LOCATION)" \ 51 | # --resource-group $(ARO_VNET_RESOURCE_GROUP) \ 52 | # --vnet-name "$(ARO_CLUSTER_NAME)-aro-vnet-$(AZR_LOCATION)" \ 53 | # --nsg $${NSG} 54 | 55 | setup-cluster: 56 | az aro create \ 57 | --resource-group $AZR_RESOURCE_GROUP \ 58 | --name $AZR_CLUSTER \ 59 | --vnet "$AZR_CLUSTER-aro-vnet-$AZR_RESOURCE_LOCATION" \ 60 | --master-subnet "$AZR_CLUSTER-aro-control-subnet-$AZR_RESOURCE_LOCATION" \ 61 | --worker-subnet "$AZR_CLUSTER-aro-machine-subnet-$AZR_RESOURCE_LOCATION" \ 62 | --pull-secret @$AZR_PULL_SECRET 63 | 64 | # 65 | # teardown tasks when done testing 66 | # 67 | teardown-test: 68 | az group delete --name $(ARO_VNET_RESOURCE_GROUP) --yes 69 | -------------------------------------------------------------------------------- /40-acr.tf: -------------------------------------------------------------------------------- 1 | # Azure Container Registry (ACR) in Private ARO Clusters 2 | # https://learn.microsoft.com/en-us/azure/container-registry/container-registry-private-link 3 | 4 | resource "azurerm_subnet" "private_endpoint_subnet" { 5 | # checkov:skip=CKV2_AZURE_31:Private endpoint subnet uses private endpoints for ACR; NSG not applicable for private endpoints 6 | count = var.acr_private ? 1 : 0 7 | name = "PrivateEndpoint-subnet" 8 | resource_group_name = azurerm_resource_group.main.name 9 | virtual_network_name = azurerm_virtual_network.main.name 10 | address_prefixes = [var.aro_private_endpoint_cidr_block] 11 | private_endpoint_network_policies = "Disabled" 12 | #private_link_service_network_policies_enabled = false # To verify 13 | } 14 | 15 | resource "azurerm_private_dns_zone" "dns" { 16 | count = var.acr_private ? 1 : 0 17 | name = "privatelink.azurecr.io" 18 | resource_group_name = azurerm_resource_group.main.name 19 | } 20 | 21 | resource "azurerm_private_dns_zone_virtual_network_link" "dns_link" { 22 | count = var.acr_private ? 1 : 0 23 | name = "acr-dns-link" 24 | resource_group_name = azurerm_resource_group.main.name 25 | private_dns_zone_name = azurerm_private_dns_zone.dns[0].name 26 | virtual_network_id = azurerm_virtual_network.main.id 27 | registration_enabled = false 28 | } 29 | 30 | resource "random_string" "acr" { 31 | length = 4 32 | min_numeric = 4 33 | keepers = { 34 | name = "acraro" 35 | } 36 | } 37 | 38 | resource "azurerm_container_registry" "acr" { 39 | count = var.acr_private ? 1 : 0 40 | name = "acraro${random_string.acr.result}" 41 | location = azurerm_resource_group.main.location 42 | resource_group_name = azurerm_resource_group.main.name 43 | sku = "Premium" 44 | admin_enabled = true 45 | public_network_access_enabled = false 46 | } 47 | 48 | resource "azurerm_private_endpoint" "acr" { 49 | count = var.acr_private ? 1 : 0 50 | name = "acr-pe" 51 | location = azurerm_resource_group.main.location 52 | resource_group_name = azurerm_resource_group.main.name 53 | subnet_id = azurerm_subnet.private_endpoint_subnet[0].id 54 | 55 | private_dns_zone_group { 56 | name = "acr-zonegroup" 57 | private_dns_zone_ids = [ 58 | azurerm_private_dns_zone.dns[0].id 59 | ] 60 | } 61 | 62 | private_service_connection { 63 | name = "acr-connection" 64 | private_connection_resource_id = azurerm_container_registry.acr[0].id 65 | is_manual_connection = false 66 | subresource_names = ["registry"] 67 | } 68 | } 69 | -------------------------------------------------------------------------------- /modules/aro-managed-identity-permissions/01-variables.tf: -------------------------------------------------------------------------------- 1 | variable "cluster_name" { 2 | type = string 3 | description = "Name of the cluster to setup permissions for." 4 | } 5 | 6 | variable "aro_resource_group" { 7 | type = object({ 8 | name = string 9 | create = bool 10 | }) 11 | description = "ARO resource group to use or optionally create." 12 | } 13 | 14 | variable "vnet" { 15 | type = string 16 | description = "VNET where ARO will be deployed into." 17 | } 18 | 19 | variable "vnet_resource_group" { 20 | type = string 21 | default = null 22 | description = "Resource Group where the VNET resides. If unspecified, defaults to 'aro_resource_group.name'." 23 | } 24 | 25 | variable "subnets" { 26 | type = list(string) 27 | description = "Names of subnets used that belong to the 'vnet' variable. Must be a child of the 'vnet'." 28 | } 29 | 30 | variable "route_tables" { 31 | type = list(string) 32 | default = [] 33 | description = "Names of route tables for user-defined routing. Route tables are assumed to exist in 'vnet_resource_group'." 34 | } 35 | 36 | variable "nat_gateways" { 37 | type = list(string) 38 | default = [] 39 | description = "Names of NAT gateways for user-defined routing. NAT gateways are assumed to exist in 'vnet_resource_group'." 40 | } 41 | 42 | variable "network_security_group" { 43 | type = string 44 | default = null 45 | description = "Network security group used in a BYO-NSG scenario." 46 | } 47 | 48 | variable "minimal_network_role" { 49 | type = string 50 | default = null 51 | description = "Role to manage to substitute for full 'Network Contributor' on network objects. If specified, this is created, otherwise 'Network Contributor' is used." 52 | } 53 | 54 | variable "subscription_id" { 55 | type = string 56 | description = "Azure subscription ID" 57 | } 58 | 59 | variable "tenant_id" { 60 | type = string 61 | description = "Azure tenant ID" 62 | } 63 | 64 | variable "location" { 65 | type = string 66 | default = "eastus" 67 | description = "Azure region where region-specific objects exist or are to be created." 68 | } 69 | 70 | variable "environment" { 71 | type = string 72 | default = "public" 73 | description = "Explicitly use a specific Azure environment. One of: [public, usgovernment, dod]." 74 | 75 | validation { 76 | condition = contains(["public", "usgovernment", "dod"], var.environment) 77 | error_message = "'environment' must be one of: ['public', 'usgovernment', 'dod']." 78 | } 79 | } 80 | 81 | variable "enabled" { 82 | type = bool 83 | default = true 84 | description = "Enable creation of managed identity resources. When false, module creates no resources." 85 | } 86 | 87 | variable "tags" { 88 | type = map(string) 89 | default = {} 90 | description = "Tags to apply to all managed identity resources." 91 | } 92 | -------------------------------------------------------------------------------- /modules/aro-managed-identity-permissions/20-identities.tf: -------------------------------------------------------------------------------- 1 | # 2 | # Create 9 managed identities for ARO cluster 3 | # Based on Microsoft documentation: https://learn.microsoft.com/en-us/azure/openshift/howto-create-openshift-cluster?pivots=aro-deploy-az-cli 4 | # 5 | 6 | locals { 7 | managed_identities = [ 8 | "${var.cluster_name}-aro-service", # 0 - aro-operator 9 | "${var.cluster_name}-cloud-controller-manager", # 1 10 | "${var.cluster_name}-cloud-network-config", # 2 11 | "${var.cluster_name}-cluster", # 3 12 | "${var.cluster_name}-disk-csi-driver", # 4 13 | "${var.cluster_name}-file-csi-driver", # 5 14 | "${var.cluster_name}-image-registry", # 6 15 | "${var.cluster_name}-ingress", # 7 16 | "${var.cluster_name}-machine-api", # 8 17 | ] 18 | } 19 | 20 | resource "azurerm_user_assigned_identity" "aro_service" { 21 | count = var.enabled ? 1 : 0 22 | 23 | name = local.managed_identities[0] 24 | location = var.location 25 | resource_group_name = local.aro_resource_group_name 26 | tags = var.tags 27 | } 28 | 29 | resource "azurerm_user_assigned_identity" "cloud_controller_manager" { 30 | count = var.enabled ? 1 : 0 31 | 32 | name = local.managed_identities[1] 33 | location = var.location 34 | resource_group_name = local.aro_resource_group_name 35 | tags = var.tags 36 | } 37 | 38 | resource "azurerm_user_assigned_identity" "cloud_network_config" { 39 | count = var.enabled ? 1 : 0 40 | 41 | name = local.managed_identities[2] 42 | location = var.location 43 | resource_group_name = local.aro_resource_group_name 44 | tags = var.tags 45 | } 46 | 47 | resource "azurerm_user_assigned_identity" "cluster" { 48 | count = var.enabled ? 1 : 0 49 | 50 | name = local.managed_identities[3] 51 | location = var.location 52 | resource_group_name = local.aro_resource_group_name 53 | tags = var.tags 54 | } 55 | 56 | resource "azurerm_user_assigned_identity" "disk_csi_driver" { 57 | count = var.enabled ? 1 : 0 58 | 59 | name = local.managed_identities[4] 60 | location = var.location 61 | resource_group_name = local.aro_resource_group_name 62 | tags = var.tags 63 | } 64 | 65 | resource "azurerm_user_assigned_identity" "file_csi_driver" { 66 | count = var.enabled ? 1 : 0 67 | 68 | name = local.managed_identities[5] 69 | location = var.location 70 | resource_group_name = local.aro_resource_group_name 71 | tags = var.tags 72 | } 73 | 74 | resource "azurerm_user_assigned_identity" "image_registry" { 75 | count = var.enabled ? 1 : 0 76 | 77 | name = local.managed_identities[6] 78 | location = var.location 79 | resource_group_name = local.aro_resource_group_name 80 | tags = var.tags 81 | } 82 | 83 | resource "azurerm_user_assigned_identity" "ingress" { 84 | count = var.enabled ? 1 : 0 85 | 86 | name = local.managed_identities[7] 87 | location = var.location 88 | resource_group_name = local.aro_resource_group_name 89 | tags = var.tags 90 | } 91 | 92 | resource "azurerm_user_assigned_identity" "machine_api" { 93 | count = var.enabled ? 1 : 0 94 | 95 | name = local.managed_identities[8] 96 | location = var.location 97 | resource_group_name = local.aro_resource_group_name 98 | tags = var.tags 99 | } 100 | -------------------------------------------------------------------------------- /.github/workflows/pr.yml: -------------------------------------------------------------------------------- 1 | name: Pre-commit Checks 2 | 3 | on: 4 | pull_request: 5 | branches: 6 | - main 7 | push: 8 | branches: 9 | - main 10 | 11 | jobs: 12 | pr-checks: 13 | name: Run pre-commit checks 14 | runs-on: ubuntu-latest 15 | permissions: 16 | contents: read 17 | pull-requests: write 18 | 19 | steps: 20 | - name: Checkout code 21 | uses: actions/checkout@v4 22 | 23 | - name: Setup Terraform 24 | uses: hashicorp/setup-terraform@v3 25 | with: 26 | terraform_version: "1.12.2" 27 | terraform_wrapper: false 28 | 29 | - name: Setup tflint 30 | uses: terraform-linters/setup-tflint@v4 31 | with: 32 | tflint_version: "latest" 33 | 34 | - name: Setup checkov (optional) 35 | run: | 36 | pip install checkov==3.2.495 || echo "checkov installation failed, continuing without it" 37 | 38 | - name: Cache Terraform providers 39 | uses: actions/cache@v4 40 | with: 41 | path: | 42 | .terraform 43 | .terraform.lock.hcl 44 | key: ${{ runner.os }}-terraform-${{ hashFiles('**/*.tf', '**/*.tfvars') }} 45 | restore-keys: | 46 | ${{ runner.os }}-terraform- 47 | 48 | - name: Create dummy SSH keys for validation 49 | run: | 50 | mkdir -p ~/.ssh 51 | ssh-keygen -t rsa -b 2048 -f ~/.ssh/id_rsa -N "" -q 52 | chmod 600 ~/.ssh/id_rsa 53 | chmod 644 ~/.ssh/id_rsa.pub 54 | 55 | - name: Run pre-commit checks 56 | id: pr-checks 57 | run: make pr 58 | 59 | - name: Comment PR with results 60 | if: github.event_name == 'pull_request' && always() 61 | uses: actions/github-script@v7 62 | with: 63 | script: | 64 | const { data: comments } = await github.rest.issues.listComments({ 65 | owner: context.repo.owner, 66 | repo: context.repo.repo, 67 | issue_number: context.issue.number, 68 | }); 69 | 70 | // Delete existing bot comments 71 | const botComments = comments.filter(comment => 72 | comment.user.type === 'Bot' && comment.body.includes('Pre-commit Checks') 73 | ); 74 | for (const comment of botComments) { 75 | await github.rest.issues.deleteComment({ 76 | owner: context.repo.owner, 77 | repo: context.repo.repo, 78 | comment_id: comment.id, 79 | }); 80 | } 81 | 82 | // Create new comment based on step outcome 83 | const stepOutcome = '${{ steps.pr-checks.outcome }}'; 84 | let comment = '## Pre-commit Checks\n\n'; 85 | 86 | if (stepOutcome === 'success') { 87 | comment += '✅ All pre-commit checks passed!\n\n'; 88 | comment += '- ✅ Terraform validate\n'; 89 | comment += '- ✅ Terraform fmt\n'; 90 | comment += '- ✅ tflint\n'; 91 | comment += '- ✅ checkov (if installed)\n\n'; 92 | comment += '**Note:** Plan step is skipped in CI. Run `make test` locally for full test suite including plan.'; 93 | } else { 94 | comment += '❌ Pre-commit checks failed. Please review the logs above.\n\n'; 95 | comment += 'Run `make pr` locally to see detailed errors.'; 96 | } 97 | 98 | await github.rest.issues.createComment({ 99 | issue_number: context.issue.number, 100 | owner: context.repo.owner, 101 | repo: context.repo.repo, 102 | body: comment 103 | }); 104 | -------------------------------------------------------------------------------- /30-jumphost.tf: -------------------------------------------------------------------------------- 1 | resource "azurerm_subnet" "jumphost_subnet" { 2 | # checkov:skip=CKV2_AZURE_31:Jumphost subnet uses NSG via network_interface_security_group_association; direct subnet NSG not required 3 | count = var.api_server_profile == "Private" || var.ingress_profile == "Private" ? 1 : 0 4 | name = "${local.name_prefix}-jumphost-subnet" 5 | resource_group_name = azurerm_resource_group.main.name 6 | virtual_network_name = azurerm_virtual_network.main.name 7 | address_prefixes = [var.aro_jumphost_subnet_cidr_block] 8 | service_endpoints = ["Microsoft.ContainerRegistry"] 9 | } 10 | 11 | # Due to remote-exec issue Static allocation needs 12 | # to be used - https://github.com/hashicorp/terraform/issues/21665 13 | resource "azurerm_public_ip" "jumphost_pip" { 14 | count = var.api_server_profile == "Private" || var.ingress_profile == "Private" ? 1 : 0 15 | name = "${local.name_prefix}-jumphost-pip" 16 | resource_group_name = azurerm_resource_group.main.name 17 | location = azurerm_resource_group.main.location 18 | allocation_method = "Static" 19 | 20 | tags = var.tags 21 | } 22 | 23 | resource "azurerm_network_interface" "jumphost_nic" { 24 | # checkov:skip=CKV_AZURE_119:Jumphost requires public IP for SSH access to private ARO clusters; security controlled via NSG 25 | count = var.api_server_profile == "Private" || var.ingress_profile == "Private" ? 1 : 0 26 | name = "${local.name_prefix}-jumphost-nic" 27 | resource_group_name = azurerm_resource_group.main.name 28 | location = azurerm_resource_group.main.location 29 | 30 | ip_configuration { 31 | name = "internal" 32 | subnet_id = azurerm_subnet.jumphost_subnet[0].id 33 | private_ip_address_allocation = "Dynamic" 34 | public_ip_address_id = azurerm_public_ip.jumphost_pip[0].id 35 | } 36 | 37 | tags = var.tags 38 | } 39 | 40 | resource "azurerm_network_security_group" "jumphost_nsg" { 41 | count = var.api_server_profile == "Private" || var.ingress_profile == "Private" ? 1 : 0 42 | name = "${local.name_prefix}-jumphost-nsg" 43 | resource_group_name = azurerm_resource_group.main.name 44 | location = azurerm_resource_group.main.location 45 | 46 | security_rule { 47 | name = "allow_ssh_sg" 48 | priority = 100 49 | direction = "Inbound" 50 | access = "Allow" 51 | protocol = "Tcp" 52 | source_port_range = "*" 53 | destination_port_range = "22" 54 | source_address_prefix = "*" 55 | destination_address_prefix = "*" 56 | } 57 | 58 | tags = var.tags 59 | } 60 | 61 | resource "azurerm_network_interface_security_group_association" "jumphost_association" { 62 | count = var.api_server_profile == "Private" || var.ingress_profile == "Private" ? 1 : 0 63 | network_interface_id = azurerm_network_interface.jumphost_nic[0].id 64 | network_security_group_id = azurerm_network_security_group.jumphost_nsg[0].id 65 | } 66 | 67 | resource "azurerm_linux_virtual_machine" "jumphost_vm" { 68 | count = var.api_server_profile == "Private" || var.ingress_profile == "Private" ? 1 : 0 69 | name = "${local.name_prefix}-jumphost" 70 | resource_group_name = azurerm_resource_group.main.name 71 | location = azurerm_resource_group.main.location 72 | size = "Standard_D2s_v3" 73 | admin_username = "aro" 74 | 75 | network_interface_ids = [ 76 | azurerm_network_interface.jumphost_nic[0].id, 77 | ] 78 | 79 | admin_ssh_key { 80 | username = "aro" 81 | public_key = file(var.jumphost_ssh_public_key_path) 82 | } 83 | 84 | os_disk { 85 | caching = "ReadWrite" 86 | storage_account_type = "Standard_LRS" 87 | } 88 | 89 | source_image_reference { 90 | publisher = "RedHat" 91 | offer = "RHEL" 92 | sku = "8.2" 93 | version = "8.2.2021040911" 94 | } 95 | 96 | provisioner "remote-exec" { 97 | connection { 98 | type = "ssh" 99 | host = azurerm_public_ip.jumphost_pip[0].ip_address 100 | user = "aro" 101 | private_key = file(var.jumphost_ssh_private_key_path) 102 | } 103 | inline = [ 104 | "sudo dnf install telnet wget bash-completion -y", 105 | "wget https://mirror.openshift.com/pub/openshift-v4/clients/ocp/${local.aro_version}/openshift-client-linux.tar.gz", 106 | "tar -xvf openshift-client-linux.tar.gz", 107 | "sudo mv oc kubectl /usr/bin/", 108 | "oc completion bash > oc_bash_completion", 109 | "sudo cp oc_bash_completion /etc/bash_completion.d/" 110 | ] 111 | } 112 | 113 | tags = var.tags 114 | } 115 | -------------------------------------------------------------------------------- /modules/aro-permissions/20-identities.tf: -------------------------------------------------------------------------------- 1 | # 2 | # cluster service principal 3 | # 4 | locals { 5 | cluster_service_principal_name = (var.cluster_service_principal.name == "") || (var.cluster_service_principal.name == null) ? "${var.cluster_name}-cluster" : var.cluster_service_principal.name 6 | cluster_service_principal_create = var.cluster_service_principal.create 7 | } 8 | 9 | # NOTE: pull the existing service principal if one was passed and we are not creating it 10 | data "azuread_service_principal" "cluster" { 11 | count = local.cluster_service_principal_create ? 0 : 1 12 | 13 | display_name = local.cluster_service_principal_name 14 | } 15 | 16 | # NOTE: create the service principal if creation is requested 17 | resource "azuread_application" "cluster" { 18 | count = local.cluster_service_principal_create ? 1 : 0 19 | 20 | display_name = local.cluster_service_principal_name 21 | owners = [data.azuread_client_config.current.object_id] 22 | } 23 | 24 | resource "azuread_application_password" "cluster" { 25 | count = local.cluster_service_principal_create ? 1 : 0 26 | 27 | display_name = local.cluster_service_principal_name 28 | application_id = local.cluster_service_principal_app_id 29 | } 30 | 31 | resource "azuread_service_principal" "cluster" { 32 | count = local.cluster_service_principal_create ? 1 : 0 33 | 34 | client_id = local.cluster_service_principal_client_id 35 | owners = [data.azuread_client_config.current.object_id] 36 | } 37 | 38 | locals { 39 | cluster_service_principal_object_id = local.cluster_service_principal_create ? azuread_service_principal.cluster[0].object_id : data.azuread_service_principal.cluster[0].object_id 40 | cluster_service_principal_client_id = local.cluster_service_principal_create ? azuread_application.cluster[0].client_id : null 41 | cluster_service_principal_app_id = local.cluster_service_principal_create ? azuread_application.cluster[0].id : null 42 | cluster_service_principal_client_secret = local.cluster_service_principal_create ? azuread_application_password.cluster[0].value : null 43 | } 44 | 45 | # 46 | # installer service principal 47 | # 48 | locals { 49 | installer_user_set = (var.installer_user != "") && (var.installer_user != null) 50 | installer_service_principal_name = (var.installer_service_principal.name == "") || (var.installer_service_principal.name == null) ? "${var.cluster_name}-installer" : var.installer_service_principal.name 51 | installer_service_principal_create = var.installer_service_principal.create 52 | } 53 | 54 | # NOTE: pull the existing service principal if one was passed and we are not creating it and the user is not set 55 | data "azuread_service_principal" "installer" { 56 | count = local.installer_user_set ? 0 : (local.installer_service_principal_create ? 0 : 1) 57 | 58 | display_name = local.installer_service_principal_name 59 | } 60 | 61 | resource "azuread_application" "installer" { 62 | count = local.installer_user_set ? 0 : (local.installer_service_principal_create ? 1 : 0) 63 | 64 | display_name = local.installer_service_principal_name 65 | owners = [data.azuread_client_config.current.object_id] 66 | } 67 | 68 | resource "azuread_application_password" "installer" { 69 | count = local.installer_user_set ? 0 : (local.installer_service_principal_create ? 1 : 0) 70 | 71 | display_name = local.installer_service_principal_name 72 | application_id = local.installer_service_principal_app_id 73 | } 74 | 75 | resource "azuread_service_principal" "installer" { 76 | count = local.installer_user_set ? 0 : (local.installer_service_principal_create ? 1 : 0) 77 | 78 | client_id = local.installer_service_principal_client_id 79 | owners = [data.azuread_client_config.current.object_id] 80 | } 81 | 82 | data "azuread_user" "installer" { 83 | count = local.installer_user_set ? 1 : 0 84 | 85 | user_principal_name = var.installer_user 86 | } 87 | 88 | locals { 89 | installer_service_principal_object_id = local.installer_user_set ? null : (local.installer_service_principal_create ? azuread_service_principal.installer[0].object_id : data.azuread_service_principal.installer[0].object_id) 90 | installer_user_object_id = local.installer_user_set ? data.azuread_user.installer[0].object_id : null 91 | installer_object_id = local.installer_user_set ? local.installer_user_object_id : local.installer_service_principal_object_id 92 | installer_service_principal_app_id = local.installer_service_principal_create ? azuread_application.installer[0].id : null 93 | installer_service_principal_client_id = local.installer_service_principal_create ? azuread_application.installer[0].client_id : null 94 | installer_service_principal_client_secret = local.installer_service_principal_create ? azuread_application_password.installer[0].value : null 95 | } 96 | 97 | # 98 | # aro resource provider service principal 99 | # NOTE: this is created by the 'az provider register' commands and will be pre-existing once that command has been run. 100 | # 101 | data "azuread_service_principal" "aro_resource_provider" { 102 | display_name = var.resource_provider_service_principal_name 103 | } 104 | -------------------------------------------------------------------------------- /10-network.tf: -------------------------------------------------------------------------------- 1 | resource "azurerm_resource_group" "main" { 2 | name = "${local.name_prefix}-rg" 3 | location = var.location 4 | tags = var.tags 5 | } 6 | 7 | resource "azurerm_virtual_network" "main" { 8 | name = "${local.name_prefix}-vnet" 9 | location = azurerm_resource_group.main.location 10 | resource_group_name = azurerm_resource_group.main.name 11 | address_space = [var.aro_virtual_network_cidr_block] 12 | tags = var.tags 13 | } 14 | 15 | resource "azurerm_subnet" "control_plane_subnet" { 16 | name = "${local.name_prefix}-cp-subnet" 17 | resource_group_name = azurerm_resource_group.main.name 18 | virtual_network_name = azurerm_virtual_network.main.name 19 | address_prefixes = [var.aro_control_subnet_cidr_block] 20 | 21 | # ARO requirement: Disable private endpoint and private link service network policies 22 | # private_endpoint_network_policies = "Disabled" 23 | # private_link_service_network_policies_enabled = false 24 | private_link_service_network_policies_enabled = false 25 | 26 | service_endpoints = ["Microsoft.Storage", "Microsoft.ContainerRegistry"] 27 | } 28 | 29 | resource "azurerm_subnet" "machine_subnet" { 30 | name = "${local.name_prefix}-machine-subnet" 31 | resource_group_name = azurerm_resource_group.main.name 32 | virtual_network_name = azurerm_virtual_network.main.name 33 | address_prefixes = [var.aro_machine_subnet_cidr_block] 34 | 35 | # ARO requirement: Disable private endpoint and private link service network policies 36 | # private_endpoint_network_policies = "Disabled" 37 | # private_link_service_network_policies_enabled = false 38 | 39 | service_endpoints = ["Microsoft.Storage", "Microsoft.ContainerRegistry"] 40 | } 41 | 42 | resource "azurerm_network_security_group" "aro" { 43 | name = "${local.name_prefix}-nsg" 44 | location = azurerm_resource_group.main.location 45 | resource_group_name = azurerm_resource_group.main.name 46 | tags = var.tags 47 | } 48 | 49 | // TODO: Security hardening for private clusters 50 | // Current: Permissive NSG rules allow access from 0.0.0.0/0 (anywhere) 51 | // For production: Restrict source_address_prefix to specific IP ranges or VNet CIDR blocks 52 | // Rationale: Private clusters should only accept traffic from trusted sources 53 | // See DESIGN.md "Production Hardening Required" section for details 54 | resource "azurerm_network_security_rule" "aro_inbound_api" { 55 | name = "${local.name_prefix}-inbound-api" 56 | network_security_group_name = azurerm_network_security_group.aro.name 57 | resource_group_name = azurerm_resource_group.main.name 58 | priority = 120 59 | direction = "Inbound" 60 | access = "Allow" 61 | protocol = "Tcp" 62 | source_port_range = "*" 63 | destination_port_range = "6443" 64 | source_address_prefix = "0.0.0.0/0" 65 | destination_address_prefix = "*" 66 | } 67 | 68 | // TODO: Security hardening for private clusters 69 | // Current: Permissive NSG rules allow HTTP access from 0.0.0.0/0 (anywhere) 70 | // For production: Restrict source_address_prefix to specific IP ranges or VNet CIDR blocks 71 | // Rationale: Private clusters should only accept traffic from trusted sources 72 | // See DESIGN.md "Production Hardening Required" section for details 73 | resource "azurerm_network_security_rule" "aro_inbound_http" { 74 | name = "${local.name_prefix}-inbound-http" 75 | network_security_group_name = azurerm_network_security_group.aro.name 76 | resource_group_name = azurerm_resource_group.main.name 77 | priority = 500 78 | direction = "Inbound" 79 | access = "Allow" 80 | protocol = "Tcp" 81 | source_port_range = "*" 82 | destination_port_range = "80" 83 | source_address_prefix = "0.0.0.0/0" 84 | destination_address_prefix = "*" 85 | } 86 | 87 | // TODO: Security hardening for private clusters 88 | // Current: Permissive NSG rules allow HTTPS access from 0.0.0.0/0 (anywhere) 89 | // For production: Restrict source_address_prefix to specific IP ranges or VNet CIDR blocks 90 | // Rationale: Private clusters should only accept traffic from trusted sources 91 | // See DESIGN.md "Production Hardening Required" section for details 92 | resource "azurerm_network_security_rule" "aro_inbound_https" { 93 | name = "${local.name_prefix}-inbound-https" 94 | network_security_group_name = azurerm_network_security_group.aro.name 95 | resource_group_name = azurerm_resource_group.main.name 96 | priority = 501 97 | direction = "Inbound" 98 | access = "Allow" 99 | protocol = "Tcp" 100 | source_port_range = "*" 101 | destination_port_range = "443" 102 | source_address_prefix = "0.0.0.0/0" 103 | destination_address_prefix = "*" 104 | } 105 | 106 | # NSG associations are only created for service principal deployments 107 | # For managed identity deployments, subnets must NOT have NSGs attached (ARO requirement) 108 | # TODO: Investigate NSG support for managed identity clusters - currently NSGs cannot be attached to subnets 109 | # See: https://learn.microsoft.com/en-us/azure/openshift/howto-create-openshift-cluster?pivots=aro-deploy-az-arm-template 110 | resource "azurerm_subnet_network_security_group_association" "control_plane" { 111 | count = var.enable_managed_identities ? 0 : 1 112 | 113 | subnet_id = azurerm_subnet.control_plane_subnet.id 114 | network_security_group_id = azurerm_network_security_group.aro.id 115 | } 116 | 117 | resource "azurerm_subnet_network_security_group_association" "machine" { 118 | count = var.enable_managed_identities ? 0 : 1 119 | 120 | subnet_id = azurerm_subnet.machine_subnet.id 121 | network_security_group_id = azurerm_network_security_group.aro.id 122 | } 123 | -------------------------------------------------------------------------------- /modules/aro-permissions/10-roles.tf: -------------------------------------------------------------------------------- 1 | # 2 | # minimal network role 3 | # 4 | locals { 5 | has_custom_network_role = (var.minimal_network_role != null && var.minimal_network_role != "") 6 | 7 | # base permissions needed on vnets 8 | vnet_permissions_base = [ 9 | "Microsoft.Network/virtualNetworks/join/action", 10 | "Microsoft.Network/virtualNetworks/read" 11 | ] 12 | 13 | # base permissions needed on subnets 14 | # NOTE: once write permissions are removed from subnets, we can create this as a base local 15 | # like we do with vnet/route tables/nat gateways and apply them to subnets much 16 | # like we do on lines 45-47. 17 | subnet_permissions = [ 18 | "Microsoft.Network/virtualNetworks/subnets/join/action", 19 | "Microsoft.Network/virtualNetworks/subnets/read", 20 | "Microsoft.Network/virtualNetworks/subnets/write" 21 | ] 22 | 23 | # base permissions needed by vnets with route tables 24 | route_table_permissions_base = [ 25 | "Microsoft.Network/routeTables/join/action", 26 | "Microsoft.Network/routeTables/read" 27 | ] 28 | 29 | # base permissions needed by vnets with nat gateways 30 | nat_gateway_permissions_base = [ 31 | "Microsoft.Network/natGateways/join/action", 32 | "Microsoft.Network/natGateways/read" 33 | ] 34 | 35 | # base permissions needed by vnets which use a custom network security group 36 | network_security_group_permissions = [ 37 | "Microsoft.Network/networkSecurityGroups/join/action" 38 | ] 39 | 40 | # Service principals need write permissions for network objects 41 | vnet_permissions = concat(local.vnet_permissions_base, ["Microsoft.Network/virtualNetworks/write"]) 42 | route_table_permissions = concat(local.route_table_permissions_base, ["Microsoft.Network/routeTables/write"]) 43 | nat_gateway_permissions = concat(local.nat_gateway_permissions_base, ["Microsoft.Network/natGateways/write"]) 44 | } 45 | 46 | # vnet 47 | resource "azurerm_role_definition" "network" { 48 | count = local.has_custom_network_role ? 1 : 0 49 | 50 | name = var.minimal_network_role 51 | description = "Custom role for ARO network for cluster: ${var.cluster_name}" 52 | scope = local.vnet_id 53 | assignable_scopes = [local.vnet_id] 54 | 55 | permissions { 56 | actions = local.vnet_permissions 57 | } 58 | } 59 | 60 | # subnet 61 | # TODO: this eventually needs to change scopes to subnets 62 | resource "azurerm_role_definition" "subnet" { 63 | count = local.has_custom_network_role ? 1 : 0 64 | 65 | name = "${var.minimal_network_role}-subnet" 66 | description = "Custom role for ARO network subnets for cluster: ${var.cluster_name}" 67 | scope = local.vnet_id 68 | assignable_scopes = [local.vnet_id] 69 | 70 | permissions { 71 | actions = local.subnet_permissions 72 | } 73 | } 74 | 75 | # route tables 76 | resource "azurerm_role_definition" "network_route_tables" { 77 | count = local.has_custom_network_role ? length(local.route_table_ids) : 0 78 | 79 | name = "${var.minimal_network_role}-rt${count.index}" 80 | description = "Custom role for ARO network route tables for cluster: ${var.cluster_name}" 81 | scope = local.route_table_ids[count.index] 82 | assignable_scopes = [local.route_table_ids[count.index]] 83 | 84 | permissions { 85 | actions = local.route_table_permissions 86 | } 87 | } 88 | 89 | # nat gateways 90 | resource "azurerm_role_definition" "network_nat_gateways" { 91 | count = local.has_custom_network_role ? length(local.nat_gateway_ids) : 0 92 | 93 | name = "${var.minimal_network_role}-natgw${count.index}" 94 | description = "Custom role for ARO network NAT gateways for cluster: ${var.cluster_name}" 95 | scope = local.nat_gateway_ids[count.index] 96 | assignable_scopes = [local.nat_gateway_ids[count.index]] 97 | 98 | permissions { 99 | actions = local.nat_gateway_permissions 100 | } 101 | } 102 | 103 | # network security group 104 | resource "azurerm_role_definition" "network_network_security_group" { 105 | count = local.has_custom_network_role && (var.network_security_group != null && var.network_security_group != "") ? 1 : 0 106 | 107 | name = "${var.minimal_network_role}-nsg" 108 | description = "Custom role for ARO network NSG for cluster: ${var.cluster_name}" 109 | scope = local.network_security_group_id 110 | assignable_scopes = [local.network_security_group_id] 111 | 112 | permissions { 113 | actions = local.network_security_group_permissions 114 | } 115 | } 116 | 117 | # 118 | # minimal aro role 119 | # 120 | locals { 121 | has_custom_aro_role = (var.minimal_aro_role != null && var.minimal_aro_role != "") 122 | has_custom_des_role = (var.disk_encryption_set != null && var.disk_encryption_set != "") 123 | 124 | # base permissions needed by all 125 | aro_permissions = [ 126 | "Microsoft.RedHatOpenShift/openShiftClusters/read", 127 | "Microsoft.RedHatOpenShift/openShiftClusters/write", 128 | "Microsoft.RedHatOpenShift/openShiftClusters/delete", 129 | "Microsoft.RedHatOpenShift/openShiftClusters/listCredentials/action", 130 | "Microsoft.RedHatOpenShift/openShiftClusters/listAdminCredentials/action" 131 | ] 132 | 133 | # permissions needed when disk encryption set is selected 134 | des_permissions = [ 135 | "Microsoft.Compute/diskEncryptionSets/read" 136 | ] 137 | } 138 | 139 | # aro 140 | resource "azurerm_role_definition" "aro" { 141 | count = local.has_custom_aro_role ? 1 : 0 142 | 143 | name = var.minimal_aro_role 144 | description = "Custom role for ARO for cluster: ${var.cluster_name}" 145 | scope = local.aro_resource_group_id 146 | assignable_scopes = [local.aro_resource_group_id] 147 | 148 | permissions { 149 | actions = local.aro_permissions 150 | } 151 | } 152 | 153 | # disk encryption set 154 | resource "azurerm_role_definition" "des" { 155 | count = local.has_custom_des_role ? 1 : 0 156 | 157 | name = "${var.cluster_name}-des" 158 | description = "Custom role for disk encryption set for cluster: ${var.cluster_name}" 159 | scope = local.disk_encryption_set_id 160 | assignable_scopes = [local.disk_encryption_set_id] 161 | 162 | permissions { 163 | actions = local.des_permissions 164 | } 165 | } 166 | -------------------------------------------------------------------------------- /20-iam.tf: -------------------------------------------------------------------------------- 1 | data "azurerm_client_config" "current" {} 2 | 3 | # NOTE: we need to store a single input that we pass into the aro_permissions module because 4 | # modules cannot use depends_on and we need to ensure all of our objects have been 5 | # created prior to setting permissions/policies 6 | resource "terraform_data" "aro_permission_wait" { 7 | input = { 8 | cluster_name = var.cluster_name 9 | } 10 | 11 | # ensure that we create all of our objects before attempting to apply policies that restrict 12 | # their creation 13 | depends_on = [ 14 | azurerm_subnet.control_plane_subnet, 15 | azurerm_subnet.firewall_subnet, 16 | azurerm_subnet.jumphost_subnet, 17 | azurerm_subnet.machine_subnet, 18 | azurerm_subnet.private_endpoint_subnet, 19 | azurerm_route_table.firewall_rt, 20 | azurerm_subnet_route_table_association.firewall_rt_aro_cp_subnet_association, 21 | azurerm_subnet_route_table_association.firewall_rt_aro_machine_subnet_association, 22 | azurerm_network_security_group.aro, 23 | azurerm_subnet_network_security_group_association.control_plane, 24 | azurerm_subnet_network_security_group_association.machine 25 | ] 26 | } 27 | 28 | # Service Principal Permissions Module (when managed identities are disabled) 29 | # Vendored module: terraform-aro-permissions v0.2.1 (modernized) 30 | # Original source: https://github.com/rh-mobb/terraform-aro-permissions.git?ref=v0.2.1 31 | # NOTE: Module has been modernized to remove provider blocks, allowing count/for_each usage 32 | # NOTE: depends_on cluster ensures cluster is deleted FIRST during destroy (reverse dependency order) 33 | module "aro_permissions" { 34 | count = var.enable_managed_identities ? 0 : 1 35 | 36 | source = "./modules/aro-permissions" 37 | 38 | # NOTE: terraform installation == 'api' installation_type (as opposed to 'cli') 39 | installation_type = "api" 40 | 41 | # do not output the credentials to a file 42 | output_as_file = true 43 | 44 | # use custom roles with minimal permissions 45 | minimal_network_role = "${var.cluster_name}-network" 46 | minimal_aro_role = "${var.cluster_name}-aro" 47 | 48 | # cluster parameters 49 | cluster_name = terraform_data.aro_permission_wait.output.cluster_name 50 | vnet = azurerm_virtual_network.main.name 51 | vnet_resource_group = azurerm_resource_group.main.name 52 | network_security_group = azurerm_network_security_group.aro.name 53 | 54 | aro_resource_group = { 55 | name = azurerm_resource_group.main.name 56 | create = false 57 | } 58 | 59 | # service principals 60 | cluster_service_principal = { 61 | name = local.cluster_service_principal_name 62 | create = true 63 | } 64 | 65 | installer_service_principal = { 66 | name = local.installer_service_principal_name 67 | create = true 68 | } 69 | 70 | # set custom permissions 71 | nat_gateways = [] 72 | subnets = [azurerm_subnet.control_plane_subnet.name, azurerm_subnet.machine_subnet.name] 73 | route_tables = var.restrict_egress_traffic ? [azurerm_route_table.firewall_rt[0].name] : [] 74 | 75 | # further restrict via policy 76 | managed_resource_group = "${azurerm_resource_group.main.name}-managed" 77 | apply_vnet_policy = var.apply_restricted_policies 78 | apply_subnet_policy = var.apply_restricted_policies 79 | apply_route_table_policy = var.apply_restricted_policies 80 | apply_nat_gateway_policy = var.apply_restricted_policies 81 | apply_nsg_policy = var.apply_restricted_policies 82 | apply_dns_policy = var.apply_restricted_policies && var.domain != null && var.domain != "" 83 | apply_private_dns_policy = var.apply_restricted_policies && var.domain != null && var.domain != "" 84 | apply_public_ip_policy = var.apply_restricted_policies && var.api_server_profile != "Public" && var.ingress_profile != "Public" 85 | 86 | # explicitly set location, subscription id and tenant id 87 | location = var.location 88 | subscription_id = data.azurerm_client_config.current.subscription_id 89 | tenant_id = data.azurerm_client_config.current.tenant_id 90 | } 91 | 92 | # Managed Identity Permissions Module (when managed identities are enabled) 93 | # Simplified module with explicit role assignments - no loops or complex count logic 94 | # NOTE: This module is only used when enable_managed_identities = true 95 | # NOTE: depends_on cluster ensures cluster is deleted FIRST during destroy (reverse dependency order) 96 | module "aro_managed_identity_permissions" { 97 | count = var.enable_managed_identities ? 1 : 0 98 | 99 | source = "./modules/aro-managed-identity-permissions" 100 | 101 | cluster_name = terraform_data.aro_permission_wait.output.cluster_name 102 | vnet = azurerm_virtual_network.main.name 103 | vnet_resource_group = azurerm_resource_group.main.name 104 | network_security_group = azurerm_network_security_group.aro.name 105 | 106 | aro_resource_group = { 107 | name = azurerm_resource_group.main.name 108 | create = false 109 | } 110 | 111 | # set custom permissions 112 | nat_gateways = [] 113 | subnets = [azurerm_subnet.control_plane_subnet.name, azurerm_subnet.machine_subnet.name] 114 | route_tables = var.restrict_egress_traffic ? [azurerm_route_table.firewall_rt[0].name] : [] 115 | 116 | # use custom roles with minimal permissions 117 | minimal_network_role = "${var.cluster_name}-network" 118 | 119 | # explicitly set location, subscription id and tenant id 120 | location = var.location 121 | subscription_id = data.azurerm_client_config.current.subscription_id 122 | tenant_id = data.azurerm_client_config.current.tenant_id 123 | 124 | # apply tags to all managed identities 125 | tags = var.tags 126 | 127 | enabled = true 128 | } 129 | 130 | # 131 | # NOTE: for whatever reason, in order for the installer provider to consume the password we create in the aro_permissions 132 | # module, we must sleep here and let things calm down first and pass it through a 'terraform_data' resource (it 133 | # fails the first time if attempting to use directly but succeeds when continuing to apply) 134 | # 135 | resource "time_sleep" "wait" { 136 | count = var.enable_managed_identities ? 0 : 1 137 | 138 | create_duration = "10s" 139 | 140 | depends_on = [module.aro_permissions[0]] 141 | } 142 | 143 | resource "terraform_data" "installer_credentials" { 144 | count = var.enable_managed_identities ? 0 : 1 145 | 146 | input = { 147 | client_id = module.aro_permissions[0].installer_service_principal_client_id 148 | client_secret = module.aro_permissions[0].installer_service_principal_client_secret 149 | } 150 | 151 | depends_on = [time_sleep.wait] 152 | } 153 | -------------------------------------------------------------------------------- /scripts/destroy-managed-identity.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | # Destroy ARO cluster with managed identities 3 | # This script ensures proper destroy order: cluster first, then remaining resources 4 | # Usage: destroy-managed-identity.sh [--auto-approve] 5 | 6 | set -e 7 | 8 | AUTO_APPROVE="-auto-approve" 9 | 10 | SUBSCRIPTION_ID=$(az account show --query id --output tsv) 11 | 12 | echo "Destroying ARO cluster resources (managed identity)..." 13 | echo "Step 1: Destroying cluster (if exists)..." 14 | 15 | if terraform state list 2>/dev/null | grep -q "azurerm_resource_group_template_deployment.cluster_managed_identity"; then 16 | # Try to destroy with Terraform first 17 | set +e # Temporarily disable exit on error to handle the known ARM template cleanup issue 18 | TERRAFORM_OUTPUT=$(terraform destroy -target=azurerm_resource_group_template_deployment.cluster_managed_identity \ 19 | -var "subscription_id=${SUBSCRIPTION_ID}" ${AUTO_APPROVE} 2>&1) 20 | TERRAFORM_EXIT=$? 21 | set -e # Re-enable exit on error 22 | 23 | # Check if it's the known OutputResources error 24 | if [ ${TERRAFORM_EXIT} -ne 0 ] && (echo "${TERRAFORM_OUTPUT}" | grep -q "OutputResources.*was nil\|insufficient data to clean up"); then 25 | echo "" 26 | echo "⚠ Warning: Terraform cannot clean up ARM template deployment (known limitation)" 27 | echo " Falling back to Azure CLI deletion..." 28 | 29 | # Get deployment details from state (more reliable than outputs) 30 | STATE_OUTPUT=$(terraform state show 'azurerm_resource_group_template_deployment.cluster_managed_identity[0]' 2>/dev/null || echo "") 31 | DEPLOYMENT_NAME=$(echo "${STATE_OUTPUT}" | grep -E '^\s+name\s+=' | awk '{print $3}' | tr -d '"' || echo "") 32 | RESOURCE_GROUP=$(echo "${STATE_OUTPUT}" | grep -E '^\s+resource_group_name\s+=' | awk '{print $3}' | tr -d '"' || echo "") 33 | 34 | if [ -z "${DEPLOYMENT_NAME}" ] || [ -z "${RESOURCE_GROUP}" ]; then 35 | echo " ⚠ Error: Could not determine deployment name/resource group from state" 36 | echo " Manual cleanup required. Try:" 37 | echo " terraform state list | grep cluster_managed_identity" 38 | echo " terraform state show " 39 | exit 1 40 | fi 41 | 42 | # Extract cluster name from deployment name (format: ${cluster_name}-managed-identity) 43 | CLUSTER_NAME=$(echo "${DEPLOYMENT_NAME}" | sed 's/-managed-identity$//' || echo "") 44 | 45 | # Check if cluster still exists and delete it first 46 | if [ -n "${CLUSTER_NAME}" ] && az aro show --name "${CLUSTER_NAME}" --resource-group "${RESOURCE_GROUP}" --output none 2>/dev/null; then 47 | echo " Deleting ARO cluster '${CLUSTER_NAME}' using Azure CLI..." 48 | set +e 49 | az aro delete \ 50 | --name "${CLUSTER_NAME}" \ 51 | --resource-group "${RESOURCE_GROUP}" \ 52 | --yes \ 53 | --no-wait 2>/dev/null 54 | set -e 55 | echo " Cluster deletion initiated, will wait for completion..." 56 | else 57 | echo " Cluster already deleted or doesn't exist (checking deployment only)" 58 | fi 59 | 60 | # Delete the deployment using Azure CLI 61 | echo " Deleting deployment '${DEPLOYMENT_NAME}' in resource group '${RESOURCE_GROUP}'..." 62 | set +e 63 | az deployment group delete \ 64 | --name "${DEPLOYMENT_NAME}" \ 65 | --resource-group "${RESOURCE_GROUP}" \ 66 | --no-wait 2>/dev/null 67 | DEPLOYMENT_DELETE_EXIT=$? 68 | set -e 69 | 70 | if [ ${DEPLOYMENT_DELETE_EXIT} -eq 0 ]; then 71 | echo " ✓ Deployment deletion initiated" 72 | else 73 | echo " ⚠ Warning: Deployment deletion command failed (may already be deleted)" 74 | fi 75 | 76 | # Wait a moment for deletion to start 77 | sleep 5 78 | 79 | # Remove from Terraform state 80 | echo " Removing deployment from Terraform state..." 81 | set +e 82 | terraform state rm 'azurerm_resource_group_template_deployment.cluster_managed_identity[0]' 2>/dev/null 83 | STATE_RM_EXIT=$? 84 | set -e 85 | 86 | if [ ${STATE_RM_EXIT} -eq 0 ]; then 87 | echo " ✓ Removed from Terraform state" 88 | else 89 | echo " ⚠ Warning: Could not remove from state (may already be removed)" 90 | fi 91 | elif [ ${TERRAFORM_EXIT} -ne 0 ]; then 92 | echo "⚠ Warning: Cluster destroy had errors, but continuing..." 93 | echo "${TERRAFORM_OUTPUT}" | tail -20 94 | fi 95 | 96 | echo "" 97 | echo "Waiting for cluster to be fully deleted (this may take several minutes)..." 98 | 99 | # Get cluster name and resource group (try from outputs first, fallback to state if needed) 100 | CLUSTER_NAME=$(terraform output -raw cluster_name 2>/dev/null || echo "") 101 | RESOURCE_GROUP=$(terraform output -raw resource_group_name 2>/dev/null || echo "") 102 | 103 | # If outputs are empty, try to get from state 104 | if [ -z "${CLUSTER_NAME}" ] || [ -z "${RESOURCE_GROUP}" ]; then 105 | STATE_OUTPUT=$(terraform state show 'azurerm_resource_group_template_deployment.cluster_managed_identity[0]' 2>/dev/null || echo "") 106 | if [ -n "${STATE_OUTPUT}" ]; then 107 | DEPLOYMENT_NAME=$(echo "${STATE_OUTPUT}" | grep -E '^\s+name\s+=' | awk '{print $3}' | tr -d '"' || echo "") 108 | RESOURCE_GROUP=$(echo "${STATE_OUTPUT}" | grep -E '^\s+resource_group_name\s+=' | awk '{print $3}' | tr -d '"' || echo "") 109 | CLUSTER_NAME=$(echo "${DEPLOYMENT_NAME}" | sed 's/-managed-identity$//' || echo "") 110 | fi 111 | fi 112 | 113 | if [ -n "${CLUSTER_NAME}" ] && [ -n "${RESOURCE_GROUP}" ]; then 114 | MAX_WAIT=600 115 | WAITED=0 116 | while [ ${WAITED} -lt ${MAX_WAIT} ]; do 117 | if ! az aro show --name "${CLUSTER_NAME}" --resource-group "${RESOURCE_GROUP}" --output none 2>/dev/null; then 118 | echo "✓ Cluster confirmed deleted" 119 | break 120 | fi 121 | echo " Waiting for cluster deletion... (${WAITED}/${MAX_WAIT} seconds)" 122 | sleep 10 123 | WAITED=$((WAITED + 10)) 124 | done 125 | 126 | if [ ${WAITED} -ge ${MAX_WAIT} ]; then 127 | echo "⚠ Warning: Cluster deletion check timed out after ${MAX_WAIT} seconds" 128 | echo " Proceeding with caution - cluster may still be deleting" 129 | fi 130 | else 131 | echo "⚠ Warning: Could not determine cluster name/resource group from outputs" 132 | echo " Waiting 60 seconds as safety buffer..." 133 | sleep 60 134 | fi 135 | else 136 | echo "No managed identity cluster found in state, skipping cluster destroy" 137 | fi 138 | 139 | echo "Step 2: Destroying all remaining resources (managed identities, networks, etc.)..." 140 | terraform destroy -var "subscription_id=${SUBSCRIPTION_ID}" ${AUTO_APPROVE} 141 | -------------------------------------------------------------------------------- /11-egress.tf: -------------------------------------------------------------------------------- 1 | # Restrict Egress Traffic in a Private ARO Cluster 2 | # For enable restrict_egress_traffic define restrict_egress_traffic = "true" in the tfvars / vars 3 | 4 | # The Azure FW will be into the ARO subnet following the architecture 5 | # defined in the official docs https://learn.microsoft.com/en-us/azure/openshift/howto-restrict-egress#create-an-azure-firewall 6 | 7 | # TODO: Architecture enhancement - Hub-Spoke model 8 | # Current: Single VNet architecture (simplified for example/demo use) 9 | # Future: Consider converting to hub-spoke model with separate VNets 10 | # Rationale: Hub-spoke provides better network isolation and scalability 11 | # Note: This is documented as a non-goal in DESIGN.md - not planned for current scope 12 | # Reference: DESIGN.md "Non-Goals" section 13 | resource "azurerm_subnet" "firewall_subnet" { 14 | count = var.restrict_egress_traffic ? 1 : 0 15 | name = "AzureFirewallSubnet" 16 | resource_group_name = azurerm_resource_group.main.name 17 | virtual_network_name = azurerm_virtual_network.main.name 18 | address_prefixes = [var.aro_firewall_subnet_cidr_block] 19 | service_endpoints = ["Microsoft.Storage", "Microsoft.ContainerRegistry"] 20 | } 21 | 22 | resource "azurerm_public_ip" "firewall_ip" { 23 | count = var.restrict_egress_traffic ? 1 : 0 24 | name = "${local.name_prefix}-fw-ip" 25 | location = azurerm_resource_group.main.location 26 | resource_group_name = azurerm_resource_group.main.name 27 | allocation_method = "Static" 28 | sku = "Standard" 29 | tags = var.tags 30 | 31 | } 32 | 33 | resource "azurerm_firewall" "firewall" { 34 | count = var.restrict_egress_traffic ? 1 : 0 35 | name = "${local.name_prefix}-firewall" 36 | location = azurerm_resource_group.main.location 37 | resource_group_name = azurerm_resource_group.main.name 38 | sku_name = "AZFW_VNet" 39 | sku_tier = "Standard" 40 | 41 | ip_configuration { 42 | name = "${local.name_prefix}-fw-ip-config" 43 | subnet_id = azurerm_subnet.firewall_subnet[0].id 44 | public_ip_address_id = azurerm_public_ip.firewall_ip[0].id 45 | } 46 | 47 | } 48 | 49 | resource "azurerm_route_table" "firewall_rt" { 50 | count = var.restrict_egress_traffic ? 1 : 0 51 | name = "${local.name_prefix}-fw-rt" 52 | location = azurerm_resource_group.main.location 53 | resource_group_name = azurerm_resource_group.main.name 54 | 55 | # ARO User Define Routing Route 56 | route { 57 | name = "${local.name_prefix}-udr" 58 | address_prefix = "0.0.0.0/0" 59 | next_hop_type = "VirtualAppliance" 60 | next_hop_in_ip_address = azurerm_firewall.firewall[0].ip_configuration[0].private_ip_address 61 | } 62 | 63 | tags = var.tags 64 | 65 | } 66 | 67 | # TODO: Security hardening - Restrict firewall network rules 68 | # Current: Permissive firewall rules allow all traffic from any source to any destination 69 | # For production: Implement specific network rules with restricted source/destination addresses 70 | # Rationale: Current permissive rules prioritize usability for examples/demos 71 | # Production hardening: Define specific allowed destinations and restrict source addresses 72 | # See DESIGN.md "Production Hardening Required" section for details 73 | resource "azurerm_firewall_network_rule_collection" "firewall_network_rules" { 74 | count = var.restrict_egress_traffic ? 1 : 0 75 | name = "allow-https" 76 | azure_firewall_name = azurerm_firewall.firewall[0].name 77 | resource_group_name = azurerm_resource_group.main.name 78 | priority = 100 79 | action = "Allow" 80 | 81 | rule { 82 | name = "allow-all" 83 | source_addresses = [ 84 | "*", 85 | ] 86 | destination_addresses = [ 87 | "*" 88 | ] 89 | protocols = [ 90 | "Any" 91 | ] 92 | destination_ports = [ 93 | "1-65535", 94 | ] 95 | } 96 | } 97 | 98 | 99 | resource "azurerm_firewall_application_rule_collection" "firewall_app_rules_aro" { 100 | count = var.restrict_egress_traffic ? 1 : 0 101 | name = "ARO" 102 | azure_firewall_name = azurerm_firewall.firewall[0].name 103 | resource_group_name = azurerm_resource_group.main.name 104 | priority = 101 105 | action = "Allow" 106 | 107 | rule { 108 | name = "required" 109 | source_addresses = [ 110 | "*", 111 | ] 112 | target_fqdns = [ 113 | "cert-api.access.redhat.com", 114 | "api.openshift.com", 115 | "api.access.redhat.com", 116 | "infogw.api.openshift.com", 117 | "registry.redhat.io", 118 | "access.redhat.com", 119 | "*.quay.io", 120 | "sso.redhat.com", 121 | "*.openshiftapps.com", 122 | "mirror.openshift.com", 123 | "registry.access.redhat.com", 124 | "*.redhat.com", 125 | "*.openshift.com", 126 | "*.microsoft.com" 127 | ] 128 | protocol { 129 | port = "443" 130 | type = "Https" 131 | } 132 | protocol { 133 | port = "80" 134 | type = "Http" 135 | } 136 | } 137 | 138 | rule { 139 | name = "azurespecific" 140 | source_addresses = [ 141 | "*", 142 | ] 143 | target_fqdns = [ 144 | "*.azurecr.io", 145 | "*.azure.com", 146 | "login.microsoftonline.com", 147 | "*.windows.net", 148 | "dc.services.visualstudio.com", 149 | "*.ods.opinsights.azure.com", 150 | "*.oms.opinsights.azure.com", 151 | "*.monitoring.azure.com", 152 | "*.azure.cn" 153 | ] 154 | protocol { 155 | port = "443" 156 | type = "Https" 157 | } 158 | protocol { 159 | port = "80" 160 | type = "Http" 161 | } 162 | } 163 | 164 | } 165 | 166 | 167 | resource "azurerm_firewall_application_rule_collection" "firewall_app_rules_docker" { 168 | count = var.restrict_egress_traffic ? 1 : 0 169 | name = "Docker" 170 | azure_firewall_name = azurerm_firewall.firewall[0].name 171 | resource_group_name = azurerm_resource_group.main.name 172 | priority = 200 173 | action = "Allow" 174 | 175 | rule { 176 | name = "docker" 177 | source_addresses = [ 178 | "*", 179 | ] 180 | target_fqdns = [ 181 | "*cloudflare.docker.com", 182 | "*registry-1.docker.io", 183 | "apt.dockerproject.org", 184 | "auth.docker.io" 185 | ] 186 | protocol { 187 | port = "443" 188 | type = "Https" 189 | } 190 | protocol { 191 | port = "80" 192 | type = "Http" 193 | } 194 | } 195 | } 196 | 197 | resource "azurerm_subnet_route_table_association" "firewall_rt_aro_cp_subnet_association" { 198 | count = var.restrict_egress_traffic ? 1 : 0 199 | subnet_id = azurerm_subnet.control_plane_subnet.id 200 | route_table_id = azurerm_route_table.firewall_rt[0].id 201 | } 202 | 203 | resource "azurerm_subnet_route_table_association" "firewall_rt_aro_machine_subnet_association" { 204 | count = var.restrict_egress_traffic ? 1 : 0 205 | subnet_id = azurerm_subnet.machine_subnet.id 206 | route_table_id = azurerm_route_table.firewall_rt[0].id 207 | } 208 | -------------------------------------------------------------------------------- /modules/aro-permissions/01-variables.tf: -------------------------------------------------------------------------------- 1 | variable "cluster_name" { 2 | type = string 3 | description = "Name of the cluster to setup permissions for." 4 | } 5 | 6 | # NOTE: if using Terraform or other automation tool, use 'api' as the installation type. 7 | variable "installation_type" { 8 | type = string 9 | default = "cli" 10 | description = "The installation type that will be used to create the ARO cluster. One of: [api, cli]" 11 | 12 | validation { 13 | condition = contains(["api", "cli"], var.installation_type) 14 | error_message = "'installation_type' must be one of: ['api', 'cli']." 15 | } 16 | } 17 | 18 | # 19 | # service principals and users 20 | # 21 | variable "cluster_service_principal" { 22 | type = object({ 23 | name = string 24 | create = bool 25 | }) 26 | default = { 27 | name = null 28 | create = true 29 | } 30 | description = "Cluster Service Principal to use or optionally create. If name is unset, the cluster_name is used to derive a name." 31 | } 32 | 33 | variable "installer_service_principal" { 34 | type = object({ 35 | name = string 36 | create = bool 37 | }) 38 | default = { 39 | name = null 40 | create = true 41 | } 42 | description = "Installer Service Principal to use or optionally create. If name is unset, the cluster_name is used to derive a name. Overridden if an 'installer_user_name' is specified." 43 | } 44 | 45 | variable "resource_provider_service_principal_name" { 46 | type = string 47 | default = "Azure Red Hat OpenShift RP" 48 | description = "ARO Resource Provider Service Principal name. This will not change unless you are testing development use cases." 49 | } 50 | 51 | variable "installer_user" { 52 | type = string 53 | default = "" 54 | description = "User who will be executing the installation (e.g. via az aro create). This overrides the 'installer_service_principal'. Must be in UPN format (e.g. jdoe@example.com)." 55 | } 56 | 57 | # 58 | # objects 59 | # 60 | variable "aro_resource_group" { 61 | type = object({ 62 | name = string 63 | create = bool 64 | }) 65 | description = "ARO resource group to use or optionally create." 66 | } 67 | 68 | variable "vnet" { 69 | type = string 70 | description = "VNET where ARO will be deployed into." 71 | } 72 | 73 | variable "vnet_resource_group" { 74 | type = string 75 | default = null 76 | description = "Resource Group where the VNET resides. If unspecified, defaults to 'aro_resource_group.name'." 77 | } 78 | 79 | variable "managed_resource_group" { 80 | type = string 81 | default = null 82 | description = "Resource Group where the ARO object (managed resource group) resides." 83 | } 84 | 85 | variable "subnets" { 86 | type = list(string) 87 | description = "Names of subnets used that belong to the 'vnet' variable. Must be a child of the 'vnet'." 88 | } 89 | 90 | variable "route_tables" { 91 | type = list(string) 92 | default = [] 93 | description = "Names of route tables for user-defined routing. Route tables are assumed to exist in 'vnet_resource_group'." 94 | } 95 | 96 | variable "nat_gateways" { 97 | type = list(string) 98 | default = [] 99 | description = "Names of NAT gateways for user-defined routing. NAT gateways are assumed to exist in 'vnet_resource_group'." 100 | } 101 | 102 | variable "network_security_group" { 103 | type = string 104 | default = null 105 | description = "Network security group used in a BYO-NSG scenario." 106 | } 107 | 108 | variable "disk_encryption_set" { 109 | type = string 110 | default = null 111 | description = "Disk encryption set to use. If specified, a role is created for allowing read access to the specified disk encryption set. Must exist in 'aro_resource_group.name'." 112 | } 113 | 114 | # 115 | # roles 116 | # 117 | variable "minimal_network_role" { 118 | type = string 119 | default = null 120 | description = "Role to manage to substitute for full 'Network Contributor' on network objects. If specified, this is created, otherwise 'Network Contributor' is used. For objects such as NSGs, route tables, and NAT gateways, this is used as a prefix for the role." 121 | } 122 | 123 | variable "minimal_aro_role" { 124 | type = string 125 | default = null 126 | description = "Role to manage to substitute for full 'Contributor' on the ARO resource group. If specified, this is created, otherwise 'Contributor' is used. For objects such as disk encryption sets, this is used as a prefix for the role." 127 | } 128 | 129 | # 130 | # policy 131 | # 132 | variable "apply_network_policies_to_all" { 133 | type = bool 134 | default = false 135 | description = "Apply policies irrespective of object name. This is helpful when you want to ensure all permissions are denied, irrespective of individual objects. This is normal in scenarios where network objects are not grouped together (e.g. one VNET in a resource group) and there is no risk for denying something that may cause issues." 136 | } 137 | 138 | variable "apply_vnet_policy" { 139 | type = bool 140 | default = false 141 | description = "Apply Azure Policy to further restrict VNET permissions beyond what the role provides." 142 | } 143 | 144 | variable "apply_subnet_policy" { 145 | type = bool 146 | default = false 147 | description = "Apply Azure Policy to further restrict subnet permissions beyond what the role provides." 148 | } 149 | 150 | variable "apply_route_table_policy" { 151 | type = bool 152 | default = false 153 | description = "Apply Azure Policy to further restrict route table permissions beyond what the role provides." 154 | } 155 | 156 | variable "apply_nat_gateway_policy" { 157 | type = bool 158 | default = false 159 | description = "Apply Azure Policy to further restrict NAT gateway permissions beyond what the role provides." 160 | } 161 | 162 | variable "apply_nsg_policy" { 163 | type = bool 164 | default = false 165 | description = "Apply Azure Policy to further restrict NSG permissions beyond what the role provides." 166 | } 167 | 168 | variable "apply_dns_policy" { 169 | type = bool 170 | default = false 171 | description = "Apply Azure Policy to further restrict DNS permissions beyond what the role provides. Must also specify 'var.managed_resource_group' to apply." 172 | } 173 | 174 | variable "apply_private_dns_policy" { 175 | type = bool 176 | default = false 177 | description = "Apply Azure Policy to further restrict DNS permissions beyond what the role provides. Must also specify 'var.managed_resource_group' to apply." 178 | } 179 | 180 | variable "apply_public_ip_policy" { 181 | type = bool 182 | default = false 183 | description = "Apply Azure Policy to further restrict Public IP permissions beyond what the role provides. Must also specify 'var.managed_resource_group' to apply." 184 | } 185 | 186 | # 187 | # azure variables 188 | # 189 | variable "environment" { 190 | type = string 191 | default = "public" 192 | description = "Explicitly use a specific Azure environment. One of: [public, usgovernment, dod]." 193 | 194 | validation { 195 | condition = contains(["public", "usgovernment", "dod"], var.environment) 196 | error_message = "'environment' must be one of: ['public', 'usgovernment', 'dod']." 197 | } 198 | } 199 | 200 | variable "subscription_id" { 201 | type = string 202 | description = "Explicitly use a specific Azure subscription id (defaults to the current system configuration)." 203 | } 204 | 205 | variable "tenant_id" { 206 | type = string 207 | description = "Explicitly use a specific Azure tenant id (defaults to the current system configuration)." 208 | } 209 | 210 | variable "location" { 211 | type = string 212 | default = "eastus" 213 | description = "Azure region where region-specific objects exist or are to be created." 214 | } 215 | 216 | # 217 | # other variables 218 | # 219 | variable "output_as_file" { 220 | type = bool 221 | default = true 222 | description = "Output created service principal client identifier and client secret into a source file." 223 | } 224 | -------------------------------------------------------------------------------- /50-cluster.tf: -------------------------------------------------------------------------------- 1 | 2 | ## ARO Cluster 3 | 4 | # See docs at https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/redhat_openshift_cluster 5 | 6 | resource "random_string" "domain" { 7 | length = 8 8 | special = false 9 | upper = false 10 | numeric = false 11 | } 12 | 13 | # ARO Cluster - Service Principal deployment (when managed identities are disabled) 14 | # NOTE: Destroy order: Cluster must be deleted BEFORE modules (managed identities/service principals) 15 | # Terraform handles this automatically via implicit dependencies, but if destroy fails, 16 | # manually delete cluster first: terraform destroy -target=azurerm_redhat_openshift_cluster.cluster 17 | resource "azurerm_redhat_openshift_cluster" "cluster" { 18 | count = var.enable_managed_identities ? 0 : 1 19 | 20 | # NOTE: use the installer service principal that we created to create our cluster 21 | provider = azurerm.installer 22 | 23 | name = var.cluster_name 24 | location = azurerm_resource_group.main.location 25 | resource_group_name = azurerm_resource_group.main.name 26 | tags = var.tags 27 | 28 | lifecycle { 29 | # Ensure cluster is replaced before dependent resources during updates 30 | create_before_destroy = false 31 | } 32 | 33 | cluster_profile { 34 | domain = local.domain 35 | pull_secret = local.pull_secret 36 | version = local.aro_version 37 | 38 | managed_resource_group_name = "${azurerm_resource_group.main.name}-managed" 39 | } 40 | 41 | main_profile { 42 | vm_size = var.main_vm_size 43 | subnet_id = azurerm_subnet.control_plane_subnet.id 44 | } 45 | 46 | worker_profile { 47 | subnet_id = azurerm_subnet.machine_subnet.id 48 | disk_size_gb = var.worker_disk_size_gb 49 | node_count = var.worker_node_count 50 | vm_size = var.worker_vm_size 51 | } 52 | 53 | network_profile { 54 | outbound_type = var.outbound_type 55 | pod_cidr = var.aro_pod_cidr_block 56 | service_cidr = var.aro_service_cidr_block 57 | 58 | preconfigured_network_security_group_enabled = true 59 | } 60 | 61 | api_server_profile { 62 | visibility = var.api_server_profile 63 | } 64 | 65 | ingress_profile { 66 | visibility = var.ingress_profile 67 | } 68 | 69 | service_principal { 70 | client_id = module.aro_permissions[0].cluster_service_principal_client_id 71 | client_secret = module.aro_permissions[0].cluster_service_principal_client_secret 72 | } 73 | 74 | # Note: No explicit depends_on for modules - implicit dependency via service_principal block above 75 | # Destroy order is managed via terraform_data.cluster_destroy_guard_sp in 20-iam.tf 76 | depends_on = [ 77 | azurerm_firewall_network_rule_collection.firewall_network_rules, 78 | ] 79 | } 80 | 81 | # ARO Cluster - Managed Identity deployment (preview feature) 82 | # Uses ARM template because azurerm_redhat_openshift_cluster doesn't yet support managed identities 83 | # NOTE: Destroy order: Cluster must be deleted BEFORE modules (managed identities) 84 | # Terraform handles this automatically via implicit dependencies, but if destroy fails, 85 | # manually delete cluster first: terraform destroy -target=azurerm_resource_group_template_deployment.cluster_managed_identity 86 | resource "azurerm_resource_group_template_deployment" "cluster_managed_identity" { 87 | count = var.enable_managed_identities ? 1 : 0 88 | 89 | name = "${var.cluster_name}-managed-identity" 90 | resource_group_name = azurerm_resource_group.main.name 91 | deployment_mode = "Incremental" 92 | template_content = file("${path.module}/templates/aro-cluster-managed-identity.json") 93 | 94 | parameters_content = jsonencode({ 95 | clusterName = { 96 | value = var.cluster_name 97 | } 98 | location = { 99 | value = azurerm_resource_group.main.location 100 | } 101 | resourceGroupName = { 102 | value = azurerm_resource_group.main.name 103 | } 104 | managedResourceGroupName = { 105 | value = "${azurerm_resource_group.main.name}-managed" 106 | } 107 | domain = { 108 | value = local.domain 109 | } 110 | pullSecret = { 111 | value = local.pull_secret != null ? local.pull_secret : "" 112 | } 113 | version = { 114 | value = local.aro_version 115 | } 116 | podCidr = { 117 | value = var.aro_pod_cidr_block 118 | } 119 | serviceCidr = { 120 | value = var.aro_service_cidr_block 121 | } 122 | masterVmSize = { 123 | value = var.main_vm_size 124 | } 125 | masterSubnetId = { 126 | value = azurerm_subnet.control_plane_subnet.id 127 | } 128 | workerVmSize = { 129 | value = var.worker_vm_size 130 | } 131 | workerDiskSizeGB = { 132 | value = var.worker_disk_size_gb 133 | } 134 | workerNodeCount = { 135 | value = var.worker_node_count 136 | } 137 | workerSubnetId = { 138 | value = azurerm_subnet.machine_subnet.id 139 | } 140 | apiServerVisibility = { 141 | value = var.api_server_profile 142 | } 143 | ingressVisibility = { 144 | value = var.ingress_profile 145 | } 146 | outboundType = { 147 | value = var.outbound_type 148 | } 149 | managedIdentityAroServiceId = { 150 | value = local.managed_identity_ids["aro-service"] 151 | } 152 | managedIdentityCloudControllerManagerId = { 153 | value = local.managed_identity_ids["cloud-controller-manager"] 154 | } 155 | managedIdentityCloudNetworkConfigId = { 156 | value = local.managed_identity_ids["cloud-network-config"] 157 | } 158 | managedIdentityClusterId = { 159 | value = local.managed_identity_ids["cluster"] 160 | } 161 | managedIdentityDiskCsiDriverId = { 162 | value = local.managed_identity_ids["disk-csi-driver"] 163 | } 164 | managedIdentityFileCsiDriverId = { 165 | value = local.managed_identity_ids["file-csi-driver"] 166 | } 167 | managedIdentityImageRegistryId = { 168 | value = local.managed_identity_ids["image-registry"] 169 | } 170 | managedIdentityIngressId = { 171 | value = local.managed_identity_ids["ingress"] 172 | } 173 | managedIdentityMachineApiId = { 174 | value = local.managed_identity_ids["machine-api"] 175 | } 176 | managedIdentityAroServicePrincipalId = { 177 | value = local.managed_identity_principal_ids["aro-service"] 178 | } 179 | managedIdentityCloudControllerManagerPrincipalId = { 180 | value = local.managed_identity_principal_ids["cloud-controller-manager"] 181 | } 182 | managedIdentityCloudNetworkConfigPrincipalId = { 183 | value = local.managed_identity_principal_ids["cloud-network-config"] 184 | } 185 | managedIdentityDiskCsiDriverPrincipalId = { 186 | value = local.managed_identity_principal_ids["disk-csi-driver"] 187 | } 188 | managedIdentityFileCsiDriverPrincipalId = { 189 | value = local.managed_identity_principal_ids["file-csi-driver"] 190 | } 191 | managedIdentityImageRegistryPrincipalId = { 192 | value = local.managed_identity_principal_ids["image-registry"] 193 | } 194 | managedIdentityIngressPrincipalId = { 195 | value = local.managed_identity_principal_ids["ingress"] 196 | } 197 | managedIdentityMachineApiPrincipalId = { 198 | value = local.managed_identity_principal_ids["machine-api"] 199 | } 200 | tags = { 201 | value = var.tags 202 | } 203 | }) 204 | 205 | # Note: No explicit depends_on for modules - implicit dependency via managed_identity_ids in parameters 206 | # Destroy order is managed via terraform_data.cluster_destroy_guard_mi in 20-iam.tf 207 | depends_on = [ 208 | azurerm_firewall_network_rule_collection.firewall_network_rules, 209 | ] 210 | 211 | lifecycle { 212 | # Ensure cluster is replaced before dependent resources during updates 213 | create_before_destroy = false 214 | # Ignore changes to parameters_content to prevent updates that trigger immutable property errors 215 | # Tags and other properties can be updated directly via Azure CLI if needed 216 | # This prevents Terraform from trying to update resourceGroupId which is immutable 217 | ignore_changes = [parameters_content] 218 | } 219 | } 220 | -------------------------------------------------------------------------------- /modules/aro-managed-identity-permissions/script.sh: -------------------------------------------------------------------------------- 1 | SUBSCRIPTION_ID=$(az account show --query 'id' -o tsv) 2 | 3 | # assign cluster identity permissions over identities previously created 4 | 5 | az role assignment create --assignee-object-id "$(az identity show --resource-group $RESOURCEGROUP --name aro-cluster --query principalId -o tsv)" --assignee-principal-type ServicePrincipal --role "/subscriptions/$SUBSCRIPTION_ID/providers/Microsoft.Authorization/roleDefinitions/ef318e2a-8334-4a05-9e4a-295a196c6a6e" --scope "/subscriptions/$SUBSCRIPTION_ID/resourcegroups/$RESOURCEGROUP/providers/Microsoft.ManagedIdentity/userAssignedIdentities/aro-operator" 6 | 7 | az role assignment create --assignee-object-id "$(az identity show --resource-group $RESOURCEGROUP --name aro-cluster --query principalId -o tsv)" --assignee-principal-type ServicePrincipal --role "/subscriptions/$SUBSCRIPTION_ID/providers/Microsoft.Authorization/roleDefinitions/ef318e2a-8334-4a05-9e4a-295a196c6a6e" --scope "/subscriptions/$SUBSCRIPTION_ID/resourcegroups/$RESOURCEGROUP/providers/Microsoft.ManagedIdentity/userAssignedIdentities/cloud-controller-manager" 8 | 9 | az role assignment create --assignee-object-id "$(az identity show --resource-group $RESOURCEGROUP --name aro-cluster --query principalId -o tsv)" --assignee-principal-type ServicePrincipal --role "/subscriptions/$SUBSCRIPTION_ID/providers/Microsoft.Authorization/roleDefinitions/ef318e2a-8334-4a05-9e4a-295a196c6a6e" --scope "/subscriptions/$SUBSCRIPTION_ID/resourcegroups/$RESOURCEGROUP/providers/Microsoft.ManagedIdentity/userAssignedIdentities/ingress" 10 | 11 | az role assignment create --assignee-object-id "$(az identity show --resource-group $RESOURCEGROUP --name aro-cluster --query principalId -o tsv)" --assignee-principal-type ServicePrincipal --role "/subscriptions/$SUBSCRIPTION_ID/providers/Microsoft.Authorization/roleDefinitions/ef318e2a-8334-4a05-9e4a-295a196c6a6e" --scope "/subscriptions/$SUBSCRIPTION_ID/resourcegroups/$RESOURCEGROUP/providers/Microsoft.ManagedIdentity/userAssignedIdentities/machine-api" 12 | 13 | az role assignment create --assignee-object-id "$(az identity show --resource-group $RESOURCEGROUP --name aro-cluster --query principalId -o tsv)" --assignee-principal-type ServicePrincipal --role "/subscriptions/$SUBSCRIPTION_ID/providers/Microsoft.Authorization/roleDefinitions/ef318e2a-8334-4a05-9e4a-295a196c6a6e" --scope "/subscriptions/$SUBSCRIPTION_ID/resourcegroups/$RESOURCEGROUP/providers/Microsoft.ManagedIdentity/userAssignedIdentities/disk-csi-driver" 14 | 15 | az role assignment create --assignee-object-id "$(az identity show --resource-group $RESOURCEGROUP --name aro-cluster --query principalId -o tsv)" --assignee-principal-type ServicePrincipal --role "/subscriptions/$SUBSCRIPTION_ID/providers/Microsoft.Authorization/roleDefinitions/ef318e2a-8334-4a05-9e4a-295a196c6a6e" --scope "/subscriptions/$SUBSCRIPTION_ID/resourcegroups/$RESOURCEGROUP/providers/Microsoft.ManagedIdentity/userAssignedIdentities/cloud-network-config" 16 | 17 | az role assignment create --assignee-object-id "$(az identity show --resource-group $RESOURCEGROUP --name aro-cluster --query principalId -o tsv)" --assignee-principal-type ServicePrincipal --role "/subscriptions/$SUBSCRIPTION_ID/providers/Microsoft.Authorization/roleDefinitions/ef318e2a-8334-4a05-9e4a-295a196c6a6e" --scope "/subscriptions/$SUBSCRIPTION_ID/resourcegroups/$RESOURCEGROUP/providers/Microsoft.ManagedIdentity/userAssignedIdentities/image-registry" 18 | 19 | az role assignment create --assignee-object-id "$(az identity show --resource-group $RESOURCEGROUP --name aro-cluster --query principalId -o tsv)" --assignee-principal-type ServicePrincipal --role "/subscriptions/$SUBSCRIPTION_ID/providers/Microsoft.Authorization/roleDefinitions/ef318e2a-8334-4a05-9e4a-295a196c6a6e" --scope "/subscriptions/$SUBSCRIPTION_ID/resourcegroups/$RESOURCEGROUP/providers/Microsoft.ManagedIdentity/userAssignedIdentities/file-csi-driver" 20 | 21 | # assign vnet-level permissions for operators that require it, and subnets-level permission for operators that require it 22 | 23 | az role assignment create --assignee-object-id "$(az identity show --resource-group $RESOURCEGROUP --name cloud-controller-manager --query principalId -o tsv)" --assignee-principal-type ServicePrincipal --role "/subscriptions/$SUBSCRIPTION_ID/providers/Microsoft.Authorization/roleDefinitions/a1f96423-95ce-4224-ab27-4e3dc72facd4" --scope "/subscriptions/$SUBSCRIPTION_ID/resourceGroups/$RESOURCEGROUP/providers/Microsoft.Network/virtualNetworks/aro-vnet/subnets/master" 24 | 25 | az role assignment create --assignee-object-id "$(az identity show --resource-group $RESOURCEGROUP --name cloud-controller-manager --query principalId -o tsv)" --assignee-principal-type ServicePrincipal --role "/subscriptions/$SUBSCRIPTION_ID/providers/Microsoft.Authorization/roleDefinitions/a1f96423-95ce-4224-ab27-4e3dc72facd4" --scope "/subscriptions/$SUBSCRIPTION_ID/resourceGroups/$RESOURCEGROUP/providers/Microsoft.Network/virtualNetworks/aro-vnet/subnets/worker" 26 | 27 | az role assignment create --assignee-object-id "$(az identity show --resource-group $RESOURCEGROUP --name ingress --query principalId -o tsv)" --assignee-principal-type ServicePrincipal --role "/subscriptions/$SUBSCRIPTION_ID/providers/Microsoft.Authorization/roleDefinitions/0336e1d3-7a87-462b-b6db-342b63f7802c" --scope "/subscriptions/$SUBSCRIPTION_ID/resourceGroups/$RESOURCEGROUP/providers/Microsoft.Network/virtualNetworks/aro-vnet/subnets/master" 28 | 29 | az role assignment create --assignee-object-id "$(az identity show --resource-group $RESOURCEGROUP --name ingress --query principalId -o tsv)" --assignee-principal-type ServicePrincipal --role "/subscriptions/$SUBSCRIPTION_ID/providers/Microsoft.Authorization/roleDefinitions/0336e1d3-7a87-462b-b6db-342b63f7802c" --scope "/subscriptions/$SUBSCRIPTION_ID/resourceGroups/$RESOURCEGROUP/providers/Microsoft.Network/virtualNetworks/aro-vnet/subnets/worker" 30 | 31 | az role assignment create --assignee-object-id "$(az identity show --resource-group $RESOURCEGROUP --name machine-api --query principalId -o tsv)" --assignee-principal-type ServicePrincipal --role "/subscriptions/$SUBSCRIPTION_ID/providers/Microsoft.Authorization/roleDefinitions/0358943c-7e01-48ba-8889-02cc51d78637" --scope "/subscriptions/$SUBSCRIPTION_ID/resourceGroups/$RESOURCEGROUP/providers/Microsoft.Network/virtualNetworks/aro-vnet/subnets/master" 32 | 33 | az role assignment create --assignee-object-id "$(az identity show --resource-group $RESOURCEGROUP --name machine-api --query principalId -o tsv)" --assignee-principal-type ServicePrincipal --role "/subscriptions/$SUBSCRIPTION_ID/providers/Microsoft.Authorization/roleDefinitions/0358943c-7e01-48ba-8889-02cc51d78637" --scope "/subscriptions/$SUBSCRIPTION_ID/resourceGroups/$RESOURCEGROUP/providers/Microsoft.Network/virtualNetworks/aro-vnet/subnets/worker" 34 | 35 | az role assignment create --assignee-object-id "$(az identity show --resource-group $RESOURCEGROUP --name cloud-network-config --query principalId -o tsv)" --assignee-principal-type ServicePrincipal --role "/subscriptions/$SUBSCRIPTION_ID/providers/Microsoft.Authorization/roleDefinitions/be7a6435-15ae-4171-8f30-4a343eff9e8f" --scope "/subscriptions/$SUBSCRIPTION_ID/resourceGroups/$RESOURCEGROUP/providers/Microsoft.Network/virtualNetworks/aro-vnet" 36 | 37 | az role assignment create --assignee-object-id "$(az identity show --resource-group $RESOURCEGROUP --name file-csi-driver --query principalId -o tsv)" --assignee-principal-type ServicePrincipal --role "/subscriptions/$SUBSCRIPTION_ID/providers/Microsoft.Authorization/roleDefinitions/0d7aedc0-15fd-4a67-a412-efad370c947e" --scope "/subscriptions/$SUBSCRIPTION_ID/resourceGroups/$RESOURCEGROUP/providers/Microsoft.Network/virtualNetworks/aro-vnet" 38 | 39 | az role assignment create --assignee-object-id "$(az identity show --resource-group $RESOURCEGROUP --name image-registry --query principalId -o tsv)" --assignee-principal-type ServicePrincipal --role "/subscriptions/$SUBSCRIPTION_ID/providers/Microsoft.Authorization/roleDefinitions/8b32b316-c2f5-4ddf-b05b-83dacd2d08b5" --scope "/subscriptions/$SUBSCRIPTION_ID/resourceGroups/$RESOURCEGROUP/providers/Microsoft.Network/virtualNetworks/aro-vnet" 40 | 41 | az role assignment create --assignee-object-id "$(az identity show --resource-group $RESOURCEGROUP --name aro-operator --query principalId -o tsv)" --assignee-principal-type ServicePrincipal --role "/subscriptions/$SUBSCRIPTION_ID/providers/Microsoft.Authorization/roleDefinitions/4436bae4-7702-4c84-919b-c4069ff25ee2" --scope "/subscriptions/$SUBSCRIPTION_ID/resourceGroups/$RESOURCEGROUP/providers/Microsoft.Network/virtualNetworks/aro-vnet/subnets/master" 42 | 43 | az role assignment create --assignee-object-id "$(az identity show --resource-group $RESOURCEGROUP --name aro-operator --query principalId -o tsv)" --assignee-principal-type ServicePrincipal --role "/subscriptions/$SUBSCRIPTION_ID/providers/Microsoft.Authorization/roleDefinitions/4436bae4-7702-4c84-919b-c4069ff25ee2" --scope "/subscriptions/$SUBSCRIPTION_ID/resourceGroups/$RESOURCEGROUP/providers/Microsoft.Network/virtualNetworks/aro-vnet/subnets/worker" 44 | 45 | az role assignment create --assignee-object-id "$(az ad sp list --display-name "Azure Red Hat OpenShift RP" --query '[0].id' -o tsv)" --assignee-principal-type ServicePrincipal --role "/subscriptions/$SUBSCRIPTION_ID/providers/Microsoft.Authorization/roleDefinitions/4d97b98b-1d4f-4787-a291-c67834d212e7" --scope "/subscriptions/$SUBSCRIPTION_ID/resourceGroups/$RESOURCEGROUP/providers/Microsoft.Network/virtualNetworks/aro-vnet" -------------------------------------------------------------------------------- /PLAN.md: -------------------------------------------------------------------------------- 1 | # Project Implementation Plan 2 | 3 | **Project:** Terraform ARO Cluster Deployment 4 | **Version:** 1.0.0 5 | **Last Updated:** 2024-12-01 6 | 7 | Keep this file updated as work progresses. Reference this file to understand current work and next steps. 8 | 9 | ## Current Focus 10 | 11 | **Task:** MOBB RULES adoption - Gap analysis implementation 12 | **Started:** 2024-12-01 13 | **Status:** Completed 14 | 15 | ## Next Steps 16 | 17 | 1. **Continue applying MOBB RULES to new code** (Task #8) 18 | - ✅ Gap analysis completed - 7 gaps identified 19 | - ✅ All gap analysis tasks completed (Tasks #12-18) 20 | - ✅ Task #10: Add Terraform validation tests (Completed - `make test` and `make pr` targets added) 21 | - ✅ GitHub Actions workflow added for automated PR checks 22 | - 📋 Task #8: Apply MOBB RULES to new code (Ongoing) 23 | - 📋 Task #9: Security hardening documentation (Medium Priority) 24 | 25 | ## Tasks 26 | 27 | ### Completed ✅ 28 | 29 | - [x] **Task #1:** Create DESIGN.md 30 | - Document project intent, architecture, constraints, and design decisions 31 | - Completed: 2024-12-01 32 | 33 | - [x] **Task #2:** Create PLAN.md 34 | - Create initial task list for MOBB RULES adoption 35 | - Completed: 2024-12-01 36 | 37 | ### Completed ✅ (MOBB RULES Adoption) 38 | 39 | - [x] **Task #1:** Create DESIGN.md 40 | - Document project intent, architecture, constraints, and design decisions 41 | - Completed: 2024-12-01 42 | 43 | - [x] **Task #2:** Create PLAN.md 44 | - Create initial task list for MOBB RULES adoption 45 | - Completed: 2024-12-01 46 | 47 | - [x] **Task #3:** Update Makefile 48 | - Add standard MOBB RULES targets (validate, fmt, fmt-fix, check, lint) 49 | - Completed: 2024-12-01 50 | - Depends on: Task #1 51 | 52 | - [x] **Task #4:** Create CHANGELOG.md 53 | - Create following Keep a Changelog format 54 | - Document current state and MOBB RULES adoption 55 | - Completed: 2024-12-01 56 | - Depends on: Task #1 57 | 58 | - [x] **Task #5:** Create AGENTS.md 59 | - Compile best practices from MOBB RULES (Terraform + Azure + ARO) 60 | - Document existing patterns and deviations 61 | - Document context-aware security approach 62 | - Completed: 2024-12-01 63 | - Depends on: Task #1 64 | 65 | - [x] **Task #6:** Create .cursorrules 66 | - Reference AGENTS.md for AI agent instructions 67 | - Include project context and guidelines 68 | - Completed: 2024-12-01 69 | - Depends on: Task #5 70 | 71 | ### Completed ✅ 72 | 73 | - [x] **Task #7:** Document existing patterns 74 | - Document current Terraform patterns 75 | - Document naming conventions 76 | - Document security patterns (permissive defaults) 77 | - Completed: 2024-12-01 78 | - Depends on: Task #5 79 | - Output: PATTERNS.md created 80 | 81 | - [x] **Task #11:** Implement best practices across codebase 82 | - Added descriptions to all outputs (MOBB RULES requirement) 83 | - Added ManagedBy tag to default tags variable 84 | - Standardized naming: Fixed jumphost resource identifier inconsistencies 85 | - Improved variable descriptions for clarity and consistency 86 | - Added nullable attributes to optional variables 87 | - Fixed validation error messages 88 | - Completed: 2024-12-01 89 | - Depends on: Task #7 90 | 91 | ### Pending 📋 92 | 93 | - [ ] **Task #8:** Apply MOBB RULES to new code 94 | - Ensure all new code follows MOBB RULES standards 95 | - Apply Terraform best practices 96 | - Apply Azure naming conventions 97 | - Priority: High 98 | - Estimated Effort: Ongoing 99 | - Depends on: Task #5 100 | 101 | - [ ] **Task #9:** Security hardening documentation 102 | - Document security considerations for production 103 | - Add examples for restricted NSG rules 104 | - Add examples for restricted firewall rules 105 | - Priority: Medium 106 | - Estimated Effort: 2 hours 107 | - Depends on: Task #5 108 | 109 | - [x] **Task #10:** Add Terraform validation tests 110 | - Add `terraform validate` to CI/CD 111 | - Add `terraform fmt` checks 112 | - Add `terraform lint` checks (if available) 113 | - Added `make test` and `make pr` targets 114 | - Added GitHub Actions workflow for automated PR checks 115 | - Priority: Low 116 | - Completed: 2024-12-01 117 | - Depends on: Task #3 118 | 119 | ### Pending 📋 (Gap Analysis - MOBB RULES Alignment) 120 | 121 | - [x] **Task #12:** Reorganize files with numeric prefixes 122 | - Apply MOBB RULES file organization with numeric prefixes 123 | - Renamed files: `00-terraform.tf`, `01-variables.tf`, `10-network.tf`, `11-egress.tf`, `20-iam.tf`, `30-jumphost.tf`, `40-acr.tf`, `50-cluster.tf` 124 | - Verified Terraform initialization works with new file names 125 | - Priority: Medium 126 | - Completed: 2024-12-01 127 | - Depends on: Task #5 128 | - Gap Analysis: File organization uses flat structure instead of numeric prefixes 129 | 130 | - [x] **Task #13:** Add descriptions to all outputs 131 | - Add `description` attribute to all 5 outputs 132 | - Document what each output provides 133 | - Include usage examples where helpful 134 | - Outputs: `console_url`, `api_url`, `api_server_ip`, `ingress_ip`, `public_ip` 135 | - Priority: High 136 | - Completed: 2024-12-01 137 | - Depends on: Task #5 138 | - Gap Analysis: All outputs missing descriptions (MOBB RULES requirement) 139 | 140 | - [x] **Task #14:** Standardize resource naming (fix hyphens/underscores inconsistency) 141 | - Convert jumphost resource identifiers from hyphens to underscores 142 | - Fix: `jumphost-subnet` → `jumphost_subnet` 143 | - Fix: `jumphost-pip` → `jumphost_pip` 144 | - Fix: `jumphost-nic` → `jumphost_nic` 145 | - Fix: `jumphost-nsg` → `jumphost_nsg` 146 | - Fix: `jumphost-vm` → `jumphost_vm` 147 | - Fix: `association` → `jumphost_association` 148 | - Update all references in code 149 | - Priority: High 150 | - Completed: 2024-12-01 151 | - Depends on: Task #5 152 | - Gap Analysis: Mixed naming convention (hyphens vs underscores) - CHANGELOG claims fix but code still inconsistent 153 | 154 | - [x] **Task #15:** Create outputs.tf and consolidate all outputs 155 | - Create dedicated `90-outputs.tf` file 156 | - Move outputs from `50-cluster.tf` (4 outputs) to `90-outputs.tf` 157 | - Move output from `30-jumphost.tf` (1 output) to `90-outputs.tf` 158 | - Improve organization and maintainability 159 | - Priority: Medium 160 | - Completed: 2024-12-01 161 | - Depends on: Task #13 162 | - Gap Analysis: Outputs scattered across multiple files instead of dedicated outputs.tf 163 | 164 | - [x] **Task #16:** Enhance variable descriptions 165 | - Review all variable descriptions for clarity and completeness 166 | - Add usage examples where helpful 167 | - Document constraints and defaults more explicitly 168 | - Improve brief descriptions (e.g., "ARO cluster name", "Azure region") 169 | - Priority: Low 170 | - Completed: 2024-12-01 171 | - Depends on: Task #5 172 | - Gap Analysis: Variable descriptions exist but could be more detailed and informative 173 | 174 | - [x] **Task #17:** Enhance TODO comments with context 175 | - Add context and rationale to TODO comments 176 | - Link to design decisions or issues where appropriate 177 | - Update TODOs in `10-network.tf` (lockdown for private clusters) 178 | - Update TODO in `11-egress.tf` (restrict firewall network rules) 179 | - Update TODO in `11-egress.tf` (hub-spoke conversion - align with DESIGN.md non-goals) 180 | - Priority: Low 181 | - Completed: 2024-12-01 182 | - Depends on: Task #1 183 | - Gap Analysis: TODO comments lack context and rationale 184 | 185 | - [x] **Task #18:** Create locals.tf and consolidate locals 186 | - Create dedicated `02-locals.tf` file 187 | - Move locals from `50-cluster.tf` (`local.domain`, `local.name_prefix`, `local.pull_secret`) 188 | - Move locals from `20-iam.tf` (`local.installer_service_principal_name`, `local.cluster_service_principal_name`) 189 | - Improve organization and maintainability 190 | - Priority: Low 191 | - Completed: 2024-12-01 192 | - Depends on: Task #5 193 | - Gap Analysis: Locals defined inline in multiple files instead of dedicated locals.tf 194 | 195 | ## Notes 196 | 197 | - Tasks are ordered by dependencies 198 | - Update status as work progresses 199 | - Add new tasks as requirements are identified 200 | - Reference this file before starting new work 201 | - MOBB RULES adoption is the current priority 202 | 203 | ## Project Context 204 | 205 | **Current State:** 206 | - Working Terraform code for ARO cluster deployment 207 | - Supports public and private clusters 208 | - Conditional resources for firewall, jumphost, ACR 209 | - Comprehensive Makefile with testing and deployment targets 210 | - GitHub Actions workflow for automated PR checks 211 | 212 | **MOBB RULES Adoption:** 213 | - ✅ Mandatory files created (DESIGN.md, PLAN.md, CHANGELOG.md, AGENTS.md, .cursorrules) 214 | - ✅ Gap analysis completed - 7 gaps identified between existing code and MOBB RULES 215 | - ✅ All gap analysis tasks completed (Tasks #12-18) 216 | - ✅ Testing infrastructure added (`make test`, `make pr`, GitHub Actions) 217 | - ✅ Documentation updated (README, CHANGELOG, PLAN) 218 | - 📋 Documenting existing patterns and deviations 219 | - 📋 Ensuring new code follows MOBB RULES standards 220 | 221 | **Next Major Milestone:** 222 | - Security hardening documentation (Task #9) 223 | - All MOBB RULES standards applied to existing codebase 224 | - Best practices compiled and documented in AGENTS.md 225 | -------------------------------------------------------------------------------- /CHANGELOG.md: -------------------------------------------------------------------------------- 1 | # Changelog 2 | 3 | All notable changes to this project will be documented in this file. 4 | 5 | The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), 6 | and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). 7 | 8 | ## [Unreleased] 9 | 10 | ### Added 11 | - ARO Managed Identities support (preview feature) 12 | - New `enable_managed_identities` variable to enable managed identity deployment 13 | - ARM template deployment (`templates/aro-cluster-managed-identity.json`) for managed identity clusters 14 | - Conditional cluster deployment: uses ARM template when managed identities enabled, Terraform resource otherwise 15 | - aro-permissions module outputs for managed identity resource IDs and principal IDs 16 | - Updated outputs to support both service principal and managed identity deployments 17 | - Documentation for managed identities feature (README.md, DESIGN.md) 18 | 19 | ### Changed 20 | - `azurerm_redhat_openshift_cluster` resource is now conditional (count = 0 when managed identities enabled) 21 | - Cluster deployment method switches based on `enable_managed_identities` variable 22 | - Outputs now handle both deployment methods transparently 23 | 24 | ## [1.0.0] - 2024-12-01 25 | 26 | ### Added 27 | - `make test` target - Full test suite including terraform validate, fmt, tflint, checkov, and terraform plan 28 | - `make pr` target - Pre-commit checks (validate, fmt, tflint, checkov) without terraform plan 29 | - `make login` target - Automated login to ARO cluster using terraform outputs and Azure CLI credentials 30 | - GitHub Actions workflow (`.github/workflows/pr.yml`) - Automated PR checks with PR comments 31 | - Runs `make pr` on pull requests and pushes to main 32 | - Posts PR comments with check results 33 | - Includes Terraform, tflint, and checkov setup 34 | - Caches Terraform providers for faster runs 35 | - Terraform outputs: `cluster_name` and `resource_group_name` for easier cluster management 36 | - Vendored `terraform-aro-permissions` module (v0.2.1) into `./modules/aro-permissions/` 37 | - Removes external git dependency 38 | - Faster terraform init 39 | - Self-contained repository 40 | - Original source documented in module source comment 41 | - Checkov inline suppressions with justifications: 42 | - CKV_AZURE_119: Jumphost requires public IP for private cluster access 43 | - CKV2_AZURE_31: Subnets use NSG via associations or private endpoints 44 | - Terraform `required_version` constraint: `>= 1.12` 45 | - Provider version constraints: Added `random` (~>3.0) and `time` (~>0.9) to required_providers 46 | 47 | ### Changed 48 | - **BREAKING:** Reorganized Terraform files with numeric prefixes per MOBB RULES 49 | - `terraform.tf` → `00-terraform.tf` 50 | - `variables.tf` → `01-variables.tf` 51 | - New: `02-locals.tf` - Consolidated all local values 52 | - `network.tf` → `10-network.tf` 53 | - `egress.tf` → `11-egress.tf` 54 | - `iam.tf` → `20-iam.tf` 55 | - `jumphost.tf` → `30-jumphost.tf` 56 | - `acr.tf` → `40-acr.tf` 57 | - `cluster.tf` → `50-cluster.tf` 58 | - New: `90-outputs.tf` - Consolidated all outputs 59 | - Note: Terraform automatically reads all `.tf` files, so functionality unchanged 60 | - **BREAKING:** Standardized resource naming - converted hyphens to underscores 61 | - `azurerm_subnet.jumphost-subnet` → `azurerm_subnet.jumphost_subnet` 62 | - `azurerm_public_ip.jumphost-pip` → `azurerm_public_ip.jumphost_pip` 63 | - `azurerm_network_interface.jumphost-nic` → `azurerm_network_interface.jumphost_nic` 64 | - `azurerm_network_security_group.jumphost-nsg` → `azurerm_network_security_group.jumphost_nsg` 65 | - `azurerm_linux_virtual_machine.jumphost-vm` → `azurerm_linux_virtual_machine.jumphost_vm` 66 | - `azurerm_network_interface_security_group_association.association` → `azurerm_network_interface_security_group_association.jumphost_association` 67 | - Enhanced all variable descriptions with more detail, usage examples, and constraints 68 | - Enhanced TODO comments with context, rationale, and references to DESIGN.md 69 | - **BREAKING:** `aro_version` variable now defaults to `null` instead of `"4.16.30"` 70 | - If `aro_version` is not provided, the latest available version for the region is automatically detected 71 | - To specify a version explicitly, set `aro_version = "4.16.30"` (or desired version) 72 | - Detection uses: `az aro get-versions -l ` and selects the latest version 73 | 74 | ### Added 75 | - Gap analysis comparing existing codebase to MOBB RULES standards 76 | - `02-locals.tf` - Consolidated all local values from multiple files 77 | - `03-data.tf` - Data sources including automatic ARO version detection 78 | - `90-outputs.tf` - Consolidated all outputs from multiple files 79 | - Descriptions added to all 5 outputs (`console_url`, `api_url`, `api_server_ip`, `ingress_ip`, `public_ip`) 80 | - Enhanced variable descriptions with detailed explanations, usage examples, and constraints 81 | - Enhanced TODO comments with context, rationale, and references to DESIGN.md 82 | - Automatic ARO version detection - `aro_version` variable now defaults to `null` and automatically detects latest available version if not provided 83 | - `external` provider added for shell command execution 84 | - DESIGN.md - Project design document documenting architecture, constraints, and design decisions 85 | - Documents project intent, high-level architecture, design decisions, constraints, and non-goals 86 | - Includes context-aware security approach documentation 87 | - References external documentation and future considerations 88 | - PLAN.md - Implementation plan tracking tasks and progress 89 | - Updated to reflect MOBB RULES adoption progress 90 | - CHANGELOG.md - This file, tracking all notable changes 91 | - AGENTS.md - Project-specific best practices compiled from MOBB RULES 92 | - Compiles Terraform, Azure, and ARO best practices 93 | - Documents existing patterns and deviations 94 | - Includes context-aware application guidelines 95 | - Documents security approach for example/demo context 96 | - .cursorrules - AI agent instructions referencing AGENTS.md 97 | - Provides guidelines for AI coding agents working on this project 98 | - References DESIGN.md, AGENTS.md, and PLAN.md 99 | - Makefile targets: `validate`, `fmt`, `fmt-fix`, `check`, `lint` - Standard MOBB RULES targets for Terraform validation and formatting 100 | - `validate` - Run terraform validate 101 | - `fmt` - Check formatting (non-destructive) 102 | - `fmt-fix` - Fix formatting automatically 103 | - `check` - Run both validate and fmt checks 104 | - `lint` - Run linting checks (currently wraps check) 105 | - `make test` - Full test suite with terraform plan (requires Azure CLI login) 106 | - `make pr` - Pre-commit checks without terraform plan (no Azure credentials needed) 107 | - `make login` - Automated ARO cluster login using terraform outputs 108 | - `ManagedBy = "Terraform"` tag to default tags variable 109 | 110 | ### Changed 111 | - Makefile - Added standard MOBB RULES targets for validation and formatting 112 | - **BREAKING:** Standardized Terraform resource identifiers to use underscores consistently 113 | - `azurerm_subnet.jumphost-subnet` → `azurerm_subnet.jumphost_subnet` 114 | - `azurerm_public_ip.jumphost-pip` → `azurerm_public_ip.jumphost_pip` 115 | - `azurerm_network_interface.jumphost-nic` → `azurerm_network_interface.jumphost_nic` 116 | - `azurerm_network_security_group.jumphost-nsg` → `azurerm_network_security_group.jumphost_nsg` 117 | - `azurerm_linux_virtual_machine.jumphost-vm` → `azurerm_linux_virtual_machine.jumphost_vm` 118 | - `azurerm_network_interface_security_group_association.association` → `azurerm_network_interface_security_group_association.jumphost_association` 119 | - All outputs - Added descriptions per MOBB RULES best practices 120 | - All variables - Improved descriptions for clarity and consistency 121 | - Variables - Added `nullable` attribute to optional variables (`resource_group_name`, `pull_secret_path`, `domain`) 122 | - Variables - Standardized description format (capitalized CIDR, clearer explanations) 123 | - Variables - Fixed typo in `aro_private_endpoint_cidr_block` description 124 | - Variables - Improved validation error messages (fixed "Must be not be empty" → "Must not be empty") 125 | 126 | ## [0.1.0] - 2024-12-01 127 | 128 | ### Added 129 | - Initial Terraform codebase for ARO cluster deployment 130 | - Support for public ARO clusters 131 | - Support for private ARO clusters 132 | - Conditional Azure Firewall for egress traffic restriction 133 | - Conditional jumphost VM for private cluster access 134 | - Conditional Azure Container Registry (ACR) with private endpoint 135 | - Service principal management via `terraform-aro-permissions` module 136 | - Basic Makefile with targets: `help`, `tfvars`, `init`, `create`, `create-private`, `create-private-noegress`, `destroy`, `destroy-force`, `delete`, `clean` 137 | - README.md with usage instructions 138 | - variables.tf with comprehensive variable definitions 139 | - terraform.tfvars.example for variable reference 140 | 141 | ### Notes 142 | - This changelog entry documents the initial state of the project before MOBB RULES adoption 143 | - Project supports both public and private ARO cluster deployments 144 | - Security defaults are permissive for example/demo use cases 145 | - Production deployments require security hardening (documented in DESIGN.md) 146 | 147 | [Unreleased]: https://github.com/rh-mobb/terraform-aro/compare/v1.0.0...HEAD 148 | [1.0.0]: https://github.com/rh-mobb/terraform-aro/releases/tag/v1.0.0 149 | [0.1.0]: https://github.com/rh-mobb/terraform-aro/releases/tag/v0.1.0 150 | -------------------------------------------------------------------------------- /01-variables.tf: -------------------------------------------------------------------------------- 1 | variable "cluster_name" { 2 | type = string 3 | default = "my-aro-cluster" 4 | description = "Name of the Azure Red Hat OpenShift (ARO) cluster. This name will be used as a prefix for all created resources." 5 | } 6 | 7 | variable "tags" { 8 | type = map(string) 9 | default = { 10 | environment = "development" 11 | owner = "your@email.address" 12 | } 13 | description = "Map of tags to apply to all Azure resources. Default tags include 'environment' and 'owner'. The 'ManagedBy' tag is automatically added." 14 | } 15 | 16 | variable "location" { 17 | type = string 18 | default = "eastus" 19 | description = "Azure region where the ARO cluster and associated resources will be deployed. Example: 'eastus', 'westus2', 'westeurope'" 20 | } 21 | 22 | variable "aro_virtual_network_cidr_block" { 23 | type = string 24 | default = "10.0.0.0/20" 25 | description = "CIDR block for the ARO virtual network. Must be large enough to accommodate all subnets. Default: 10.0.0.0/20 (4096 addresses)" 26 | } 27 | 28 | variable "aro_control_subnet_cidr_block" { 29 | type = string 30 | default = "10.0.0.0/23" 31 | description = "CIDR block for the ARO control plane subnet. Must be within the virtual network CIDR. Default: 10.0.0.0/23 (512 addresses)" 32 | } 33 | 34 | variable "aro_machine_subnet_cidr_block" { 35 | type = string 36 | default = "10.0.2.0/23" 37 | description = "CIDR block for the ARO worker node (machine) subnet. Must be within the virtual network CIDR and not overlap with other subnets. Default: 10.0.2.0/23 (512 addresses)" 38 | } 39 | 40 | variable "aro_jumphost_subnet_cidr_block" { 41 | type = string 42 | default = "10.0.4.0/23" 43 | description = "CIDR block for the jumphost/bastion subnet. Used for private cluster access. Must be within the virtual network CIDR. Default: 10.0.4.0/23 (512 addresses)" 44 | } 45 | 46 | variable "aro_firewall_subnet_cidr_block" { 47 | type = string 48 | default = "10.0.6.0/23" 49 | description = "CIDR block for the Azure Firewall subnet. Required when restrict_egress_traffic is enabled. Must be within the virtual network CIDR. Default: 10.0.6.0/23 (512 addresses)" 50 | } 51 | 52 | variable "aro_private_endpoint_cidr_block" { 53 | type = string 54 | default = "10.0.8.0/23" 55 | description = "CIDR block for the private endpoint subnet. Used for Azure Container Registry private endpoints when acr_private is enabled. Must be within the virtual network CIDR. Default: 10.0.8.0/23 (512 addresses)" 56 | } 57 | 58 | variable "aro_pod_cidr_block" { 59 | type = string 60 | default = "10.128.0.0/14" 61 | description = "CIDR block for Kubernetes pods within the ARO cluster. Must not overlap with the virtual network CIDR or service CIDR. Default: 10.128.0.0/14" 62 | } 63 | 64 | variable "aro_service_cidr_block" { 65 | type = string 66 | default = "172.30.0.0/16" 67 | description = "CIDR block for Kubernetes services within the ARO cluster. Must not overlap with the virtual network CIDR or pod CIDR. Default: 172.30.0.0/16" 68 | } 69 | 70 | variable "restrict_egress_traffic" { 71 | type = bool 72 | default = false 73 | description = < 125 | Default: null (auto-detect latest) 126 | EOF 127 | default = null 128 | nullable = true 129 | } 130 | 131 | variable "acr_private" { 132 | type = bool 133 | default = false 134 | description = <= 128 200 | error_message = "Invalid 'worker_disk_size_gb'. Minimum of 128GB." 201 | } 202 | } 203 | 204 | variable "worker_node_count" { 205 | type = number 206 | default = 3 207 | description = "Number of worker nodes in the ARO cluster. Minimum 3 required by ARO. Default: 3" 208 | 209 | validation { 210 | condition = var.worker_node_count >= 3 211 | error_message = "Invalid 'worker_node_count'. Minimum of 3." 212 | } 213 | } 214 | 215 | variable "apply_restricted_policies" { 216 | type = bool 217 | default = false 218 | description = "Apply additional Azure Policy restrictions to further limit permissions for service principals and identities. Recommended for production deployments. Default: false (permissive for development/example use)" 219 | } 220 | 221 | variable "jumphost_ssh_public_key_path" { 222 | type = string 223 | default = "~/.ssh/id_rsa.pub" 224 | description = "Path to the SSH public key file for jumphost VM access. Default: ~/.ssh/id_rsa.pub. For CI/CD, set to a dummy file path or create a temporary key." 225 | } 226 | 227 | variable "jumphost_ssh_private_key_path" { 228 | type = string 229 | default = "~/.ssh/id_rsa" 230 | description = "Path to the SSH private key file for jumphost VM access. Default: ~/.ssh/id_rsa. For CI/CD, set to a dummy file path or create a temporary key." 231 | } 232 | 233 | variable "enable_managed_identities" { 234 | type = bool 235 | default = false 236 | description = < **NOTE:** This module is for **managed identity-based deployments only** (currently in preview). For service principal deployments, 7 | > use the [`aro-permissions`](../aro-permissions) module instead. 8 | 9 | > **WARN:** Managed identities for ARO is currently a **preview feature** and not recommended for production use. This is a 10 | > community-supported project and you should consult your appropriate product documentation prior to using this in your environment 11 | > to ensure it is appropriate for your needs. 12 | 13 | ## Managed Identities 14 | 15 | This module creates 9 user-assigned managed identities required for ARO cluster operations: 16 | 17 | | Managed Identity | Purpose | Network Permissions | 18 | |-----------------|---------|---------------------| 19 | | `aro-service` | ARO operator | Subnets, Route Tables, NAT Gateways, NSG | 20 | | `cloud-controller-manager` | Kubernetes cloud controller | Subnets, NSG | 21 | | `cloud-network-config` | Network configuration | VNET, Subnets (required by ARO API) | 22 | | `cluster` | Cluster identity (main) | N/A (manages other identities) | 23 | | `disk-csi-driver` | Disk CSI driver | N/A | 24 | | `file-csi-driver` | File CSI driver | VNET, Subnets, Route Tables, NAT Gateways, NSG (required by ARO API) | 25 | | `image-registry` | Image registry | VNET, Subnets (required by ARO API) | 26 | | `ingress` | Ingress controller | Subnets | 27 | | `machine-api` | Machine API | Subnets, Route Tables, NSG | 28 | 29 | The `cluster` managed identity acts as the primary identity and is assigned the "Managed Identity Operator" role on all other managed identities, 30 | allowing it to manage them as needed. 31 | 32 | ## Objects 33 | 34 | This section defines the objects which need individual permissions. 35 | 36 | | Object Type | Description | 37 | |------------|-------------| 38 | | Subscription | The highest level a permission will be applied. Inherits down to all objects within that subscription. | 39 | | ARO Resource Group | Resource group where the actual ARO object is created. | 40 | | Managed Resource Group | Resource group where the underlying ARO objects (e.g. VMs, load balancers) are created. Created automatically by ARO service. | 41 | | Network Resource Group | Resource group where network resources (e.g. VNET, NSG) exist. | 42 | | VNET | VNET where the ARO cluster will be provisioned. | 43 | | Subnets | Subnets within the VNET used by the ARO cluster (control plane and worker subnets). | 44 | | Network Security Group | Network security group applied to the subnets (BYO-NSG scenarios). | 45 | | Route Tables | Route tables for user-defined routing (if `outbound_type = UserDefinedRouting`). | 46 | | NAT Gateways | NAT gateways for user-defined routing (if `outbound_type = UserDefinedRouting`). | 47 | 48 | ## Permissions 49 | 50 | This section identifies what permissions are needed by each managed identity. 51 | 52 | | Permission Number | Managed Identity | Object | Permission | Comment | 53 | |-------------------|------------------|--------|------------|---------| 54 | | 1 | `cloud-network-config` | VNET | Network Contributor or Minimal Network Permissions | | 55 | | 2 | `file-csi-driver` | VNET | Network Contributor or Minimal Network Permissions | | 56 | | 3 | `image-registry` | VNET | Network Contributor or Minimal Network Permissions | | 57 | | 4 | `aro-service` | Subnets | Network Contributor or Minimal Network Permissions | | 58 | | 5 | `cloud-controller-manager` | Subnets | Network Contributor or Minimal Network Permissions | | 59 | | 6 | `cloud-network-config` | Subnets | Network Contributor or Minimal Network Permissions | Required by ARO API (not in script.sh but required) | 60 | | 7 | `file-csi-driver` | Subnets | Network Contributor or Minimal Network Permissions | Required by ARO API (not in script.sh but required) | 61 | | 8 | `image-registry` | Subnets | Network Contributor or Minimal Network Permissions | Required by ARO API (not in script.sh but required) | 62 | | 9 | `ingress` | Subnets | Network Contributor or Minimal Network Permissions | | 63 | | 10 | `machine-api` | Subnets | Network Contributor or Minimal Network Permissions | | 64 | | 11 | `aro-service` | Route Tables | Network Contributor or Minimal Network Permissions | Only if route tables exist | 65 | | 12 | `file-csi-driver` | Route Tables | Network Contributor or Minimal Network Permissions | Only if route tables exist | 66 | | 13 | `machine-api` | Route Tables | Network Contributor or Minimal Network Permissions | Only if route tables exist | 67 | | 14 | `aro-service` | NAT Gateways | Network Contributor or Minimal Network Permissions | Only if NAT gateways exist | 68 | | 15 | `file-csi-driver` | NAT Gateways | Network Contributor or Minimal Network Permissions | Only if NAT gateways exist | 69 | | 16 | `aro-service` | Network Security Group | Network Contributor or Minimal Network Permissions | Only if NSG exists | 70 | | 17 | `cloud-controller-manager` | Network Security Group | Network Contributor or Minimal Network Permissions | Only if NSG exists | 71 | | 18 | `file-csi-driver` | Network Security Group | Network Contributor or Minimal Network Permissions | Only if NSG exists | 72 | | 19 | `machine-api` | Network Security Group | Network Contributor or Minimal Network Permissions | Only if NSG exists | 73 | | 20 | `cluster` | Other Managed Identities | Managed Identity Operator | Allows cluster identity to manage other identities | 74 | | 21 | Installer (current user) | ARO Resource Group | Contributor | Required for cluster deployment | 75 | | 22 | Resource Provider SP | VNET | Network Contributor or Minimal Network Permissions | | 76 | | 23 | Resource Provider SP | Route Tables | Network Contributor or Minimal Network Permissions | Only if route tables exist | 77 | | 24 | Resource Provider SP | NAT Gateways | Network Contributor or Minimal Network Permissions | Only if NAT gateways exist | 78 | | 25 | Resource Provider SP | Network Security Group | Network Contributor or Minimal Network Permissions | Only if NSG exists | 79 | 80 | ### Minimal Network Permissions 81 | 82 | In many cases, such as separation of duties and where network teams must provide infrastructure to consume, a 83 | reduced permission set lower than [Network Contributor](https://learn.microsoft.com/en-us/azure/role-based-access-control/built-in-roles#network-contributor) is required. 84 | 85 | The following permissions, in place of Network Contributor, have been successful. Note that managed identities use a union of 86 | static permissions with built-in role permissions, so write permissions are not always required: 87 | 88 | **VNET Permissions:** 89 | - `Microsoft.Network/virtualNetworks/join/action` 90 | - `Microsoft.Network/virtualNetworks/read` 91 | 92 | **Subnet Permissions:** 93 | - `Microsoft.Network/virtualNetworks/subnets/join/action` 94 | - `Microsoft.Network/virtualNetworks/subnets/read` 95 | - `Microsoft.Network/virtualNetworks/subnets/write` 96 | 97 | **Route Table Permissions (if route tables exist):** 98 | - `Microsoft.Network/routeTables/join/action` 99 | - `Microsoft.Network/routeTables/read` 100 | 101 | **NAT Gateway Permissions (if NAT gateways exist):** 102 | - `Microsoft.Network/natGateways/join/action` 103 | - `Microsoft.Network/natGateways/read` 104 | 105 | **Network Security Group Permissions (if NSG exists):** 106 | - `Microsoft.Network/networkSecurityGroups/join/action` 107 | 108 | ## Module Design 109 | 110 | This module follows MOBB RULES best practices: 111 | 112 | - **Simplicity**: Uses explicit role assignments instead of complex loops 113 | - **Explicit over Clever**: Each managed identity has individual role assignment resources 114 | - **Modern Terraform**: Uses `for_each` for subnet/route table/NAT gateway assignments 115 | - **No Legacy Code**: Providers are inherited from caller (no provider blocks in module) 116 | 117 | ## Prereqs 118 | 119 | Prior to running this module, the following must be satisfied: 120 | 121 | 1. Must be logged in as an administrator user using the `az login` command. Because assigning permissions is an administrative task, 122 | it is assumed whomever is running this module is an administrator. Alternative to full tenant administrator permissions, a user that has the 123 | [User Access Administrator](https://learn.microsoft.com/en-us/azure/role-based-access-control/built-in-roles#user-access-administrator) 124 | role should be able to complete this task. 125 | 126 | 1. Must have a VNET architecture pre-deployed and used as an input. 127 | 128 | 1. Must have the ARO Resource Provider registered: 129 | ```bash 130 | az provider register -n Microsoft.RedHatOpenShift --wait 131 | ``` 132 | 133 | ## Usage 134 | 135 | ```hcl 136 | module "aro_managed_identity_permissions" { 137 | source = "./modules/aro-managed-identity-permissions" 138 | 139 | cluster_name = "my-aro-cluster" 140 | location = "eastus" 141 | 142 | aro_resource_group = { 143 | name = "my-aro-rg" 144 | create = false 145 | } 146 | 147 | vnet = "my-vnet" 148 | vnet_resource_group = "my-vnet-rg" 149 | subnets = ["control-plane-subnet", "worker-subnet"] 150 | route_tables = ["my-route-table"] # Optional, if using UserDefinedRouting 151 | nat_gateways = [] # Optional, if using NAT gateways 152 | network_security_group = "my-nsg" # Optional, for BYO-NSG scenarios 153 | 154 | minimal_network_role = "my-aro-network" # Optional, for minimal permissions 155 | 156 | subscription_id = data.azurerm_client_config.current.subscription_id 157 | tenant_id = data.azurerm_client_config.current.tenant_id 158 | 159 | enabled = true 160 | } 161 | ``` 162 | 163 | ## Outputs 164 | 165 | The module provides the following outputs: 166 | 167 | - `managed_identity_ids`: Map of managed identity names to their Azure resource IDs 168 | - `managed_identity_principal_ids`: Map of managed identity names to their principal IDs (used in ARM templates) 169 | 170 | These outputs are used by the ARO cluster deployment (via ARM template) to configure the `platformWorkloadIdentityProfile` and `identity` blocks. 171 | 172 | ## Related Documentation 173 | 174 | - [Microsoft Documentation: Create ARO cluster with managed identities](https://learn.microsoft.com/en-us/azure/openshift/howto-create-openshift-cluster?pivots=aro-deploy-az-cli) 175 | - [ARO Permissions Module (Service Principals)](../aro-permissions/README.md) 176 | -------------------------------------------------------------------------------- /templates/aro-cluster-managed-identity.json: -------------------------------------------------------------------------------- 1 | { 2 | "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#", 3 | "contentVersion": "1.0.0.0", 4 | "parameters": { 5 | "clusterName": { 6 | "type": "string", 7 | "metadata": { 8 | "description": "Name of the ARO cluster" 9 | } 10 | }, 11 | "location": { 12 | "type": "string", 13 | "metadata": { 14 | "description": "Azure region where the cluster will be deployed" 15 | } 16 | }, 17 | "resourceGroupName": { 18 | "type": "string", 19 | "metadata": { 20 | "description": "Resource group name for the ARO cluster" 21 | } 22 | }, 23 | "managedResourceGroupName": { 24 | "type": "string", 25 | "metadata": { 26 | "description": "Managed resource group name for ARO cluster resources" 27 | } 28 | }, 29 | "domain": { 30 | "type": "string", 31 | "metadata": { 32 | "description": "Custom domain for the ARO cluster" 33 | } 34 | }, 35 | "pullSecret": { 36 | "type": "string", 37 | "defaultValue": "", 38 | "metadata": { 39 | "description": "Red Hat pull secret (JSON string)" 40 | } 41 | }, 42 | "version": { 43 | "type": "string", 44 | "metadata": { 45 | "description": "ARO cluster version" 46 | } 47 | }, 48 | "podCidr": { 49 | "type": "string", 50 | "metadata": { 51 | "description": "CIDR block for Kubernetes pods" 52 | } 53 | }, 54 | "serviceCidr": { 55 | "type": "string", 56 | "metadata": { 57 | "description": "CIDR block for Kubernetes services" 58 | } 59 | }, 60 | "masterVmSize": { 61 | "type": "string", 62 | "metadata": { 63 | "description": "VM size for control plane nodes" 64 | } 65 | }, 66 | "masterSubnetId": { 67 | "type": "string", 68 | "metadata": { 69 | "description": "Subnet ID for control plane nodes" 70 | } 71 | }, 72 | "workerVmSize": { 73 | "type": "string", 74 | "metadata": { 75 | "description": "VM size for worker nodes" 76 | } 77 | }, 78 | "workerDiskSizeGB": { 79 | "type": "int", 80 | "metadata": { 81 | "description": "Disk size in GB for worker nodes" 82 | } 83 | }, 84 | "workerNodeCount": { 85 | "type": "int", 86 | "metadata": { 87 | "description": "Number of worker nodes" 88 | } 89 | }, 90 | "workerSubnetId": { 91 | "type": "string", 92 | "metadata": { 93 | "description": "Subnet ID for worker nodes" 94 | } 95 | }, 96 | "apiServerVisibility": { 97 | "type": "string", 98 | "allowedValues": ["Public", "Private"], 99 | "metadata": { 100 | "description": "API server visibility" 101 | } 102 | }, 103 | "ingressVisibility": { 104 | "type": "string", 105 | "allowedValues": ["Public", "Private"], 106 | "metadata": { 107 | "description": "Ingress visibility" 108 | } 109 | }, 110 | "outboundType": { 111 | "type": "string", 112 | "allowedValues": ["Loadbalancer", "UserDefinedRouting"], 113 | "metadata": { 114 | "description": "Outbound type for egress traffic" 115 | } 116 | }, 117 | "managedIdentityAroServiceId": { 118 | "type": "string", 119 | "metadata": { 120 | "description": "Resource ID of aro-service managed identity" 121 | } 122 | }, 123 | "managedIdentityCloudControllerManagerId": { 124 | "type": "string", 125 | "metadata": { 126 | "description": "Resource ID of cloud-controller-manager managed identity" 127 | } 128 | }, 129 | "managedIdentityCloudNetworkConfigId": { 130 | "type": "string", 131 | "metadata": { 132 | "description": "Resource ID of cloud-network-config managed identity" 133 | } 134 | }, 135 | "managedIdentityClusterId": { 136 | "type": "string", 137 | "metadata": { 138 | "description": "Resource ID of cluster managed identity" 139 | } 140 | }, 141 | "managedIdentityDiskCsiDriverId": { 142 | "type": "string", 143 | "metadata": { 144 | "description": "Resource ID of disk-csi-driver managed identity" 145 | } 146 | }, 147 | "managedIdentityFileCsiDriverId": { 148 | "type": "string", 149 | "metadata": { 150 | "description": "Resource ID of file-csi-driver managed identity" 151 | } 152 | }, 153 | "managedIdentityImageRegistryId": { 154 | "type": "string", 155 | "metadata": { 156 | "description": "Resource ID of image-registry managed identity" 157 | } 158 | }, 159 | "managedIdentityIngressId": { 160 | "type": "string", 161 | "metadata": { 162 | "description": "Resource ID of ingress managed identity" 163 | } 164 | }, 165 | "managedIdentityMachineApiId": { 166 | "type": "string", 167 | "metadata": { 168 | "description": "Resource ID of machine-api managed identity" 169 | } 170 | }, 171 | "managedIdentityAroServicePrincipalId": { 172 | "type": "string", 173 | "metadata": { 174 | "description": "Principal ID of aro-service managed identity" 175 | } 176 | }, 177 | "managedIdentityCloudControllerManagerPrincipalId": { 178 | "type": "string", 179 | "metadata": { 180 | "description": "Principal ID of cloud-controller-manager managed identity" 181 | } 182 | }, 183 | "managedIdentityCloudNetworkConfigPrincipalId": { 184 | "type": "string", 185 | "metadata": { 186 | "description": "Principal ID of cloud-network-config managed identity" 187 | } 188 | }, 189 | "managedIdentityDiskCsiDriverPrincipalId": { 190 | "type": "string", 191 | "metadata": { 192 | "description": "Principal ID of disk-csi-driver managed identity" 193 | } 194 | }, 195 | "managedIdentityFileCsiDriverPrincipalId": { 196 | "type": "string", 197 | "metadata": { 198 | "description": "Principal ID of file-csi-driver managed identity" 199 | } 200 | }, 201 | "managedIdentityImageRegistryPrincipalId": { 202 | "type": "string", 203 | "metadata": { 204 | "description": "Principal ID of image-registry managed identity" 205 | } 206 | }, 207 | "managedIdentityIngressPrincipalId": { 208 | "type": "string", 209 | "metadata": { 210 | "description": "Principal ID of ingress managed identity" 211 | } 212 | }, 213 | "managedIdentityMachineApiPrincipalId": { 214 | "type": "string", 215 | "metadata": { 216 | "description": "Principal ID of machine-api managed identity" 217 | } 218 | }, 219 | "tags": { 220 | "type": "object", 221 | "defaultValue": {}, 222 | "metadata": { 223 | "description": "Tags to apply to resources" 224 | } 225 | }, 226 | "fips": { 227 | "type": "string", 228 | "defaultValue": "Disabled", 229 | "allowedValues": ["Enabled", "Disabled"], 230 | "metadata": { 231 | "description": "Specify if FIPS validated crypto modules are used" 232 | } 233 | } 234 | }, 235 | "variables": { 236 | "resourceGroupId": "[format('/subscriptions/{0}/resourceGroups/{1}', subscription().subscriptionId, parameters('managedResourceGroupName'))]" 237 | }, 238 | "resources": [ 239 | { 240 | "type": "Microsoft.RedHatOpenShift/openShiftClusters", 241 | "apiVersion": "2024-08-12-preview", 242 | "name": "[parameters('clusterName')]", 243 | "location": "[parameters('location')]", 244 | "tags": "[parameters('tags')]", 245 | "properties": { 246 | "clusterProfile": { 247 | "domain": "[parameters('domain')]", 248 | "resourceGroupId": "[variables('resourceGroupId')]", 249 | "version": "[parameters('version')]", 250 | "fipsValidatedModules": "[parameters('fips')]", 251 | "pullSecret": "[parameters('pullSecret')]" 252 | }, 253 | "networkProfile": { 254 | "podCidr": "[parameters('podCidr')]", 255 | "serviceCidr": "[parameters('serviceCidr')]" 256 | }, 257 | "masterProfile": { 258 | "vmSize": "[parameters('masterVmSize')]", 259 | "subnetId": "[parameters('masterSubnetId')]", 260 | "encryptionAtHost": "Disabled" 261 | }, 262 | "workerProfiles": [ 263 | { 264 | "name": "worker", 265 | "count": "[parameters('workerNodeCount')]", 266 | "diskSizeGB": "[parameters('workerDiskSizeGB')]", 267 | "vmSize": "[parameters('workerVmSize')]", 268 | "subnetId": "[parameters('workerSubnetId')]", 269 | "encryptionAtHost": "Disabled" 270 | } 271 | ], 272 | "apiserverProfile": { 273 | "visibility": "[parameters('apiServerVisibility')]" 274 | }, 275 | "ingressProfiles": [ 276 | { 277 | "name": "default", 278 | "visibility": "[parameters('ingressVisibility')]" 279 | } 280 | ], 281 | "platformWorkloadIdentityProfile": { 282 | "platformWorkloadIdentities": { 283 | "cloud-controller-manager": { 284 | "resourceId": "[parameters('managedIdentityCloudControllerManagerId')]" 285 | }, 286 | "ingress": { 287 | "resourceId": "[parameters('managedIdentityIngressId')]" 288 | }, 289 | "machine-api": { 290 | "resourceId": "[parameters('managedIdentityMachineApiId')]" 291 | }, 292 | "disk-csi-driver": { 293 | "resourceId": "[parameters('managedIdentityDiskCsiDriverId')]" 294 | }, 295 | "cloud-network-config": { 296 | "resourceId": "[parameters('managedIdentityCloudNetworkConfigId')]" 297 | }, 298 | "image-registry": { 299 | "resourceId": "[parameters('managedIdentityImageRegistryId')]" 300 | }, 301 | "file-csi-driver": { 302 | "resourceId": "[parameters('managedIdentityFileCsiDriverId')]" 303 | }, 304 | "aro-operator": { 305 | "resourceId": "[parameters('managedIdentityAroServiceId')]" 306 | } 307 | } 308 | } 309 | }, 310 | "identity": { 311 | "type": "UserAssigned", 312 | "userAssignedIdentities": { 313 | "[parameters('managedIdentityClusterId')]": {} 314 | } 315 | } 316 | } 317 | ], 318 | "outputs": { 319 | "clusterId": { 320 | "type": "string", 321 | "value": "[resourceId('Microsoft.RedHatOpenShift/openShiftClusters', parameters('clusterName'))]" 322 | }, 323 | "consoleUrl": { 324 | "type": "string", 325 | "value": "[reference(resourceId('Microsoft.RedHatOpenShift/openShiftClusters', parameters('clusterName')), '2024-08-12-preview').consoleProfile.url]" 326 | }, 327 | "apiServerUrl": { 328 | "type": "string", 329 | "value": "[reference(resourceId('Microsoft.RedHatOpenShift/openShiftClusters', parameters('clusterName')), '2024-08-12-preview').apiserverProfile.url]" 330 | }, 331 | "apiServerIp": { 332 | "type": "string", 333 | "value": "[reference(resourceId('Microsoft.RedHatOpenShift/openShiftClusters', parameters('clusterName')), '2024-08-12-preview').apiserverProfile.ip]" 334 | }, 335 | "ingressIp": { 336 | "type": "string", 337 | "value": "[reference(resourceId('Microsoft.RedHatOpenShift/openShiftClusters', parameters('clusterName')), '2024-08-12-preview').ingressProfiles[0].ip]" 338 | } 339 | } 340 | } 341 | -------------------------------------------------------------------------------- /DESIGN.md: -------------------------------------------------------------------------------- 1 | # Project Design Document 2 | 3 | **Project:** Terraform ARO Cluster Deployment 4 | **Version:** 0.1.0 5 | **Last Updated:** 2024-12-01 6 | 7 | ## Project Intent 8 | 9 | This project provides Terraform infrastructure-as-code for deploying Azure Red Hat OpenShift (ARO) clusters on Azure. The primary goal is to provide a reusable, well-documented Terraform module that supports both public and private ARO cluster deployments with configurable security options. 10 | 11 | ## High-Level Architecture 12 | 13 | ### Core Components 14 | 15 | 1. **ARO Cluster** (`50-cluster.tf`) 16 | - Azure Red Hat OpenShift cluster resource 17 | - Configurable control plane and worker node profiles 18 | - Supports public and private API/ingress visibility 19 | - Conditional deployment: Service Principal (default) or Managed Identities (preview) 20 | - Managed identities use ARM template deployment (`azurerm_resource_group_template_deployment`) 21 | 22 | 2. **Networking** (`10-network.tf`) 23 | - Virtual network with CIDR blocks for ARO 24 | - Control plane subnet (10.0.0.0/23) 25 | - Machine/worker subnet (10.0.2.0/23) 26 | - Network Security Groups (NSGs) with permissive defaults 27 | - Service endpoints for Storage and Container Registry 28 | 29 | 3. **Identity & Access Management** (`20-iam.tf`) 30 | - Service principal management via vendored `terraform-aro-permissions` module (v0.2.1) 31 | - Module located at `./modules/aro-permissions/` 32 | - Installer and cluster service principals (default) 33 | - Managed identities support (preview feature, enabled via `enable_managed_identities` variable) 34 | - When managed identities enabled: Creates 9 user-assigned managed identities 35 | - Minimal permission roles 36 | - Optional Azure Policy restrictions 37 | 38 | 4. **Egress Traffic Control** (`11-egress.tf`) - Conditional 39 | - Azure Firewall for restricting egress traffic 40 | - Firewall subnet (10.0.6.0/23) 41 | - Route tables for User Defined Routing 42 | - Network and application rule collections 43 | - Enabled via `restrict_egress_traffic` variable 44 | 45 | 5. **Jumphost** (`30-jumphost.tf`) - Conditional 46 | - Linux VM for accessing private clusters 47 | - Jumphost subnet (10.0.4.0/23) 48 | - Public IP for SSH access 49 | - Pre-installed OpenShift CLI tools 50 | - Created when API or ingress profile is Private 51 | 52 | 6. **Azure Container Registry** (`40-acr.tf`) - Conditional 53 | - Private ACR with private endpoint 54 | - Private endpoint subnet (10.0.8.0/23) 55 | - Private DNS zone integration 56 | - Enabled via `acr_private` variable 57 | 58 | ## Design Decisions 59 | 60 | ### 1. Security Defaults (Permissive) 61 | 62 | **Decision:** Security defaults are permissive to prioritize usability for examples, demos, and development environments. 63 | 64 | **Rationale:** 65 | - Makes the codebase easier to use for learning and testing 66 | - Reduces friction for developers getting started 67 | - Aligns with context-aware application philosophy 68 | 69 | **Implementation:** 70 | - NSG rules allow `0.0.0.0/0` for API, HTTP, and HTTPS (TODO comments indicate need for lockdown) 71 | - Firewall network rules allow all traffic when egress restriction is enabled 72 | - Jumphost NSG allows SSH from any source (`*`) 73 | 74 | **Production Hardening:** 75 | - Restrict NSG source addresses to specific IP ranges 76 | - Implement strict firewall rules with specific destinations 77 | - Use Azure Policy for additional restrictions (`apply_restricted_policies`) 78 | 79 | ### 2. Conditional Resources 80 | 81 | **Decision:** Use conditional resources (count/conditional creation) for optional components. 82 | 83 | **Rationale:** 84 | - Reduces resource costs when features aren't needed 85 | - Allows flexible deployment scenarios 86 | - Simplifies codebase by avoiding separate modules 87 | 88 | **Components:** 89 | - Firewall: Created when `restrict_egress_traffic = true` 90 | - Jumphost: Created when API or ingress profile is Private 91 | - ACR: Created when `acr_private = true` 92 | 93 | ### 3. Service Principal Management 94 | 95 | **Decision:** Use vendored `terraform-aro-permissions` module (v0.2.1) for service principal creation and permissions. 96 | 97 | **Rationale:** 98 | - Separates concerns (IAM vs infrastructure) 99 | - Reuses proven module with minimal permissions 100 | - Simplifies permission management 101 | - Self-contained repository (no external git dependencies) 102 | - Faster terraform init (no git clone required) 103 | 104 | **Implementation:** 105 | - Module vendored in `./modules/aro-permissions/` 106 | - Original source: `https://github.com/rh-mobb/terraform-aro-permissions.git?ref=v0.2.1` 107 | - Module creates installer and cluster service principals 108 | - Uses custom roles with minimal required permissions 109 | - Supports optional Azure Policy restrictions 110 | 111 | ### 4. Managed Identities Support (Preview) 112 | 113 | **Decision:** Support Azure Red Hat OpenShift managed identities via ARM template deployment. 114 | 115 | **Rationale:** 116 | - Managed identities provide enhanced security (no credential management) 117 | - Follows Azure best practices for identity management 118 | - Required for future-proofing as managed identities become GA 119 | - Leverages existing aro-permissions module support for managed identities 120 | 121 | **Implementation:** 122 | - Feature flag: `enable_managed_identities` (default: false) 123 | - When enabled: aro-permissions module creates 9 user-assigned managed identities 124 | - Cluster deployment uses ARM template (`azurerm_resource_group_template_deployment`) 125 | - ARM template uses API version `2024-08-12-preview` (required for managed identities) 126 | - ARM template includes `platformWorkloadIdentityProfile` and `identity` blocks 127 | - Role assignments between managed identities handled by ARM template 128 | - Outputs work identically for both service principal and managed identity deployments 129 | 130 | **Limitations:** 131 | - Currently in tech preview (not recommended for production) 132 | - Requires ARM template deployment (Terraform resource doesn't support it yet) 133 | - Existing clusters cannot be migrated from service principals to managed identities 134 | 135 | ### 5. File Organization 136 | 137 | **Decision:** Organize Terraform code by resource type/functionality into separate files. 138 | 139 | **Rationale:** 140 | - Improves code readability and maintainability 141 | - Makes it easier to find specific resources 142 | - Follows common Terraform patterns 143 | 144 | **Structure:** 145 | - `00-terraform.tf` - Provider configuration 146 | - `01-variables.tf` - Variable definitions 147 | - `10-network.tf` - Core networking resources (VNet, subnets, NSGs) 148 | - `11-egress.tf` - Firewall and egress control 149 | - `20-iam.tf` - Identity and access management 150 | - `30-jumphost.tf` - Jumphost VM 151 | - `40-acr.tf` - Azure Container Registry 152 | - `50-cluster.tf` - ARO cluster resource 153 | 154 | ### 5. Naming Conventions 155 | 156 | **Decision:** Use consistent naming with `local.name_prefix` (cluster name) as prefix. 157 | 158 | **Rationale:** 159 | - Ensures unique resource names 160 | - Makes resources easily identifiable 161 | - Follows Azure naming best practices 162 | 163 | **Pattern:** 164 | - Resources: `${local.name_prefix}--` 165 | - Example: `my-aro-cluster-rg`, `my-aro-cluster-vnet` 166 | 167 | ### 6. Tagging Strategy 168 | 169 | **Decision:** Use default tags with environment and owner, allow override via `tags` variable. 170 | 171 | **Rationale:** 172 | - Provides consistent resource tagging 173 | - Supports cost management and organization 174 | - Allows customization per deployment 175 | 176 | **Default Tags:** 177 | - `environment = "development"` 178 | - `owner = "your@email.address"` 179 | - `ManagedBy = "Terraform"` (added per MOBB RULES) 180 | 181 | ## Constraints and Assumptions 182 | 183 | ### Constraints 184 | 185 | 1. **Azure Provider Version:** Requires `azurerm` provider `~>4.21.1` 186 | 2. **ARO Requirements:** Must meet Azure Red Hat OpenShift prerequisites 187 | 3. **Service Principal Permissions:** Requires permissions to create service principals and assign roles 188 | 4. **Network CIDR Blocks:** Must not overlap with existing Azure networks 189 | 5. **Domain:** Optional but required for DNS policy restrictions 190 | 191 | ### Assumptions 192 | 193 | 1. **SSH Keys:** Jumphost assumes SSH keys exist at `~/.ssh/id_rsa.pub` and `~/.ssh/id_rsa` 194 | 2. **Pull Secret:** Optional Red Hat pull secret for private registries 195 | 3. **Azure CLI:** Users have Azure CLI configured and authenticated 196 | 4. **Terraform State:** State management handled externally (not in scope) 197 | 5. **Resource Group:** Can create or use existing resource group 198 | 199 | ## Non-Goals 200 | 201 | 1. **Multi-Region Deployment:** Single region deployments only 202 | 2. **Hub-Spoke Architecture:** Current design uses single VNet (TODO: convert to hub-spoke) 203 | 3. **Custom Node Pools:** Standard control plane and worker profiles only 204 | 4. **Advanced Networking:** No support for custom DNS, VPN, or ExpressRoute 205 | 5. **Monitoring/Logging:** Observability setup not included 206 | 6. **Backup/Disaster Recovery:** Backup and DR strategies not included 207 | 7. **CI/CD Integration:** Deployment automation not included 208 | 209 | ## Future Considerations 210 | 211 | ### Planned Improvements 212 | 213 | 1. **Hub-Spoke Architecture:** Convert from single VNet to hub-spoke model (noted in `11-egress.tf`) 214 | 2. **Security Hardening:** Implement restricted NSG rules for private clusters (TODO comments in `10-network.tf`) 215 | 3. **Firewall Rules:** Restrict firewall network rules (TODO in `11-egress.tf`) 216 | 4. **Testing:** Add Terraform validation tests and CI/CD integration 217 | 218 | ### Potential Enhancements 219 | 220 | 1. **Multi-Region Support:** Extend to support multi-region deployments 221 | 2. **Custom Node Pools:** Support for additional worker node pools 222 | 3. **Monitoring Integration:** Add Azure Monitor and Log Analytics 223 | 4. **Backup Strategy:** Implement backup and restore capabilities 224 | 5. **Documentation:** Expand with more examples and use cases 225 | 226 | ## Context-Aware Application 227 | 228 | ### Project Context 229 | 230 | This project serves as an **example/demo/development** tool for deploying ARO clusters. As such: 231 | 232 | - **Security defaults are permissive** to prioritize usability and learning 233 | - **Security features are toggleable** (e.g., `restrict_egress_traffic`, `apply_restricted_policies`) 234 | - **Documentation includes production hardening guidance** (this document, README) 235 | 236 | ### Security Considerations 237 | 238 | **Current State (Example/Demo):** 239 | - Permissive NSG rules (allow from `0.0.0.0/0`) 240 | - Optional egress restriction (disabled by default) 241 | - Optional Azure Policy restrictions (disabled by default) 242 | - Jumphost allows SSH from any source 243 | 244 | **Production Hardening Required:** 245 | - Restrict NSG source addresses to specific IP ranges 246 | - Enable and configure strict firewall rules 247 | - Enable Azure Policy restrictions 248 | - Restrict jumphost SSH access to specific IPs 249 | - Implement network security best practices 250 | - Review and restrict all security group rules 251 | 252 | ## References 253 | 254 | - [Azure Red Hat OpenShift Documentation](https://learn.microsoft.com/en-us/azure/openshift/) 255 | - [Terraform ARO Provider](https://registry.terraform.io/providers/hashicorp/azurerm/latest/docs/resources/redhat_openshift_cluster) 256 | - [terraform-aro-permissions Module](https://github.com/rh-mobb/terraform-aro-permissions) (vendored at `./modules/aro-permissions/` - v0.2.1) 257 | - [ARO Egress Restriction Guide](https://learn.microsoft.com/en-us/azure/openshift/howto-restrict-egress) 258 | - [ARO Private Cluster Guide](https://learn.microsoft.com/en-us/azure/openshift/howto-create-private-cluster-4x) 259 | -------------------------------------------------------------------------------- /modules/aro-permissions/30-permissions.tf: -------------------------------------------------------------------------------- 1 | # 2 | # helpers 3 | # 4 | locals { 5 | network_api_path_prefix = "${local.network_resource_group_id}/providers/Microsoft.Network" 6 | 7 | has_network_security_group = var.network_security_group != null && var.network_security_group != "" 8 | has_route_tables = var.route_tables != null && length(var.route_tables) > 0 9 | has_nat_gateways = var.nat_gateways != null && length(var.nat_gateways) > 0 10 | has_disk_encryption_set = var.disk_encryption_set != null && var.disk_encryption_set != "" 11 | } 12 | 13 | # 14 | # object ids 15 | # 16 | locals { 17 | # network object ids 18 | vnet_id = "${local.network_api_path_prefix}/virtualNetworks/${var.vnet}" 19 | subnet_ids = [for s in var.subnets : "${local.vnet_id}/subnets/${s}"] 20 | network_security_group_id = local.has_network_security_group ? "${local.network_api_path_prefix}/networkSecurityGroups/${var.network_security_group}" : null 21 | route_table_ids = local.has_route_tables ? [for route_table in var.route_tables : "${local.network_api_path_prefix}/routeTables/${route_table}"] : [] 22 | nat_gateway_ids = local.has_nat_gateways ? [for nat_gateway in var.nat_gateways : "${local.network_api_path_prefix}/natGateways/${nat_gateway}"] : [] 23 | 24 | # other object ids 25 | disk_encryption_set_id = local.has_disk_encryption_set ? "${local.aro_resource_group_id}/providers/Microsoft.Compute/diskEncryptionSets/${var.disk_encryption_set}" : null 26 | } 27 | 28 | # 29 | # cluster service principal permissions 30 | # 31 | locals { 32 | # skip the aad check if we create the service principal to avoid a condition 33 | # where AAD is not fully synced when we create the role assignment 34 | skip_aad_check = var.cluster_service_principal.create 35 | } 36 | 37 | # permission 1: assign cluster identity with appropriate vnet permissions 38 | resource "azurerm_role_assignment" "cluster_vnet" { 39 | scope = local.vnet_id 40 | role_definition_id = local.has_custom_network_role ? azurerm_role_definition.network[0].role_definition_resource_id : null 41 | role_definition_name = local.has_custom_network_role ? null : "Network Contributor" 42 | principal_id = local.cluster_service_principal_object_id 43 | skip_service_principal_aad_check = local.skip_aad_check 44 | } 45 | 46 | 47 | resource "azurerm_role_assignment" "cluster_vnet_subnets" { 48 | for_each = toset(local.subnet_ids) 49 | 50 | scope = each.value 51 | role_definition_id = local.has_custom_network_role ? azurerm_role_definition.subnet[0].role_definition_resource_id : null 52 | role_definition_name = local.has_custom_network_role ? null : "Network Contributor" 53 | principal_id = local.cluster_service_principal_object_id 54 | skip_service_principal_aad_check = local.skip_aad_check 55 | } 56 | 57 | resource "azurerm_role_assignment" "cluster_route_tables" { 58 | for_each = { for idx, rt_id in local.route_table_ids : rt_id => idx } 59 | 60 | scope = each.key 61 | role_definition_id = local.has_custom_network_role ? azurerm_role_definition.network_route_tables[each.value].role_definition_resource_id : null 62 | role_definition_name = local.has_custom_network_role ? null : "Network Contributor" 63 | principal_id = local.cluster_service_principal_object_id 64 | skip_service_principal_aad_check = local.skip_aad_check 65 | } 66 | 67 | resource "azurerm_role_assignment" "cluster_nat_gateways" { 68 | for_each = { for idx, ng_id in local.nat_gateway_ids : ng_id => idx } 69 | 70 | scope = each.key 71 | role_definition_id = local.has_custom_network_role ? azurerm_role_definition.network_nat_gateways[each.value].role_definition_resource_id : null 72 | role_definition_name = local.has_custom_network_role ? null : "Network Contributor" 73 | principal_id = local.cluster_service_principal_object_id 74 | skip_service_principal_aad_check = local.skip_aad_check 75 | } 76 | 77 | # permission 2: assign cluster identity with appropriate network security group permissions 78 | resource "azurerm_role_assignment" "cluster_network_security_group" { 79 | count = local.has_network_security_group ? 1 : 0 80 | 81 | scope = local.network_security_group_id 82 | role_definition_id = local.has_custom_network_role ? azurerm_role_definition.network_network_security_group[0].role_definition_resource_id : null 83 | role_definition_name = local.has_custom_network_role ? null : "Network Contributor" 84 | principal_id = local.cluster_service_principal_object_id 85 | skip_service_principal_aad_check = local.skip_aad_check 86 | } 87 | 88 | # permission 3: assign cluster identity with contributor permissions on the aro resource group 89 | resource "azurerm_role_assignment" "cluster_aro_resource_group" { 90 | scope = local.aro_resource_group_id 91 | role_definition_name = "Contributor" 92 | principal_id = local.cluster_service_principal_object_id 93 | skip_service_principal_aad_check = local.skip_aad_check 94 | } 95 | 96 | # permission 4: assign cluster identity with appropriate disk encryption set permissions 97 | resource "azurerm_role_assignment" "cluster_disk_encryption_set" { 98 | count = local.has_custom_des_role ? 1 : 0 99 | 100 | scope = local.disk_encryption_set_id 101 | role_definition_id = local.has_custom_des_role ? azurerm_role_definition.des[0].role_definition_resource_id : null 102 | principal_id = local.cluster_service_principal_object_id 103 | skip_service_principal_aad_check = local.skip_aad_check 104 | } 105 | 106 | # NOTE: Federated credentials are only used with managed identities/workload identities 107 | # This module is for service principals only, so this resource is not needed 108 | 109 | # 110 | # installer service principal permissions 111 | # 112 | 113 | # permission 5: assign installer identity with appropriate aro resource group permissions 114 | resource "azurerm_role_assignment" "installer_aro_resource_group" { 115 | scope = local.aro_resource_group_id 116 | role_definition_id = local.has_custom_aro_role ? azurerm_role_definition.aro[0].role_definition_resource_id : null 117 | role_definition_name = local.has_custom_aro_role ? null : "Contributor" 118 | principal_id = local.installer_object_id 119 | skip_service_principal_aad_check = var.installer_service_principal.create 120 | } 121 | 122 | # permission 6: assign installer identity reader to the network resource group if using a cli installation 123 | resource "azurerm_role_assignment" "installer_network_resource_group" { 124 | count = var.installation_type == "cli" ? 1 : 0 125 | 126 | scope = local.network_resource_group_id 127 | role_definition_name = "Reader" 128 | principal_id = local.installer_object_id 129 | skip_service_principal_aad_check = var.installer_service_principal.create 130 | } 131 | 132 | # permission 7: assign installer identity user access admin to the subscription if using a cli installation 133 | resource "azurerm_role_assignment" "installer_subscription" { 134 | count = var.installation_type == "cli" ? 1 : 0 135 | 136 | scope = "/subscriptions/${var.subscription_id}" 137 | role_definition_name = "User Access Administrator" 138 | principal_id = local.installer_object_id 139 | skip_service_principal_aad_check = var.installer_service_principal.create 140 | } 141 | 142 | # permission 8: assign installer identity directory reader in azure ad if using a cli installation 143 | # NOTE: 144 | # - The role ID for this role definition will always be 88d8e3e3-8f55-4a1e-953a-9b9898b8876b 145 | # - https://learn.microsoft.com/en-us/entra/identity/role-based-access-control/permissions-reference?toc=%2Fgraph%2Ftoc.json#directory-readers 146 | locals { 147 | directory_reader_role_id = "88d8e3e3-8f55-4a1e-953a-9b9898b8876b" 148 | } 149 | 150 | resource "azuread_directory_role_assignment" "installer_directory" { 151 | count = var.installation_type == "cli" ? 1 : 0 152 | 153 | role_id = local.directory_reader_role_id 154 | principal_object_id = local.installer_object_id 155 | } 156 | 157 | # permission 9: assign installer identity with appropriate vnet permissions 158 | resource "azurerm_role_assignment" "installer_vnet" { 159 | count = var.installation_type == "cli" ? 1 : 0 160 | 161 | scope = local.vnet_id 162 | role_definition_id = local.has_custom_network_role ? azurerm_role_definition.network[0].role_definition_resource_id : null 163 | role_definition_name = local.has_custom_network_role ? null : "Network Contributor" 164 | principal_id = local.installer_object_id 165 | } 166 | 167 | # 168 | # resource provider service principal permissions 169 | # 170 | 171 | # permission 10: assign resource provider service principal with appropriate vnet permissions 172 | resource "azurerm_role_assignment" "resource_provider_vnet" { 173 | scope = local.vnet_id 174 | role_definition_id = local.has_custom_network_role ? azurerm_role_definition.network[0].role_definition_resource_id : null 175 | role_definition_name = local.has_custom_network_role ? null : "Network Contributor" 176 | principal_id = data.azuread_service_principal.aro_resource_provider.object_id 177 | } 178 | 179 | resource "azurerm_role_assignment" "resource_provider_route_tables" { 180 | count = length(local.route_table_ids) 181 | 182 | scope = local.route_table_ids[count.index] 183 | role_definition_id = local.has_custom_network_role ? azurerm_role_definition.network_route_tables[count.index].role_definition_resource_id : null 184 | role_definition_name = local.has_custom_network_role ? null : "Network Contributor" 185 | principal_id = data.azuread_service_principal.aro_resource_provider.object_id 186 | } 187 | 188 | resource "azurerm_role_assignment" "resource_provider_nat_gateways" { 189 | count = length(local.nat_gateway_ids) 190 | 191 | scope = local.nat_gateway_ids[count.index] 192 | role_definition_id = local.has_custom_network_role ? azurerm_role_definition.network_nat_gateways[0].role_definition_resource_id : null 193 | role_definition_name = local.has_custom_network_role ? null : "Network Contributor" 194 | principal_id = data.azuread_service_principal.aro_resource_provider.object_id 195 | } 196 | 197 | # permission 11: assign resource provider service principal with appropriate network security group permissions 198 | resource "azurerm_role_assignment" "resource_provider_network_security_group" { 199 | count = local.has_network_security_group ? 1 : 0 200 | 201 | scope = local.network_security_group_id 202 | role_definition_id = local.has_custom_network_role ? azurerm_role_definition.network_network_security_group[0].role_definition_resource_id : null 203 | role_definition_name = local.has_custom_network_role ? null : "Network Contributor" 204 | principal_id = data.azuread_service_principal.aro_resource_provider.object_id 205 | } 206 | 207 | # permission 12: assign resource provider service principal with appropriate disk encryption set permissions 208 | resource "azurerm_role_assignment" "resource_provider_disk_encryption_set" { 209 | count = local.has_custom_des_role ? 1 : 0 210 | 211 | scope = local.disk_encryption_set_id 212 | role_definition_id = local.has_custom_des_role ? azurerm_role_definition.des[0].role_definition_resource_id : null 213 | principal_id = data.azuread_service_principal.aro_resource_provider.object_id 214 | } 215 | -------------------------------------------------------------------------------- /LICENSE.txt: -------------------------------------------------------------------------------- 1 | 2 | Apache License 3 | Version 2.0, January 2004 4 | http://www.apache.org/licenses/ 5 | 6 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 7 | 8 | 1. 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We also recommend that a 186 | file or class name and description of purpose be included on the 187 | same "printed page" as the copyright notice for easier 188 | identification within third-party archives. 189 | 190 | Copyright 2022 Managed OpenShift Black Belt Team 191 | 192 | Licensed under the Apache License, Version 2.0 (the "License"); 193 | you may not use this file except in compliance with the License. 194 | You may obtain a copy of the License at 195 | 196 | http://www.apache.org/licenses/LICENSE-2.0 197 | 198 | Unless required by applicable law or agreed to in writing, software 199 | distributed under the License is distributed on an "AS IS" BASIS, 200 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 201 | See the License for the specific language governing permissions and 202 | limitations under the License. 203 | -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | .DEFAULT_GOAL := help 2 | 3 | .PHONY: help 4 | help: 5 | less ./README.md 6 | 7 | .PHONY: tfvars 8 | tfvars: 9 | cp ./terraform.tfvars.example terraform.tfvars 10 | 11 | .PHONY: init 12 | init: 13 | terraform init -upgrade 14 | 15 | .PHONY: create 16 | create: init 17 | # NOTE: aro_version is optional - latest version will be auto-detected if not provided 18 | terraform plan -out aro.plan \ 19 | -var "subscription_id=$(shell az account show --query id --output tsv)" \ 20 | -var "cluster_name=aro-$(shell whoami)" 21 | 22 | terraform apply aro.plan 23 | 24 | .PHONY: create-private 25 | create-private: init 26 | # NOTE: aro_version is optional - latest version will be auto-detected if not provided 27 | terraform plan -out aro.plan \ 28 | -var "cluster_name=aro-$(shell whoami)" \ 29 | -var "restrict_egress_traffic=true" \ 30 | -var "api_server_profile=Private" \ 31 | -var "ingress_profile=Private" \ 32 | -var "outbound_type=UserDefinedRouting" \ 33 | -var "subscription_id=$(shell az account show --query id --output tsv)" \ 34 | -var "acr_private=false" 35 | 36 | terraform apply aro.plan 37 | 38 | .PHONY: create-private-noegress 39 | create-private-noegress: init 40 | # NOTE: aro_version is optional - latest version will be auto-detected if not provided 41 | terraform plan -out aro.plan \ 42 | -var "cluster_name=aro-$(shell whoami)" \ 43 | -var "restrict_egress_traffic=false" \ 44 | -var "api_server_profile=Private" \ 45 | -var "ingress_profile=Private" \ 46 | -var "subscription_id=$(shell az account show --query id --output tsv)" 47 | 48 | terraform apply aro.plan 49 | 50 | .PHONY: create-managed-identity 51 | create-managed-identity: init 52 | # NOTE: Deploys ARO cluster with managed identities (preview feature) 53 | # NOTE: aro_version is optional - latest version will be auto-detected if not provided 54 | terraform plan -out aro.plan \ 55 | -var "subscription_id=$(shell az account show --query id --output tsv)" \ 56 | -var "cluster_name=aro-$(shell whoami)" \ 57 | -var "enable_managed_identities=true" 58 | 59 | terraform apply aro.plan 60 | 61 | .PHONY: create-private-managed-identity 62 | create-private-managed-identity: init 63 | # NOTE: Deploys private ARO cluster with managed identities (preview feature) 64 | # NOTE: aro_version is optional - latest version will be auto-detected if not provided 65 | terraform plan -out aro.plan \ 66 | -var "cluster_name=aro-$(shell whoami)" \ 67 | -var "enable_managed_identities=true" \ 68 | -var "restrict_egress_traffic=true" \ 69 | -var "api_server_profile=Private" \ 70 | -var "ingress_profile=Private" \ 71 | -var "outbound_type=UserDefinedRouting" \ 72 | -var "subscription_id=$(shell az account show --query id --output tsv)" \ 73 | -var "acr_private=false" 74 | 75 | terraform apply aro.plan 76 | 77 | .PHONY: delete 78 | delete: destroy 79 | 80 | .PHONY: destroy 81 | destroy: 82 | # NOTE: Check if this is a managed identity cluster - if so, use destroy-managed-identity instead 83 | @bash -c '\ 84 | set -e; \ 85 | if terraform state list 2>/dev/null | grep -q "azurerm_resource_group_template_deployment.cluster_managed_identity"; then \ 86 | echo "❌ Error: This is a managed identity cluster."; \ 87 | echo ""; \ 88 | echo "Managed identity clusters require special destroy handling."; \ 89 | echo "Please use: make destroy-managed-identity"; \ 90 | echo ""; \ 91 | exit 1; \ 92 | fi; \ 93 | echo "Destroying ARO cluster resources (service principal)..."; \ 94 | terraform destroy -auto-approve -var "subscription_id=$$(az account show --query id --output tsv)"' 95 | 96 | .PHONY: destroy-managed-identity 97 | destroy-managed-identity: 98 | # NOTE: Destroy order is critical for managed identity clusters - cluster must be deleted BEFORE modules 99 | # ARM template deployments require explicit wait/verification to prevent network resource destruction conflicts 100 | @./scripts/destroy-managed-identity.sh 101 | 102 | 103 | 104 | .PHONY: clean 105 | clean: 106 | rm -rf terraform.tfstate* 107 | rm -rf .terraform* 108 | 109 | .PHONY: show_credentials 110 | show_credentials: 111 | @bash -c '\ 112 | set -e; \ 113 | echo "Retrieving ARO cluster credentials..."; \ 114 | CLUSTER_NAME=$$(terraform output -raw cluster_name 2>/dev/null) || { echo "Error: Could not get cluster_name from terraform output. Make sure terraform has been applied."; exit 1; }; \ 115 | RESOURCE_GROUP=$$(terraform output -raw resource_group_name 2>/dev/null) || { echo "Error: Could not get resource_group_name from terraform output. Make sure terraform has been applied."; exit 1; }; \ 116 | API_URL=$$(terraform output -raw api_url 2>/dev/null) || { echo "Error: Could not get api_url from terraform output. Make sure terraform has been applied."; exit 1; }; \ 117 | CONSOLE_URL=$$(terraform output -raw console_url 2>/dev/null) || { echo "Error: Could not get console_url from terraform output. Make sure terraform has been applied."; exit 1; }; \ 118 | echo "Cluster: $$CLUSTER_NAME"; \ 119 | echo "Resource Group: $$RESOURCE_GROUP"; \ 120 | echo "API URL: $$API_URL"; \ 121 | echo "Console URL: $$CONSOLE_URL"; \ 122 | echo ""; \ 123 | CREDS_JSON=$$(az aro list-credentials --name $$CLUSTER_NAME --resource-group $$RESOURCE_GROUP --output json 2>/dev/null) || { echo "Error: Could not get cluster credentials. Make sure you'\''re logged into Azure CLI."; exit 1; }; \ 124 | if command -v jq >/dev/null 2>&1; then \ 125 | KUBEADMIN_USERNAME=$$(echo $$CREDS_JSON | jq -r ".kubeadminUsername" 2>/dev/null); \ 126 | KUBEADMIN_PASSWORD=$$(echo $$CREDS_JSON | jq -r ".kubeadminPassword" 2>/dev/null); \ 127 | else \ 128 | KUBEADMIN_USERNAME=$$(echo $$CREDS_JSON | grep -o "\"kubeadminUsername\": \"[^\"]*\"" | cut -d"\"" -f4); \ 129 | KUBEADMIN_PASSWORD=$$(echo $$CREDS_JSON | grep -o "\"kubeadminPassword\": \"[^\"]*\"" | cut -d"\"" -f4); \ 130 | fi; \ 131 | if [ -z "$$KUBEADMIN_USERNAME" ] || [ -z "$$KUBEADMIN_PASSWORD" ]; then \ 132 | echo "Error: Could not extract credentials from az aro list-credentials output"; \ 133 | exit 1; \ 134 | fi; \ 135 | echo "Username: $$KUBEADMIN_USERNAME"; \ 136 | echo "Password: $$KUBEADMIN_PASSWORD"; \ 137 | echo ""; \ 138 | echo "To login, run: oc login $$API_URL --username=$$KUBEADMIN_USERNAME --password=$$KUBEADMIN_PASSWORD --insecure-skip-tls-verify=true"; \ 139 | echo "Or use: make login"' 140 | 141 | .PHONY: login 142 | login: 143 | @bash -c '\ 144 | set -e; \ 145 | echo "Logging into ARO cluster..."; \ 146 | CLUSTER_NAME=$$(terraform output -raw cluster_name 2>/dev/null) || { echo "Error: Could not get cluster_name from terraform output. Make sure terraform has been applied."; exit 1; }; \ 147 | RESOURCE_GROUP=$$(terraform output -raw resource_group_name 2>/dev/null) || { echo "Error: Could not get resource_group_name from terraform output. Make sure terraform has been applied."; exit 1; }; \ 148 | API_URL=$$(terraform output -raw api_url 2>/dev/null) || { echo "Error: Could not get api_url from terraform output. Make sure terraform has been applied."; exit 1; }; \ 149 | echo "Cluster: $$CLUSTER_NAME"; \ 150 | echo "Resource Group: $$RESOURCE_GROUP"; \ 151 | echo "API URL: $$API_URL"; \ 152 | CREDS_JSON=$$(az aro list-credentials --name $$CLUSTER_NAME --resource-group $$RESOURCE_GROUP --output json 2>/dev/null) || { echo "Error: Could not get cluster credentials. Make sure you'\''re logged into Azure CLI."; exit 1; }; \ 153 | if command -v jq >/dev/null 2>&1; then \ 154 | KUBEADMIN_USERNAME=$$(echo $$CREDS_JSON | jq -r ".kubeadminUsername" 2>/dev/null); \ 155 | KUBEADMIN_PASSWORD=$$(echo $$CREDS_JSON | jq -r ".kubeadminPassword" 2>/dev/null); \ 156 | else \ 157 | KUBEADMIN_USERNAME=$$(echo $$CREDS_JSON | grep -o "\"kubeadminUsername\": \"[^\"]*\"" | cut -d"\"" -f4); \ 158 | KUBEADMIN_PASSWORD=$$(echo $$CREDS_JSON | grep -o "\"kubeadminPassword\": \"[^\"]*\"" | cut -d"\"" -f4); \ 159 | fi; \ 160 | if [ -z "$$KUBEADMIN_USERNAME" ] || [ -z "$$KUBEADMIN_PASSWORD" ]; then \ 161 | echo "Error: Could not extract credentials from az aro list-credentials output"; \ 162 | exit 1; \ 163 | fi; \ 164 | echo "Logging in as kubeadmin..."; \ 165 | oc login $$API_URL --username=$$KUBEADMIN_USERNAME --password=$$KUBEADMIN_PASSWORD --insecure-skip-tls-verify=true || { echo "Error: oc login failed. Make sure '\''oc'\'' CLI is installed."; exit 1; }; \ 166 | echo "Successfully logged into ARO cluster!"' 167 | 168 | # MOBB RULES Standard Targets 169 | 170 | .PHONY: validate 171 | validate: init 172 | terraform validate 173 | 174 | .PHONY: fmt 175 | fmt: 176 | terraform fmt -check -recursive 177 | 178 | .PHONY: fmt-fix 179 | fmt-fix: 180 | terraform fmt -recursive 181 | 182 | .PHONY: check 183 | check: validate fmt 184 | 185 | .PHONY: lint 186 | lint: check 187 | @echo "Linting: Running terraform validate and fmt checks" 188 | @echo "Note: Additional linting tools can be added here" 189 | 190 | .PHONY: test 191 | test: init 192 | @echo "Running full test suite..." 193 | @echo "Running Terraform validate..." 194 | @terraform validate || { echo "ERROR: Terraform validate failed" >&2; exit 1; } 195 | @echo "Running Terraform fmt -check..." 196 | @terraform fmt -check -recursive || { echo "ERROR: Terraform fmt -check failed. Run 'make fmt-fix' to fix." >&2; exit 1; } 197 | @if command -v tflint >/dev/null 2>&1; then \ 198 | echo "Running tflint..."; \ 199 | tflint --init || true; \ 200 | tflint || { echo "ERROR: tflint failed" >&2; exit 1; }; \ 201 | else \ 202 | echo "⚠ tflint not found (optional - install with: brew install tflint)"; \ 203 | fi 204 | @if command -v checkov >/dev/null 2>&1; then \ 205 | CHECKOV_VERSION=$$(checkov --version 2>/dev/null | grep -oE '[0-9]+\.[0-9]+\.[0-9]+' | head -1 || echo "unknown"); \ 206 | EXPECTED_VERSION="3.2.495"; \ 207 | if [ "$$CHECKOV_VERSION" != "$$EXPECTED_VERSION" ] && [ "$$CHECKOV_VERSION" != "unknown" ]; then \ 208 | echo "⚠ Warning: checkov version $$CHECKOV_VERSION detected, but CI uses $$EXPECTED_VERSION"; \ 209 | echo " Install with: pip install checkov==$$EXPECTED_VERSION"; \ 210 | fi; \ 211 | echo "Running checkov security scan..."; \ 212 | checkov -d . --framework terraform --quiet || { echo "ERROR: checkov security scan failed" >&2; exit 1; }; \ 213 | else \ 214 | echo "⚠ checkov not found (optional - install with: pip install checkov==3.2.495)"; \ 215 | fi 216 | @echo "Running Terraform plan (dry-run)..." 217 | @SUBSCRIPTION_ID=$$(az account show --query id --output tsv 2>/dev/null || echo ""); \ 218 | if [ -z "$$SUBSCRIPTION_ID" ]; then \ 219 | echo "⚠ Warning: Azure CLI not logged in, skipping terraform plan"; \ 220 | echo " Run 'az login' and 'az account set --subscription ' to enable plan test"; \ 221 | else \ 222 | terraform plan -out=test.plan -var "subscription_id=$$SUBSCRIPTION_ID" -var "cluster_name=test-cluster" -var "domain=test.example.com" -lock=false || { echo "ERROR: Terraform plan failed" >&2; rm -f test.plan; exit 1; }; \ 223 | rm -f test.plan; \ 224 | fi 225 | @echo "" 226 | @echo "✓ All tests passed!" 227 | 228 | .PHONY: pr 229 | pr: init 230 | @echo "Running pre-commit checks..." 231 | @echo "Running Terraform validate..." 232 | @terraform validate || { echo "ERROR: Terraform validate failed" >&2; exit 1; } 233 | @echo "Running Terraform fmt -check..." 234 | @terraform fmt -check -recursive || { echo "ERROR: Terraform fmt -check failed. Run 'make fmt-fix' to fix." >&2; exit 1; } 235 | @if command -v tflint >/dev/null 2>&1; then \ 236 | echo "Running tflint..."; \ 237 | tflint --init || true; \ 238 | tflint || { echo "ERROR: tflint failed" >&2; exit 1; }; \ 239 | else \ 240 | echo "⚠ tflint not found (optional - install with: brew install tflint)"; \ 241 | fi 242 | @if command -v checkov >/dev/null 2>&1; then \ 243 | CHECKOV_VERSION=$$(checkov --version 2>/dev/null | grep -oE '[0-9]+\.[0-9]+\.[0-9]+' | head -1 || echo "unknown"); \ 244 | EXPECTED_VERSION="3.2.495"; \ 245 | if [ "$$CHECKOV_VERSION" != "$$EXPECTED_VERSION" ] && [ "$$CHECKOV_VERSION" != "unknown" ]; then \ 246 | echo "⚠ Warning: checkov version $$CHECKOV_VERSION detected, but CI uses $$EXPECTED_VERSION"; \ 247 | echo " Install with: pip install checkov==$$EXPECTED_VERSION"; \ 248 | fi; \ 249 | echo "Running checkov security scan..."; \ 250 | checkov -d . --framework terraform --quiet || { echo "ERROR: checkov security scan failed" >&2; exit 1; }; \ 251 | else \ 252 | echo "⚠ checkov not found (optional - install with: pip install checkov==3.2.495)"; \ 253 | fi 254 | @echo "" 255 | @echo "✓ All pre-commit checks passed! (plan skipped - use 'make test' for full test suite)" 256 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Using Terraform to build an ARO cluster 2 | 3 | Azure Red Hat OpenShift (ARO) is a fully-managed turnkey application platform. 4 | 5 | Supports Public ARO clusters and Private ARO clusters. 6 | 7 | ## Setup 8 | 9 | Using the code in the repo will require having the following tools installed: 10 | 11 | - The Terraform CLI (>= 1.12) 12 | - The Azure CLI (`az`) 13 | - The OC CLI (for cluster access) 14 | 15 | Optional tools (for enhanced testing): 16 | - tflint (for Terraform linting) 17 | - checkov (for security scanning) 18 | 19 | ## Create the ARO cluster and required infrastructure 20 | 21 | ### Public ARO cluster 22 | 23 | 1. Create a local variables file 24 | 25 | ```bash 26 | make tfvars 27 | ``` 28 | 29 | 1. Modify the `terraform.tfvars` var file, you can use the `variables.tf` to see the full list of variables that can be set. 30 | 31 | >NOTE: You can define the subscription_id needed for the Auth using ```export TF_VAR_subscription_id="xxx"``` as well. 32 | 33 | 1. Deploy your cluster 34 | 35 | ```bash 36 | make create 37 | ``` 38 | 39 | NOTE: By default the ingress_profile and the api_server_profile is both Public, but can be change using the [TF variables](https://github.com/rh-mobb/terraform-aro/blob/main/01-variables.tf). 40 | 41 | NOTE: The `aro_version` variable is optional. If not specified, the latest available ARO version for your region will be automatically detected using `az aro get-versions -l `. 42 | 43 | ### Private ARO cluster 44 | 45 | 1. Modify the `terraform.tfvars` var file, you can use the `variables.tf` to see the full list of variables that can be set. 46 | 47 | ```bash 48 | make create-private 49 | ``` 50 | 51 | >NOTE: restrict_egress_traffic=true will secure ARO cluster by routing [Egress traffic through an Azure Firewall](https://learn.microsoft.com/en-us/azure/openshift/howto-restrict-egress). 52 | 53 | >NOTE2: Private Clusters can be created [without Public IP using the UserDefineRouting](https://learn.microsoft.com/en-us/azure/openshift/howto-create-private-cluster-4x#create-a-private-cluster-without-a-public-ip-address) flag in the outboundtype=UserDefineRouting variable. By default LoadBalancer is used for the egress. 54 | 55 | ### ARO Managed Identities (Preview) 56 | 57 | Azure Red Hat OpenShift supports managed identities (currently in tech preview) as an alternative to service principals. Managed identities provide enhanced security by eliminating the need to manage credentials. 58 | 59 | **Important Notes:** 60 | - This feature is currently in **tech preview** and not recommended for production use 61 | - Managed identities require ARM template deployment (the `azurerm_redhat_openshift_cluster` resource doesn't yet support managed identities) 62 | - The aro-permissions module automatically creates 9 managed identities when enabled 63 | - Existing clusters using service principals cannot be migrated to managed identities 64 | 65 | **To enable managed identities:** 66 | 67 | **Option 1: Using Makefile (Recommended)** 68 | 69 | Deploy a public cluster with managed identities: 70 | ```bash 71 | make create-managed-identity 72 | ``` 73 | 74 | Deploy a private cluster with managed identities: 75 | ```bash 76 | make create-private-managed-identity 77 | ``` 78 | 79 | **Option 2: Using terraform.tfvars** 80 | 81 | 1. Set `enable_managed_identities = true` in your `terraform.tfvars`: 82 | 83 | ```hcl 84 | enable_managed_identities = true 85 | ``` 86 | 87 | 2. Deploy your cluster as usual: 88 | 89 | ```bash 90 | make create 91 | ``` 92 | 93 | When `enable_managed_identities = true`: 94 | - The aro-permissions module creates 9 user-assigned managed identities 95 | - Role assignments are automatically configured for network resources 96 | - The cluster is deployed via ARM template with `platformWorkloadIdentityProfile` configuration 97 | - All cluster outputs work the same way as service principal deployments 98 | 99 | **Known Limitations:** 100 | - **Network Security Groups (NSGs):** Managed identity clusters currently cannot have NSGs attached to the control plane and worker subnets. The NSG resource is still created (required for managed identity permissions), but it is not associated with the subnets. This is a current limitation of the managed identity preview feature. For production deployments requiring NSG protection, consider using service principal-based deployments until this limitation is resolved. 101 | 102 | For more information, see the [Microsoft documentation on ARO managed identities](https://learn.microsoft.com/en-us/azure/openshift/howto-create-openshift-cluster?pivots=aro-deploy-az-cli). 103 | 104 | ## Test Connectivity 105 | 106 | ### Quick Login (Recommended) 107 | 108 | After deploying your cluster, you can log in using the `make login` target: 109 | 110 | ```bash 111 | make login 112 | ``` 113 | 114 | This command will: 115 | - Automatically retrieve cluster information from Terraform outputs 116 | - Fetch kubeadmin credentials from Azure 117 | - Log you into the OpenShift cluster using `oc login` 118 | 119 | ### Manual Login Steps 120 | 121 | If you prefer to log in manually or need to access cluster information directly: 122 | 123 | 1. Get the ARO cluster's api server URL. 124 | 125 | ```bash 126 | ARO_URL=$(terraform output -raw api_url) 127 | echo $ARO_URL 128 | ``` 129 | 130 | 1. Get the ARO cluster's Console URL 131 | 132 | ```bash 133 | CONSOLE_URL=$(terraform output -raw console_url) 134 | echo $CONSOLE_URL 135 | ``` 136 | 137 | 1. Get the ARO cluster's credentials. 138 | 139 | ```bash 140 | CLUSTER_NAME=$(terraform output -raw cluster_name) 141 | RESOURCE_GROUP=$(terraform output -raw resource_group_name) 142 | ARO_USERNAME=$(az aro list-credentials -n $CLUSTER_NAME -g $RESOURCE_GROUP -o json | jq -r '.kubeadminUsername') 143 | ARO_PASSWORD=$(az aro list-credentials -n $CLUSTER_NAME -g $RESOURCE_GROUP -o json | jq -r '.kubeadminPassword') 144 | echo $ARO_PASSWORD 145 | echo $ARO_USERNAME 146 | ``` 147 | 148 | ### Public Test Connectivity 149 | 150 | 1. Log into the cluster using oc login command. ex. 151 | 152 | ```bash 153 | oc login $ARO_URL -u $ARO_USERNAME -p $ARO_PASSWORD 154 | ``` 155 | 156 | Or simply use: 157 | 158 | ```bash 159 | make login 160 | ``` 161 | 162 | 1. Check that you can access the Console by opening the console url in your browser. 163 | 164 | ### Private Test Connectivity 165 | 166 | 1. Save the jump host public IP address 167 | 168 | ```bash 169 | JUMP_IP=$(terraform output -raw public_ip) 170 | echo $JUMP_IP 171 | ``` 172 | 173 | Or get it manually: 174 | 175 | ```bash 176 | CLUSTER_NAME=$(terraform output -raw cluster_name) 177 | RESOURCE_GROUP=$(terraform output -raw resource_group_name) 178 | JUMP_IP=$(az vm list-ip-addresses -g $RESOURCE_GROUP -n $CLUSTER_NAME-jumphost -o tsv \ 179 | --query '[].virtualMachine.network.publicIpAddresses[0].ipAddress') 180 | echo $JUMP_IP 181 | ``` 182 | 183 | 1. update /etc/hosts to point the openshift domains to localhost. Use the DNS of your openshift cluster as described in the previous step in place of $YOUR_OPENSHIFT_DNS below 184 | 185 | ```bash 186 | 127.0.0.1 api.$YOUR_OPENSHIFT_DNS 187 | 127.0.0.1 console-openshift-console.apps.$YOUR_OPENSHIFT_DNS 188 | 127.0.0.1 oauth-openshift.apps.$YOUR_OPENSHIFT_DNS 189 | ``` 190 | 191 | 1. SSH to that instance, tunneling traffic for the appropriate hostnames. Be sure to use your new/existing private key, the OpenShift DNS for $YOUR_OPENSHIFT_DNS and your Jumphost IP 192 | 193 | ```bash 194 | sudo ssh -L 6443:api.$YOUR_OPENSHIFT_DNS:6443 \ 195 | -L 443:console-openshift-console.apps.$YOUR_OPENSHIFT_DNS:443 \ 196 | -L 80:console-openshift-console.apps.$YOUR_OPENSHIFT_DNS:80 \ 197 | aro@$JUMP_IP 198 | ``` 199 | 200 | 1. Log in using oc login 201 | 202 | ```bash 203 | oc login $ARO_URL -u $ARO_USERNAME -p $ARO_PASSWORD 204 | ``` 205 | 206 | Or use the automated login command (works from your local machine if you have SSH tunnel set up): 207 | 208 | ```bash 209 | make login 210 | ``` 211 | 212 | NOTE: Another option to connect to a Private ARO cluster jumphost is the usage of [sshuttle](https://sshuttle.readthedocs.io/en/stable/index.html). If we suppose that we deployed ARO vnet with the `10.0.0.0/20` CIDR we can connect to the cluster using (both API and Console): 213 | 214 | ```bash 215 | sshuttle --dns -NHr aro@$JUMP_IP 10.0.0.0/20 --daemon 216 | ``` 217 | 218 | and opening a browser the `api.$YOUR_OPENSHIFT_DNS` and `console-openshift-console.apps.$YOUR_OPENSHIFT_DNS` will be reachable. 219 | 220 | ## Development and Testing 221 | 222 | ### Running Tests 223 | 224 | Before committing changes, run the pre-commit checks: 225 | 226 | ```bash 227 | make pr 228 | ``` 229 | 230 | This will run: 231 | - Terraform validate 232 | - Terraform fmt check 233 | - tflint (if installed) 234 | - checkov security scan (if installed) 235 | 236 | For a full test suite including terraform plan (requires Azure CLI login): 237 | 238 | ```bash 239 | make test 240 | ``` 241 | 242 | ### GitHub Actions 243 | 244 | This repository includes a GitHub Actions workflow that automatically runs pre-commit checks on: 245 | - Pull requests to `main` 246 | - Pushes to `main` 247 | 248 | The workflow will: 249 | - Run `make pr` to validate code 250 | - Post a comment on PRs with check results 251 | - Cache Terraform providers for faster runs 252 | 253 | See `.github/workflows/pr.yml` for details. 254 | 255 | ### Available Makefile Targets 256 | 257 | - `make help` - Show README 258 | - `make tfvars` - Create terraform.tfvars from example 259 | - `make init` - Initialize Terraform 260 | - `make create` - Create public ARO cluster 261 | - `make create-private` - Create private ARO cluster with egress restriction 262 | - `make create-private-noegress` - Create private ARO cluster without egress restriction 263 | - `make create-managed-identity` - Create public ARO cluster with managed identities (preview) 264 | - `make create-private-managed-identity` - Create private ARO cluster with managed identities (preview) 265 | - `make login` - Log into ARO cluster (requires cluster to be deployed) 266 | - `make destroy` - Destroy service principal-based cluster (non-interactive, uses -auto-approve) 267 | - `make destroy-managed-identity` - Destroy managed identity cluster (interactive, with wait/verification) 268 | - `make destroy-managed-identity.force` - Destroy managed identity cluster (non-interactive, with wait/verification) 269 | - `make clean` - Remove terraform state and providers 270 | - `make validate` - Run terraform validate 271 | - `make fmt` - Check terraform formatting 272 | - `make fmt-fix` - Fix terraform formatting 273 | - `make check` - Run validate and fmt checks 274 | - `make lint` - Run linting checks 275 | - `make test` - Run full test suite (requires Azure CLI) 276 | - `make pr` - Run pre-commit checks (no Azure CLI needed) 277 | 278 | ## Releasing a New Version 279 | 280 | This repository follows [Semantic Versioning](https://semver.org/) (MAJOR.MINOR.PATCH). 281 | 282 | ### Version Bumping Guidelines 283 | 284 | - **MAJOR** (1.0.0): Breaking changes (renamed variables, changed types, removed features) 285 | - **MINOR** (0.2.0): New features (new variables/outputs, backward-compatible additions) 286 | - **PATCH** (0.1.1): Bug fixes (fixes, documentation updates) 287 | 288 | ### Release Checklist 289 | 290 | When ready to release a new version: 291 | 292 | 1. **Ensure all tests pass:** 293 | ```bash 294 | make test 295 | ``` 296 | 297 | 2. **Update CHANGELOG.md:** 298 | - Move all `[Unreleased]` content to a new version section (e.g., `## [0.2.0] - YYYY-MM-DD`) 299 | - Add link at bottom: `[0.2.0]: https://github.com/rh-mobb/terraform-aro/releases/tag/v0.2.0` 300 | - Update `[Unreleased]` link: `[Unreleased]: https://github.com/rh-mobb/terraform-aro/compare/v0.2.0...HEAD` 301 | 302 | 3. **Update PLAN.md version** (if applicable) 303 | 304 | 4. **Commit changes:** 305 | ```bash 306 | git add CHANGELOG.md PLAN.md 307 | git commit -m "chore: prepare release v0.2.0" 308 | ``` 309 | 310 | 5. **Create annotated git tag:** 311 | ```bash 312 | git tag -a v0.2.0 -m "Release v0.2.0: Brief description of changes" 313 | ``` 314 | 315 | 6. **Push commits and tag:** 316 | ```bash 317 | git push origin main 318 | git push origin v0.2.0 319 | ``` 320 | 321 | 7. **Create GitHub Release** (optional but recommended): 322 | - Go to GitHub Releases page 323 | - Click "Draft a new release" 324 | - Select the tag (e.g., `v0.2.0`) 325 | - Copy CHANGELOG.md content as release notes 326 | - Publish release 327 | 328 | **Note:** During pre-1.0.0 phase, breaking changes can be in MINOR versions. Move to 1.0.0 when the API is stable. 329 | 330 | ## Cleanup 331 | 332 | ### Service Principal Clusters 333 | 334 | Delete cluster and all resources: 335 | 336 | ```bash 337 | make destroy 338 | ``` 339 | 340 | ### Managed Identity Clusters 341 | 342 | **Important:** Managed identity clusters require special destroy handling to ensure proper cleanup order. The destroy process will: 343 | 1. Delete the cluster first 344 | 2. Wait and verify the cluster is fully deleted (up to 10 minutes) 345 | 3. Then delete remaining resources (managed identities, networks, etc.) 346 | 347 | This prevents network resources from being destroyed while the cluster still exists. 348 | 349 | Delete managed identity cluster and all resources: 350 | 351 | ```bash 352 | make destroy-managed-identity.force 353 | ``` 354 | 355 | **Why a separate target?** Managed identity clusters use ARM template deployments which have different destroy behavior than native Terraform resources. The separate target ensures proper ordering and verification. 356 | --------------------------------------------------------------------------------