├── 1-as-diagram
    ├── README.md
    └── vm.png
├── 2-as-script
    ├── README.md
    └── freebsd-create-vm.sh
├── 3-as-code
    ├── README.md
    ├── k8s.json
    ├── k8s.tfvars
    ├── main.tf
    └── variables.tf
├── 4-as-software
    └── README.md
└── README.md


/1-as-diagram/README.md:
--------------------------------------------------------------------------------
 1 | # Infrastructure as a diagram
 2 | 
 3 | ### Virtual Machine
 4 | 
 5 | Here we have a simple diagram of infrastructure. 
 6 | 
 7 | <p align="center">
 8 |   <img src="vm.png">
 9 |   </image>
10 | </p>
11 | 


--------------------------------------------------------------------------------
/1-as-diagram/vm.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/krisnova/cloud-native-infrastructure-demo/57a9d6fc87e6aa3fc12d41c47eeb32720587f109/1-as-diagram/vm.png


--------------------------------------------------------------------------------
/2-as-script/README.md:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/krisnova/cloud-native-infrastructure-demo/57a9d6fc87e6aa3fc12d41c47eeb32720587f109/2-as-script/README.md


--------------------------------------------------------------------------------
/2-as-script/freebsd-create-vm.sh:
--------------------------------------------------------------------------------
1 | #!/bin/bash
2 | pkg install -y bash nano
3 | curl -L https://aka.ms/InstallAzureCli | bash
4 | az login
5 | az group delete -n infra-2 --yes
6 | az group create --name infra-2 --location eastus
7 | az vm create --resource-group infra-2 --name infra-2 --image UbuntuLTS --ssh-key-value "ssh-rsa 
8 | AAAAB3NzaC1yc2EAAAADAQABAAABAQC34QGJe1+MkcimmQmiRgZiZX5y7k/z7Y4W2H0WTnh/WhKkUvjRgWcd3A0kUb5MIW9zbRzBFIJBEBrm8HRlF4enXRACr+tVbHUqI5JO3xIEHKWkJHGf0Bg43+VW8X/7ftP7QPe5imet5TL+AqsC62Wq2aUTZMHag1R6xv4AGHHPNx/dbbRn26Mtrc8Jh4WJXtYfk3CDU46zHHUW+VInuDMFmtW4ykeyPqBaKQvrjr+XQm15vfsrtoaBG4JweKOD/LJLs+tiKtsVMf55sWZxdPdHLtO1/Rsb+Z+1wSeT8mM1tBanigShxmJeC0gZ8HQOO2OveF0jYUjMK4wPwGryPZkf" --admin-username kris
9 | 


--------------------------------------------------------------------------------
/3-as-code/README.md:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/krisnova/cloud-native-infrastructure-demo/57a9d6fc87e6aa3fc12d41c47eeb32720587f109/3-as-code/README.md


--------------------------------------------------------------------------------
/3-as-code/k8s.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "apiVersion": "vlabs",
 3 |   "properties": {
 4 |     "orchestratorProfile": {
 5 |       "orchestratorType": "Kubernetes"
 6 |     },
 7 |     "masterProfile": {
 8 |       "count": ${master_vm_count},
 9 |       "dnsPrefix": "${dns_prefix}",
10 |       "vmSize": "${vm_size}",
11 |       "vnetSubnetId": "${subnet_id}",
12 |       "firstConsecutiveStaticIP": "${first_master_ip}"
13 |     },
14 |     "agentPoolProfiles": [
15 |       {
16 |         "name": "agentpool1",
17 |         "count": ${worker_vm_count},
18 |         "vmSize": "${vm_size}",
19 |         "vnetSubnetId": "${subnet_id}",
20 |         "availabilityProfile": "AvailabilitySet"
21 |       }
22 |     ],
23 |     "linuxProfile": {
24 |       "adminUsername": "${admin_user}",
25 |       "ssh": {
26 |         "publicKeys": [
27 |           {
28 |             "keyData": "${ssh_key}"
29 |           }
30 |         ]
31 |       }
32 |     },
33 |     "servicePrincipalProfile": {
34 |       "servicePrincipalClientID": "${service_principle_client_id}",
35 |       "servicePrincipalClientSecret": "${service_principle_client_secret}"
36 |     }
37 |   }
38 | }
39 | 


--------------------------------------------------------------------------------
/3-as-code/k8s.tfvars:
--------------------------------------------------------------------------------
1 | azure_subscription_id = "<YOUR-AZURE-SUBSCRIPTION-ID-FOR-TERRAFORM>"
2 | azure_tenant_id       = "<YOUR-AZURE-TENANT-ID-FOR-TERRAFORM>"
3 | azure_client_id       = "<YOUR-AZURE-CLIENT-ID-FOR-TERRAFORM>"
4 | azure_client_secret   = "<YOUR-AZURE-CLIENT-SECRET-FOR-TERRAFORM>"
5 | 
6 | dns_prefix                      = "<YOUR-DNS-PREFIX>"
7 | ssh_key                         = "<YOUR-SSH-KEY>"
8 | 


--------------------------------------------------------------------------------
/3-as-code/main.tf:
--------------------------------------------------------------------------------
 1 | provider "azurerm" {
 2 |   subscription_id = "${var.azure_subscription_id}"
 3 |   client_id       = "${var.azure_client_id}"
 4 |   client_secret   = "${var.azure_client_secret}"
 5 |   tenant_id       = "${var.azure_tenant_id}"
 6 | }
 7 | 
 8 | # Azure Resource Group
 9 | resource "azurerm_resource_group" "default" {
10 |   name     = "${var.resource_group_name}"
11 |   location = "${var.azure_location}"
12 | }
13 | 
14 | # Azure Virtual Network
15 | resource "azurerm_virtual_network" "default" {
16 |   name                = "${var.virtualnetworkname}"
17 |   address_space       = ["${var.cidr}"]
18 |   location            = "${var.azure_location}"
19 |   resource_group_name = "${var.resource_group_name}"
20 |   depends_on = ["azurerm_resource_group.default"]
21 | }
22 | 
23 | # Azure Virtual Network -> Subnet
24 | resource "azurerm_subnet" "default" {
25 |   name                 = "${var.virtualnetworkname}_subnet"
26 |   resource_group_name  = "${var.resource_group_name}"
27 |   virtual_network_name = "${azurerm_virtual_network.default.name}"
28 |   address_prefix       = "${var.cidr_subnet}"
29 |   depends_on = ["azurerm_virtual_network.default"]
30 | }
31 | 
32 | output "virtualnetwork_subnet_default_id" {
33 |   value = "${azurerm_subnet.default.id}"
34 | }
35 | 
36 | # ACS Engine Config
37 | data "template_file" "acs_engine_config" {
38 |   template = "${file(var.acs_engine_config_file)}"
39 | 
40 |   vars {
41 |     master_vm_count = "${var.master_vm_count}"
42 |     dns_prefix = "${var.dns_prefix}"
43 |     vm_size = "${var.vm_size}"
44 |     subnet_id = "${azurerm_subnet.default.id}"
45 |     first_master_ip = "${var.first_master_ip}"
46 |     worker_vm_count = "${var.worker_vm_count}"
47 |     admin_user = "${var.admin_user}"
48 |     ssh_key = "${var.ssh_key}"
49 |     service_principle_client_id = "${var.azure_client_id}"
50 |     service_principle_client_secret = "${var.azure_client_secret}"
51 |   }
52 | 
53 |   depends_on = ["azurerm_subnet.default"]
54 | }
55 | 
56 | # Locally output the rendered ACS Engine Config (after substitution has been performed)
57 | resource "null_resource" "render_acs_engine_config" {
58 |   provisioner "local-exec" {
59 |     command = "echo '${data.template_file.acs_engine_config.rendered}' > ${var.acs_engine_config_file_rendered}"
60 |   }
61 | 
62 |   depends_on = ["data.template_file.acs_engine_config"]
63 | }
64 | 
65 | # Locally run the ACS Engine to produce the Azure Resource Template for the K8s cluster
66 | resource "null_resource" "run_acs_engine" {
67 |   provisioner "local-exec" {
68 |     command = "acs-engine generate ${var.acs_engine_config_file_rendered}"
69 |   }
70 | 
71 |   depends_on = ["null_resource.render_acs_engine_config"]
72 | }
73 | 
74 | # Locally run the Azure 2.0 CLI to create the resource deployment
75 | resource "null_resource" "deploy_acs" {
76 |   provisioner "local-exec" {
77 |     command = "az group deployment create --name ${var.cluster_name} --resource-group ${var.resource_group_name} --template-file ./$(find _output -name 'azuredeploy.json') --parameters @./$(find _output -name 'azuredeploy.parameters.json')"
78 |   }
79 | 
80 |   depends_on = ["null_resource.run_acs_engine"]
81 | }
82 | 
83 | # Locally run the Azure 2.0 CLI to fix the routes
84 | resource "null_resource" "fix_routetable" {
85 |   provisioner "local-exec" {
86 |     command = "az network vnet subnet update --name ${azurerm_subnet.default.name} --resource-group ${var.resource_group_name} --vnet-name ${azurerm_virtual_network.default.name} --route-table $(az resource list --resource-group ${var.resource_group_name} --resource-type Microsoft.Network/routeTables | jq -r '.[] | .id')"
87 |   }
88 | 
89 |   depends_on = ["null_resource.deploy_acs"]
90 | }
91 | 


--------------------------------------------------------------------------------
/3-as-code/variables.tf:
--------------------------------------------------------------------------------
 1 | variable "azure_subscription_id" {
 2 |   description = "Azure Subscription ID"
 3 | }
 4 | 
 5 | variable "azure_client_id" {
 6 |   description = "Azure Client ID"
 7 | }
 8 | 
 9 | variable "azure_client_secret" {
10 |   description = "Azure Client Secret"
11 | }
12 | 
13 | variable "azure_tenant_id" {
14 |   description = "Azure Tenant ID"
15 | }
16 | 
17 | variable "azure_location" {
18 |   description = "Azure Location, e.g. North Europe"
19 |   default = "North Europe"
20 | }
21 | 
22 | variable "resource_group_name" {
23 |   description = "Azure Resource Group Name"
24 |   default = "k8sexample"
25 | }
26 | 
27 | variable "virtualnetworkname" {
28 |   description = "Name of the virtual network"
29 |   default = "k8sexample_vnet"
30 | }
31 | 
32 | variable "cidr" {
33 |   description = "CIDR range of the VPC"
34 |   default = "172.20.0.0/16"
35 | }
36 | 
37 | variable "cidr_subnet" {
38 |   description = "CIDR range of the only subnet in the VPC"
39 |   default = "172.20.10.0/24"
40 | }
41 | 
42 | variable "acs_engine_config_file" {
43 |   description = "File name and location of the ACS Engine config file"
44 |   default = "k8s.json"
45 | }
46 | 
47 | variable "acs_engine_config_file_rendered" {
48 |   description = "File name and location of the ACS Engine config file"
49 |   default = "k8s_rendered.json"
50 | }
51 | 
52 | variable "master_vm_count" {
53 |   description = "Number of master VMs to create"
54 |   default = 1
55 | }
56 | 
57 | variable "dns_prefix" {
58 |   description = "DNS prefix for the cluster"
59 | }
60 | 
61 | variable "vm_size" {
62 |   description = "Azure VM type"
63 |   default = "Standard_A2"
64 | }
65 | 
66 | variable "first_master_ip" {
67 |   description = "First consecutive IP address to be assigned to master nodes"
68 |   default = "172.20.10.10"
69 | }
70 | 
71 | variable "worker_vm_count" {
72 |   description = "Number of worker VMs to initially create"
73 |   default = 1
74 | }
75 | 
76 | variable "admin_user" {
77 |   description = "Administrative username for the VMs"
78 |   default = "azureuser"
79 | }
80 | 
81 | variable "ssh_key" {
82 |   description = "SSH public key in PEM format to apply to VMs"
83 | }
84 | 
85 | variable "cluster_name" {
86 |   description = "Name of the K8s cluster"
87 |   default = "k8sexample-cluster"
88 | }
89 | 


--------------------------------------------------------------------------------
/4-as-software/README.md:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/krisnova/cloud-native-infrastructure-demo/57a9d6fc87e6aa3fc12d41c47eeb32720587f109/4-as-software/README.md


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # Cloud Native Infrastructure
 2 | 
 3 | ### Representing infrastructure
 4 | 
 5 | Various ways of representing and mutating infrastructure.
 6 | 
 7 | #### Infrastructure as a diagram
 8 | 
 9 | Using a technical diagram to share intended infrastructure topologies with other humans. [More information](/1-as-diagram/README.md)
10 | 
11 | #### Infrastructure as a script
12 | 
13 | Using a uni-directional script to mutate infrastructure topologies and using the script as a way to mutate infrastructure. [More information](/2-as-script/README.md)
14 | 
15 | #### Infrastructure as code
16 | 
17 | Using standardized templating to represent infrastructure. The templating can be interpolated, and contain logic. [More information](/3-as-code/README.md)
18 | 
19 | #### Infrastructure as software
20 | 
21 | Infrastructure is managed by a residual piece of software over time. In order to mutate infrastructure, the software must be running. [More information](/4-as-software)
22 | 


--------------------------------------------------------------------------------