├── .gitignore
├── README.md
└── terraform
    ├── eks-cluster.tf
    ├── main.tf
    ├── outputs.tf
    ├── terraform.tf
    ├── variables.tf
    └── vpc.tf


/.gitignore:
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1 | .terraform*
2 | DS_Store
3 | 


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/README.md:
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 1 | # Terraform code 
 2 | 
 3 | ## Maintain vpc & eks with terraform for vprofile project
 4 | 
 5 | ## Tools required
 6 | Terraform version 1.6.3
 7 | 
 8 | ### Steps
 9 | * terraform init
10 | * terraform fmt -check
11 | * terraform validate
12 | * terraform plan -out planfile
13 | * terraform apply -auto-approve -input=false -parallelism=1 planfile
14 | ####
15 | #####
16 | 


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/terraform/eks-cluster.tf:
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 1 | module "eks" {
 2 |   source  = "terraform-aws-modules/eks/aws"
 3 |   version = "19.19.1"
 4 | 
 5 |   cluster_name    = local.cluster_name
 6 |   cluster_version = "1.27"
 7 | 
 8 |   vpc_id                         = module.vpc.vpc_id
 9 |   subnet_ids                     = module.vpc.private_subnets
10 |   cluster_endpoint_public_access = true
11 | 
12 |   eks_managed_node_group_defaults = {
13 |     ami_type = "AL2_x86_64"
14 | 
15 |   }
16 | 
17 |   eks_managed_node_groups = {
18 |     one = {
19 |       name = "node-group-1"
20 | 
21 |       instance_types = ["t3.small"]
22 | 
23 |       min_size     = 1
24 |       max_size     = 3
25 |       desired_size = 2
26 |     }
27 | 
28 |     two = {
29 |       name = "node-group-2"
30 | 
31 |       instance_types = ["t3.small"]
32 | 
33 |       min_size     = 1
34 |       max_size     = 2
35 |       desired_size = 1
36 |     }
37 |   }
38 | }
39 | 


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/terraform/main.tf:
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 1 | provider "kubernetes" {
 2 |   host                   = module.eks.cluster_endpoint
 3 |   cluster_ca_certificate = base64decode(module.eks.cluster_certificate_authority_data)
 4 | }
 5 | 
 6 | provider "aws" {
 7 |   region = var.region
 8 | }
 9 | 
10 | data "aws_availability_zones" "available" {}
11 | 
12 | locals {
13 |   cluster_name = var.clusterName
14 | }
15 | 
16 | ##


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/terraform/outputs.tf:
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 1 | output "cluster_name" {
 2 |   description = "Amazon Web Service EKS Cluster Name"
 3 |   value       = module.eks.cluster_name
 4 | }
 5 | 
 6 | output "cluster_endpoint" {
 7 |   description = "Endpoint for Amazon Web Service EKS "
 8 |   value       = module.eks.cluster_endpoint
 9 | }
10 | 
11 | output "region" {
12 |   description = "Amazon Web Service EKS Cluster region"
13 |   value       = var.region
14 | }
15 | 
16 | 
17 | output "cluster_security_group_id" {
18 |   description = "Security group ID for the Amazon Web Service EKS Cluster "
19 |   value       = module.eks.cluster_security_group_id
20 | }
21 | 


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/terraform/terraform.tf:
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 1 | terraform {
 2 |   required_providers {
 3 |     aws = {
 4 |       source  = "hashicorp/aws"
 5 |       version = "~> 5.25.0"
 6 |     }
 7 | 
 8 |     random = {
 9 |       source  = "hashicorp/random"
10 |       version = "~> 3.5.1"
11 |     }
12 | 
13 |     tls = {
14 |       source  = "hashicorp/tls"
15 |       version = "~> 4.0.4"
16 |     }
17 | 
18 |     cloudinit = {
19 |       source  = "hashicorp/cloudinit"
20 |       version = "~> 2.3.2"
21 |     }
22 | 
23 |     kubernetes = {
24 |       source  = "hashicorp/kubernetes"
25 |       version = "~> 2.23.0"
26 |     }
27 |   }
28 | 
29 |   backend "s3" {
30 |     bucket = "gitopsterrastate"
31 |     key    = "terraform.tfstate"
32 |     region = "us-east-2"
33 |   }
34 | 
35 |   required_version = "~> 1.6.3"
36 | }
37 | ##
38 | ##
39 | ##
40 | 


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/terraform/variables.tf:
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 1 | variable "region" {
 2 |   description = "AWS region"
 3 |   type        = string
 4 |   default     = "us-east-2"
 5 | }
 6 | 
 7 | variable "clusterName" {
 8 |   description = "Name of the EKS cluster"
 9 |   type        = string
10 |   default     = "kitops-eks"
11 | }
12 | 


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/terraform/vpc.tf:
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 1 | module "vpc" {
 2 |   source  = "terraform-aws-modules/vpc/aws"
 3 |   version = "5.1.2"
 4 | 
 5 |   name = "vprofile-eks"
 6 | 
 7 |   cidr = "172.20.0.0/16"
 8 |   azs  = slice(data.aws_availability_zones.available.names, 0, 3)
 9 | 
10 |   private_subnets = ["172.20.1.0/24", "172.20.2.0/24", "172.20.3.0/24"]
11 |   public_subnets  = ["172.20.4.0/24", "172.20.5.0/24", "172.20.6.0/24"]
12 | 
13 |   enable_nat_gateway   = true
14 |   single_nat_gateway   = true
15 |   enable_dns_hostnames = true
16 | 
17 |   public_subnet_tags = {
18 |     "kubernetes.io/cluster/${local.cluster_name}" = "shared"
19 |     "kubernetes.io/role/elb"                      = 1
20 |   }
21 | 
22 |   private_subnet_tags = {
23 |     "kubernetes.io/cluster/${local.cluster_name}" = "shared"
24 |     "kubernetes.io/role/internal-elb"             = 1
25 |   }
26 | }
27 | 


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