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Adding tf eks plan
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sutekar1597 committed Oct 7, 2023
1 parent 3eb88dc commit d156f17
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118 changes: 118 additions & 0 deletions acd_pune23/terraform-eks/main.tf
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# Copyright (c) HashiCorp, Inc.
# SPDX-License-Identifier: MPL-2.0

provider "aws" {
region = var.region
}

# Filter out local zones, which are not currently supported
# with managed node groups
data "aws_availability_zones" "available" {
filter {
name = "opt-in-status"
values = ["opt-in-not-required"]
}
}

locals {
cluster_name = "education-eks-${random_string.suffix.result}"
}

resource "random_string" "suffix" {
length = 8
special = false
}

module "vpc" {
source = "terraform-aws-modules/vpc/aws"
version = "5.0.0"

name = "education-vpc"

cidr = "10.0.0.0/16"
azs = slice(data.aws_availability_zones.available.names, 0, 3)

private_subnets = ["10.0.1.0/24", "10.0.2.0/24", "10.0.3.0/24"]
public_subnets = ["10.0.4.0/24", "10.0.5.0/24", "10.0.6.0/24"]

enable_nat_gateway = true
single_nat_gateway = true
enable_dns_hostnames = true

public_subnet_tags = {
"kubernetes.io/cluster/${local.cluster_name}" = "shared"
"kubernetes.io/role/elb" = 1
}

private_subnet_tags = {
"kubernetes.io/cluster/${local.cluster_name}" = "shared"
"kubernetes.io/role/internal-elb" = 1
}
}

module "eks" {
source = "terraform-aws-modules/eks/aws"
version = "19.15.3"

cluster_name = local.cluster_name
cluster_version = "1.27"

vpc_id = module.vpc.vpc_id
subnet_ids = module.vpc.private_subnets
cluster_endpoint_public_access = true

eks_managed_node_group_defaults = {
ami_type = "AL2_x86_64"

}

eks_managed_node_groups = {
one = {
name = "node-group-1"

instance_types = ["t3.small"]

min_size = 3
max_size = 4
desired_size = 3
}

two = {
name = "node-group-2"

instance_types = ["t3.small"]

min_size = 3
max_size = 4
desired_size = 3
}
}
}


# https://aws.amazon.com/blogs/containers/amazon-ebs-csi-driver-is-now-generally-available-in-amazon-eks-add-ons/
data "aws_iam_policy" "ebs_csi_policy" {
arn = "arn:aws:iam::aws:policy/service-role/AmazonEBSCSIDriverPolicy"
}

module "irsa-ebs-csi" {
source = "terraform-aws-modules/iam/aws//modules/iam-assumable-role-with-oidc"
version = "4.7.0"

create_role = true
role_name = "AmazonEKSTFEBSCSIRole-${module.eks.cluster_name}"
provider_url = module.eks.oidc_provider
role_policy_arns = [data.aws_iam_policy.ebs_csi_policy.arn]
oidc_fully_qualified_subjects = ["system:serviceaccount:kube-system:ebs-csi-controller-sa"]
}

resource "aws_eks_addon" "ebs-csi" {
cluster_name = module.eks.cluster_name
addon_name = "aws-ebs-csi-driver"
addon_version = "v1.20.0-eksbuild.1"
service_account_role_arn = module.irsa-ebs-csi.iam_role_arn
tags = {
"eks_addon" = "ebs-csi"
"terraform" = "true"
}
}
22 changes: 22 additions & 0 deletions acd_pune23/terraform-eks/outputs.tf
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# Copyright (c) HashiCorp, Inc.
# SPDX-License-Identifier: MPL-2.0

output "cluster_endpoint" {
description = "Endpoint for EKS control plane"
value = module.eks.cluster_endpoint
}

output "cluster_security_group_id" {
description = "Security group ids attached to the cluster control plane"
value = module.eks.cluster_security_group_id
}

output "region" {
description = "AWS region"
value = var.region
}

output "cluster_name" {
description = "Kubernetes Cluster Name"
value = module.eks.cluster_name
}
36 changes: 36 additions & 0 deletions acd_pune23/terraform-eks/terraform.tf
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# Copyright (c) HashiCorp, Inc.
# SPDX-License-Identifier: MPL-2.0

terraform {

required_providers {
aws = {
source = "hashicorp/aws"
version = "~> 5.7.0"
}

random = {
source = "hashicorp/random"
version = "~> 3.5.1"
}

tls = {
source = "hashicorp/tls"
version = "~> 4.0.4"
}

cloudinit = {
source = "hashicorp/cloudinit"
version = "~> 2.3.2"
}
}

backend "s3" {
bucket = "tfstateacdpune"
key = "tfstate"
region = "us-west-2"

}

required_version = "~> 1.3"
}
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8 changes: 8 additions & 0 deletions acd_pune23/terraform-eks/variables.tf
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# Copyright (c) HashiCorp, Inc.
# SPDX-License-Identifier: MPL-2.0

variable "region" {
description = "AWS region"
type = string
default = "us-west-2"
}

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