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0210_ekscluster.tf
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0210_ekscluster.tf
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# 1. EKS Cluster 생성
# 1-1. role 연동
# 1-2. public access는 제한
# 1-3. subnet은 sbn_pri 사용
# 1-4. security group은 sg_cluster 사용
# 2. eks role 생성 후 eks cluster/service policy 연동
# 1-1. EKS 클러스터에 접근하기 위한 Role 생성
resource "aws_iam_role" "role_eks" {
name = "iam-${var.env}-${var.pjt}-role-eks"
assume_role_policy = <<POLICY
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Principal": {
"Service": "eks.amazonaws.com"
},
"Action": "sts:AssumeRole"
}
]
}
POLICY
tags = {
Name = "iam-${var.env}-${var.pjt}-role-eks",
Service = "role-eks"
}
}
# 1-2. EKS 클러스터를 위한 Role과 정책 연결
resource "aws_iam_role_policy_attachment" "att_AmazonEKSClusterPolicy" {
policy_arn = "arn:aws:iam::aws:policy/AmazonEKSClusterPolicy"
role = aws_iam_role.role_eks.name
}
resource "aws_iam_role_policy_attachment" "att_AmazonEKSServicePolicy" {
policy_arn = "arn:aws:iam::aws:policy/AmazonEKSServicePolicy"
role = aws_iam_role.role_eks.name
}
################
# EKS Cluster 생성
resource "aws_eks_cluster" "eks_cluster" {
name = "eks-${var.env}-${var.pjt}-cluster"
role_arn = aws_iam_role.role_eks.arn
vpc_config { # eks에 private access 로 제한함
endpoint_private_access = true
endpoint_public_access = true
security_group_ids = [aws_security_group.sg_cluster.id]
subnet_ids = [aws_subnet.sbn_pria.id, aws_subnet.sbn_pric.id]
}
depends_on = [
aws_iam_role_policy_attachment.att_AmazonEKSClusterPolicy,
aws_iam_role_policy_attachment.att_AmazonEKSServicePolicy
]
tags = {
Name = "eks-${var.env}-${var.pjt}-cluster",
Service = "cluster"
}
}
##################
data "aws_caller_identity" "current" {}
# OIDC Provider용 CA-thumbprint data 생성
data "tls_certificate" "cluster-tls" {
url = aws_eks_cluster.eks_cluster.identity[0].oidc[0].issuer
}
# OIDC Provider 생성
resource "aws_iam_openid_connect_provider" "eks_oidc_provider" {
url = aws_eks_cluster.eks_cluster.identity[0].oidc[0].issuer
client_id_list = [
"sts.amazonaws.com",
]
thumbprint_list = ["${data.tls_certificate.cluster-tls.certificates.0.sha1_fingerprint}"]
}
output "EKS_CLUSTER_NAME" {
value = "eks-${var.env}-${var.pjt}-cluster"
}
output "oidc" {
value = trimprefix("${aws_eks_cluster.eks_cluster.identity[0].oidc[0].issuer}", "https://")
}
output "thumb" {
value = data.tls_certificate.cluster-tls.certificates.0.sha1_fingerprint
}