iam_worker.tf

# IAM role for EKS Worker Nodes
resource "aws_iam_role" "eks_worker_role" {
  name = var.worker_iam_role_name

  assume_role_policy = jsonencode({
    Version = "2012-10-17",
    Statement = [
      {
        Action = "sts:AssumeRole",
        Effect = "Allow",
        Principal = {
          Service = "ec2.amazonaws.com"
        },
      },
    ]
  })
}

# Attach required policies to the IAM role
resource "aws_iam_role_policy_attachment" "registry_ro" {
  role       = aws_iam_role.eks_worker_role.name
  policy_arn = "arn:aws:iam::aws:policy/AmazonEC2ContainerRegistryReadOnly"
}

resource "aws_iam_role_policy_attachment" "eks_worker_policy" {
  role       = aws_iam_role.eks_worker_role.name
  policy_arn = "arn:aws:iam::aws:policy/AmazonEKSWorkerNodePolicy"
}

resource "aws_iam_role_policy_attachment" "eks_cni_policy" {
  role       = aws_iam_role.eks_worker_role.name
  policy_arn = "arn:aws:iam::aws:policy/AmazonEKS_CNI_Policy"
}

resource "aws_iam_role_policy_attachment" "eks_worker_instance_core" {
  role       = aws_iam_role.eks_worker_role.name
  policy_arn = "arn:aws:iam::aws:policy/AmazonSSMManagedInstanceCore"
}