mirror of
https://github.com/farcasclaudiu/terraform-course.git
synced 2026-06-22 05:01:55 +03:00
Edward Viaene
68 lines
2.2 KiB
Terraform
68 lines
2.2 KiB
Terraform
data "aws_ami" "eks-worker" {
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filter {
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name = "name"
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values = ["amazon-eks-node-${aws_eks_cluster.demo.version}-v*"]
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}
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most_recent = true
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owners = ["602401143452"] # Amazon
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}
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# EKS currently documents this required userdata for EKS worker nodes to
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# properly configure Kubernetes applications on the EC2 instance.
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# We utilize a Terraform local here to simplify Base64 encoding this
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# information into the AutoScaling Launch Configuration.
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# More information: https://docs.aws.amazon.com/eks/latest/userguide/launch-workers.html
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locals {
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demo-node-userdata = <<USERDATA
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#!/bin/bash
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set -o xtrace
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/etc/eks/bootstrap.sh --apiserver-endpoint '${aws_eks_cluster.demo.endpoint}' --b64-cluster-ca '${aws_eks_cluster.demo.certificate_authority[0].data}' '${var.cluster-name}'
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USERDATA
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}
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resource "aws_launch_configuration" "demo" {
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associate_public_ip_address = true
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iam_instance_profile = aws_iam_instance_profile.demo-node.name
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image_id = data.aws_ami.eks-worker.id
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instance_type = "t2.large"
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name_prefix = "terraform-eks-demo"
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security_groups = [aws_security_group.demo-node.id]
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user_data_base64 = base64encode(local.demo-node-userdata)
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lifecycle {
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create_before_destroy = true
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}
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}
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resource "aws_autoscaling_group" "demo" {
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desired_capacity = 2
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launch_configuration = aws_launch_configuration.demo.id
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max_size = 2
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min_size = 1
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name = "terraform-eks-demo"
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# TF-UPGRADE-TODO: In Terraform v0.10 and earlier, it was sometimes necessary to
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# force an interpolation expression to be interpreted as a list by wrapping it
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# in an extra set of list brackets. That form was supported for compatibilty in
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# v0.11, but is no longer supported in Terraform v0.12.
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#
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# If the expression in the following list itself returns a list, remove the
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# brackets to avoid interpretation as a list of lists. If the expression
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# returns a single list item then leave it as-is and remove this TODO comment.
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vpc_zone_identifier = module.vpc.public_subnets
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tag {
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key = "Name"
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value = "terraform-eks-demo"
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propagate_at_launch = true
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}
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tag {
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key = "kubernetes.io/cluster/${var.cluster-name}"
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value = "owned"
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propagate_at_launch = true
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}
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}
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