1 files changed, 52 insertions, 0 deletions
diff --git a/terraform/asg.tf b/terraform/asg.tf
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+++ b/terraform/asg.tf
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+# This data source is included for ease of sample architecture deployment
+# and can be swapped out as necessary.
+data "aws_region" "current" {}
+
+# EKS currently documents this required userdata for EKS worker nodes to
+# properly configure Kubernetes applications on the EC2 instance.
+# We utilize a Terraform local here to simplify Base64 encoding this
+# information into the AutoScaling Launch Configuration.
+# More information: https://docs.aws.amazon.com/eks/latest/userguide/launch-workers.html
+locals {
+  demo-node-userdata = <<USERDATA
+#!/bin/bash
+set -o xtrace
+/etc/eks/bootstrap.sh --apiserver-endpoint '${aws_eks_cluster.sensyne_demo_cluster.endpoint}' --b64-cluster-ca '${aws_eks_cluster.sensyne_demo_cluster.certificate_authority.0.data}' '${var.cluster_name}'
+USERDATA
+}
+
+resource "aws_launch_configuration" "sensyne_demo_alc" {
+  associate_public_ip_address = true
+  iam_instance_profile        = "${aws_iam_instance_profile.sensyne_demo_node.name}"
+  image_id                    = "${data.aws_ami.eks-worker.id}"
+  instance_type               = "m4.large"
+  name_prefix                 = "sensyne_demo_alc"
+  security_groups             = ["${aws_security_group.sensyne_demo_node.id}"]
+  user_data_base64            = "${base64encode(local.demo-node-userdata)}"
+
+  lifecycle {
+    create_before_destroy = true
+  }
+}
+
+resource "aws_autoscaling_group" "sensyne_demo_asg" {
+  desired_capacity     = 2
+  launch_configuration = "${aws_launch_configuration.sensyne_demo_alc.id}"
+  max_size             = 2
+  min_size             = 1
+  name                 = "sensyne_demo_asg"
+  vpc_zone_identifier  = ["${aws_subnet.sensyne_demo_subnet.*.id}"]
+
+  tag {
+    key                 = "Name"
+    value               = "sensyne_demo_asg_worker"
+    propagate_at_launch = true
+  }
+
+  tag {
+    key                 = "kubernetes.io/cluster/${var.cluster_name}"
+    value               = "owned"
+    propagate_at_launch = true
+  }
+}
+