first commit

cluster.tf

@@ -0,0 +1,87 @@
+#
+# EKS Cluster Resources
+#  * IAM Role to allow EKS service to manage other AWS services
+#  * EC2 Security Group to allow networking traffic with EKS cluster
+#  * EKS Cluster
+#
+
+resource "aws_eks_cluster" "demo" {
+  name     = "${var.cluster_name}"
+  role_arn = "${aws_iam_role.demo-cluster.arn}"
+
+  vpc_config {
+    security_group_ids = ["${aws_security_group.demo-cluster.id}"]
+    subnet_ids         = ["${var.subnets}"]
+  }
+
+  depends_on = [
+    "aws_iam_role_policy_attachment.demo-cluster-AmazonEKSClusterPolicy",
+    "aws_iam_role_policy_attachment.demo-cluster-AmazonEKSServicePolicy",
+  ]
+}
+
+resource "aws_iam_role" "demo-cluster" {
+  name = "terraform-eks-demo-cluster"
+
+  assume_role_policy = <<POLICY
+{
+  "Version": "2012-10-17",
+  "Statement": [
+    {
+      "Effect": "Allow",
+      "Principal": {
+        "Service": "eks.amazonaws.com"
+      },
+      "Action": "sts:AssumeRole"
+    }
+  ]
+}
+POLICY
+}
+
+resource "aws_iam_role_policy_attachment" "demo-cluster-AmazonEKSClusterPolicy" {
+  policy_arn = "arn:aws:iam::aws:policy/AmazonEKSClusterPolicy"
+  role       = "${aws_iam_role.demo-cluster.name}"
+}
+
+resource "aws_iam_role_policy_attachment" "demo-cluster-AmazonEKSServicePolicy" {
+  policy_arn = "arn:aws:iam::aws:policy/AmazonEKSServicePolicy"
+  role       = "${aws_iam_role.demo-cluster.name}"
+}
+
+resource "aws_security_group" "demo-cluster" {
+  name        = "terraform-eks-demo-cluster"
+  description = "Cluster communication with worker nodes"
+  vpc_id      = "${var.vpc_id}"
+
+  egress {
+    from_port   = 0
+    to_port     = 0
+    protocol    = "-1"
+    cidr_blocks = ["0.0.0.0/0"]
+  }
+
+  tags {
+    Name = "terraform-eks-demo"
+  }
+}
+
+resource "aws_security_group_rule" "demo-cluster-ingress-node-https" {
+  description              = "Allow pods to communicate with the cluster API Server"
+  from_port                = 443
+  protocol                 = "tcp"
+  security_group_id        = "${aws_security_group.demo-cluster.id}"
+  source_security_group_id = "${aws_security_group.demo-node.id}"
+  to_port                  = 443
+  type                     = "ingress"
+}
+
+resource "aws_security_group_rule" "demo-cluster-ingress-workstation-https" {
+  cidr_blocks       = ["${local.workstation_external_cidr}"]
+  description       = "Allow workstation to communicate with the cluster API Server"
+  from_port         = 443
+  protocol          = "tcp"
+  security_group_id = "${aws_security_group.demo-cluster.id}"
+  to_port           = 443
+  type              = "ingress"
+}