172 lines
5.9 KiB
HCL
172 lines
5.9 KiB
HCL
terraform {
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required_version = ">= 0.12.0"
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}
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provider "aws" {
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access_key = "${var.AWS_ACCESS_KEY_ID}"
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secret_key = "${var.AWS_SECRET_ACCESS_KEY}"
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region = "${var.AWS_DEFAULT_REGION}"
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}
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data "aws_availability_zones" "available" {}
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/*
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* Calling modules who create the initial AWS VPC / AWS ELB
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* and AWS IAM Roles for Kubernetes Deployment
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*/
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module "aws-vpc" {
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source = "./modules/vpc"
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aws_cluster_name = "${var.aws_cluster_name}"
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aws_vpc_cidr_block = "${var.aws_vpc_cidr_block}"
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aws_avail_zones = "${slice(data.aws_availability_zones.available.names, 0, 2)}"
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aws_cidr_subnets_private = "${var.aws_cidr_subnets_private}"
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aws_cidr_subnets_public = "${var.aws_cidr_subnets_public}"
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default_tags = "${var.default_tags}"
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}
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module "aws-elb" {
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source = "./modules/elb"
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aws_cluster_name = "${var.aws_cluster_name}"
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aws_vpc_id = "${module.aws-vpc.aws_vpc_id}"
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aws_avail_zones = "${slice(data.aws_availability_zones.available.names, 0, 2)}"
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aws_subnet_ids_public = "${module.aws-vpc.aws_subnet_ids_public}"
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aws_elb_api_port = "${var.aws_elb_api_port}"
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k8s_secure_api_port = "${var.k8s_secure_api_port}"
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default_tags = "${var.default_tags}"
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}
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module "aws-iam" {
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source = "./modules/iam"
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aws_cluster_name = "${var.aws_cluster_name}"
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}
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/*
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* Create Bastion Instances in AWS
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*
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*/
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resource "aws_instance" "bastion-server" {
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ami = "${data.aws_ami.distro.id}"
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instance_type = "${var.aws_bastion_size}"
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count = "${length(var.aws_cidr_subnets_public)}"
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associate_public_ip_address = true
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availability_zone = "${element(slice(data.aws_availability_zones.available.names, 0, 2), count.index)}"
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subnet_id = "${element(module.aws-vpc.aws_subnet_ids_public, count.index)}"
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vpc_security_group_ids = "${module.aws-vpc.aws_security_group}"
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key_name = "${var.AWS_SSH_KEY_NAME}"
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tags = "${merge(var.default_tags, map(
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"Name", "kubernetes-${var.aws_cluster_name}-bastion-${count.index}",
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"Cluster", "${var.aws_cluster_name}",
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"Role", "bastion-${var.aws_cluster_name}-${count.index}"
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))}"
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}
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/*
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* Create K8s Master and worker nodes and etcd instances
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*
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*/
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resource "aws_instance" "k8s-master" {
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ami = "${data.aws_ami.distro.id}"
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instance_type = "${var.aws_kube_master_size}"
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count = "${var.aws_kube_master_num}"
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availability_zone = "${element(slice(data.aws_availability_zones.available.names, 0, 2), count.index)}"
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subnet_id = "${element(module.aws-vpc.aws_subnet_ids_private, count.index)}"
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vpc_security_group_ids = "${module.aws-vpc.aws_security_group}"
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iam_instance_profile = "${module.aws-iam.kube-master-profile}"
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key_name = "${var.AWS_SSH_KEY_NAME}"
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tags = "${merge(var.default_tags, map(
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"Name", "kubernetes-${var.aws_cluster_name}-master${count.index}",
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"kubernetes.io/cluster/${var.aws_cluster_name}", "member",
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"Role", "master"
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))}"
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}
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resource "aws_elb_attachment" "attach_master_nodes" {
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count = "${var.aws_kube_master_num}"
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elb = "${module.aws-elb.aws_elb_api_id}"
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instance = "${element(aws_instance.k8s-master.*.id, count.index)}"
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}
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resource "aws_instance" "k8s-etcd" {
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ami = "${data.aws_ami.distro.id}"
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instance_type = "${var.aws_etcd_size}"
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count = "${var.aws_etcd_num}"
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availability_zone = "${element(slice(data.aws_availability_zones.available.names, 0, 2), count.index)}"
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subnet_id = "${element(module.aws-vpc.aws_subnet_ids_private, count.index)}"
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vpc_security_group_ids = "${module.aws-vpc.aws_security_group}"
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key_name = "${var.AWS_SSH_KEY_NAME}"
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tags = "${merge(var.default_tags, map(
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"Name", "kubernetes-${var.aws_cluster_name}-etcd${count.index}",
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"kubernetes.io/cluster/${var.aws_cluster_name}", "member",
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"Role", "etcd"
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))}"
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}
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resource "aws_instance" "k8s-worker" {
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ami = "${data.aws_ami.distro.id}"
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instance_type = "${var.aws_kube_worker_size}"
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count = "${var.aws_kube_worker_num}"
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availability_zone = "${element(slice(data.aws_availability_zones.available.names, 0, 2), count.index)}"
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subnet_id = "${element(module.aws-vpc.aws_subnet_ids_private, count.index)}"
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vpc_security_group_ids = "${module.aws-vpc.aws_security_group}"
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iam_instance_profile = "${module.aws-iam.kube-worker-profile}"
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key_name = "${var.AWS_SSH_KEY_NAME}"
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tags = "${merge(var.default_tags, map(
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"Name", "kubernetes-${var.aws_cluster_name}-worker${count.index}",
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"kubernetes.io/cluster/${var.aws_cluster_name}", "member",
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"Role", "worker"
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))}"
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}
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/*
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* Create Kubespray Inventory File
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*
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*/
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data "template_file" "inventory" {
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template = "${file("${path.module}/templates/inventory.tpl")}"
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vars = {
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public_ip_address_bastion = "${join("\n", formatlist("bastion ansible_host=%s", aws_instance.bastion-server.*.public_ip))}"
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connection_strings_master = "${join("\n", formatlist("%s ansible_host=%s", aws_instance.k8s-master.*.private_dns, aws_instance.k8s-master.*.private_ip))}"
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connection_strings_node = "${join("\n", formatlist("%s ansible_host=%s", aws_instance.k8s-worker.*.private_dns, aws_instance.k8s-worker.*.private_ip))}"
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connection_strings_etcd = "${join("\n", formatlist("%s ansible_host=%s", aws_instance.k8s-etcd.*.private_dns, aws_instance.k8s-etcd.*.private_ip))}"
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list_master = "${join("\n", aws_instance.k8s-master.*.private_dns)}"
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list_node = "${join("\n", aws_instance.k8s-worker.*.private_dns)}"
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list_etcd = "${join("\n", aws_instance.k8s-etcd.*.private_dns)}"
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elb_api_fqdn = "apiserver_loadbalancer_domain_name=\"${module.aws-elb.aws_elb_api_fqdn}\""
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}
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}
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resource "null_resource" "inventories" {
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provisioner "local-exec" {
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command = "echo '${data.template_file.inventory.rendered}' > ${var.inventory_file}"
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}
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triggers = {
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template = "${data.template_file.inventory.rendered}"
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}
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}
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