kubespray/contrib/terraform/aws/create-infrastructure.tf

172 lines
5.9 KiB
HCL

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