144 lines
4 KiB
HCL
144 lines
4 KiB
HCL
# Copyright (c) HashiCorp, Inc.
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# SPDX-License-Identifier: MPL-2.0
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data "aws_ami" "consul" {
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most_recent = true
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owners = var.ami_owners
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filter {
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name = "virtualization-type"
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values = ["hvm"]
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}
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filter {
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name = "is-public"
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values = ["false"]
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}
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filter {
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name = "name"
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values = ["consul-ubuntu-*"]
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}
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}
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# ---------------------------------------------------------------------------------------------------------------------
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# Deploy consul cluster
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# ---------------------------------------------------------------------------------------------------------------------
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module "consul_servers" {
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source = "git::git@github.com:hashicorp/terraform-aws-consul.git//modules/consul-cluster?ref=v0.8.0"
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cluster_name = "${var.cluster_name}-server"
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cluster_size = var.num_servers
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instance_type = var.instance_type
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cluster_tag_key = var.cluster_tag_key
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cluster_tag_value = var.cluster_name
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ami_id = var.consul_ami_id == null ? data.aws_ami.consul.id : var.consul_ami_id
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user_data = data.template_file.user_data_server.rendered
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vpc_id = module.vpc.vpc_id
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subnet_ids = module.vpc.public_subnets
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allowed_ssh_cidr_blocks = [var.vpc_cidr]
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allowed_inbound_cidr_blocks = [var.vpc_cidr]
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ssh_key_name = module.keys.key_name
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}
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module "consul_clients" {
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source = "git::git@github.com:hashicorp/terraform-aws-consul.git//modules/consul-cluster?ref=v0.8.0"
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cluster_name = "${var.cluster_name}-client"
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cluster_size = var.num_clients
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instance_type = var.instance_type
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cluster_tag_key = var.cluster_tag_key
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cluster_tag_value = var.cluster_name
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ami_id = var.consul_ami_id == null ? data.aws_ami.consul.id : var.consul_ami_id
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user_data = data.template_file.user_data_client.rendered
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vpc_id = module.vpc.vpc_id
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subnet_ids = module.vpc.public_subnets
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allowed_ssh_cidr_blocks = [var.vpc_cidr]
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allowed_inbound_cidr_blocks = [var.vpc_cidr]
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ssh_key_name = module.keys.key_name
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}
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# ---------------------------------------------------------------------------------------------------------------------
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# This script will configure and start Consul agents
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# ---------------------------------------------------------------------------------------------------------------------
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data "template_file" "user_data_server" {
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template = file("${path.module}/user-data-server.sh")
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vars = {
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consul_version = var.consul_version
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consul_download_url = var.consul_download_url
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cluster_tag_key = var.cluster_tag_key
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cluster_tag_value = var.cluster_name
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}
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}
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data "template_file" "user_data_client" {
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template = file("${path.module}/user-data-client.sh")
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vars = {
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consul_version = var.consul_version
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consul_download_url = var.consul_download_url
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cluster_tag_key = var.cluster_tag_key
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cluster_tag_value = var.cluster_name
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}
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}
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#
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# Set up ALB for test-servers to talk to consul clients
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#
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module "alb" {
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source = "terraform-aws-modules/alb/aws"
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version = "~> 5.0"
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name = "${var.cluster_name}-alb"
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load_balancer_type = "application"
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vpc_id = module.vpc.vpc_id
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subnets = module.vpc.public_subnets
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security_groups = [module.consul_clients.security_group_id]
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internal = true
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target_groups = [
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{
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#name_prefix has a six char limit
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name_prefix = "test-"
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backend_protocol = "HTTP"
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backend_port = 8500
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target_type = "instance"
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health_check = {
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interval = 5
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timeout = 3
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protocol = "HTTP"
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healthy_threshold = 2
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path = "/v1/status/leader"
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}
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}
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]
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http_tcp_listeners = [
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{
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port = 8500
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protocol = "HTTP"
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target_group_index = 0
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}
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]
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}
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# Attach ALB to Consul clients
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resource "aws_autoscaling_attachment" "asg_attachment_bar" {
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autoscaling_group_name = module.consul_clients.asg_name
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alb_target_group_arn = module.alb.target_group_arns[0]
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}
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