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Add support for spot instances (#55)
* Add support for spot instances * Add test for spot instances
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,77 @@ | ||
| data "cloudinit_config" "webserver_init" { | ||
| gzip = false | ||
| base64_encode = true | ||
|
|
||
| part { | ||
| content_type = "text/cloud-config" | ||
| content = join( | ||
| "\n", | ||
| [ | ||
| "#cloud-config", | ||
| yamlencode( | ||
| { | ||
| "package_update" : true, | ||
| packages : [ | ||
| "xinetd", | ||
| "net-tools" | ||
| ] | ||
| write_files : [ | ||
| { | ||
| path : "/etc/xinetd.d/http" | ||
| permissions : "0600" | ||
| content : file("${path.module}/xinetd.d.http") | ||
| }, | ||
| { | ||
| path : "/usr/local/bin/httpd" | ||
| permissions : "0755" | ||
| content : file("${path.module}/httpd.sh") | ||
| } | ||
| ] | ||
| runcmd : [ | ||
| "systemctl start xinetd" | ||
| ] | ||
| } | ||
| ) | ||
| ] | ||
| ) | ||
| } | ||
| } | ||
|
|
||
| data "aws_ami" "ubuntu" { | ||
| most_recent = true | ||
|
|
||
| filter { | ||
| name = "name" | ||
| values = ["ubuntu/images/hvm-ssd/ubuntu-${var.ubuntu_codename}-*"] | ||
| } | ||
|
|
||
| filter { | ||
| name = "architecture" | ||
| values = ["x86_64"] | ||
| } | ||
|
|
||
| filter { | ||
| name = "virtualization-type" | ||
| values = ["hvm"] | ||
| } | ||
|
|
||
| filter { | ||
| name = "state" | ||
| values = [ | ||
| "available" | ||
| ] | ||
| } | ||
|
|
||
| owners = ["099720109477"] # Canonical | ||
| } | ||
|
|
||
| data "aws_iam_policy_document" "webserver_permissions" { | ||
| statement { | ||
| actions = ["ec2:Describe*"] | ||
| resources = ["*"] | ||
| } | ||
| } | ||
|
|
||
| data "aws_route53_zone" "website" { | ||
| name = var.dns_zone | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| #!/usr/bin/env bash | ||
|
|
||
| http_response () { | ||
| HTTP_CODE=$1 | ||
| MESSAGE=${2:-Message Undefined} | ||
| length=$((${#MESSAGE} + 2)) | ||
| if [[ "$HTTP_CODE" -eq 503 ]]; then | ||
| echo -en "HTTP/1.1 503 Service Unavailable\r\n" | ||
| elif [[ "$HTTP_CODE" -eq 200 ]]; then | ||
| echo -en "HTTP/1.1 200 OK\r\n" | ||
| else | ||
| echo -en "HTTP/1.1 ${HTTP_CODE} UNKNOWN\r\n" | ||
| fi | ||
| echo -en "Content-Type: text/plain\r\n" | ||
| echo -en "Connection: close\r\n" | ||
| echo -en "Content-Length: ${length}\r\n" | ||
| echo -en "\r\n" | ||
| echo -en "$MESSAGE" | ||
| echo -en "\r\n" | ||
| sleep 0.1 | ||
| exit 0 | ||
| } | ||
|
|
||
| http_response 200 "Success Message" |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| resource "aws_key_pair" "test" { | ||
| public_key = "ssh-rsa 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 aleks@MediaPC" | ||
| } | ||
|
|
||
| module "lb" { | ||
| source = "../../" | ||
| providers = { | ||
| aws = aws | ||
| aws.dns = aws | ||
| } | ||
| service_name = "website" | ||
| subnets = var.lb_subnet_ids | ||
| ami = data.aws_ami.ubuntu.id | ||
| backend_subnets = var.backend_subnet_ids | ||
| asg_name = var.asg_name | ||
| asg_min_size = 2 | ||
| on_demand_base_capacity = 1 | ||
| internet_gateway_id = var.internet_gateway_id | ||
| zone_id = data.aws_route53_zone.website.zone_id | ||
| dns_a_records = var.dns_a_records | ||
| key_pair_name = aws_key_pair.test.key_name | ||
| userdata = data.cloudinit_config.webserver_init.rendered | ||
| health_check_type = "ELB" | ||
| instance_profile_permissions = data.aws_iam_policy_document.webserver_permissions.json | ||
| instance_role_name = var.instance_role_name | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,23 @@ | ||
| output "network_subnet_public_ids" { | ||
| value = var.lb_subnet_ids | ||
| } | ||
|
|
||
| output "network_subnet_private_ids" { | ||
| value = var.backend_subnet_ids | ||
| } | ||
|
|
||
| output "network_subnet_all_ids" { | ||
| value = concat(var.backend_subnet_ids, var.lb_subnet_ids) | ||
| } | ||
|
|
||
| output "asg_name" { | ||
| value = module.lb.asg_name | ||
| } | ||
|
|
||
| output "instance_profile_name" { | ||
| value = module.lb.instance_profile_name | ||
| } | ||
|
|
||
| output "load_balancer_dns_name" { | ||
| value = module.lb.load_balancer_dns_name | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,12 @@ | ||
| provider "aws" { | ||
| assume_role { | ||
| role_arn = var.role_arn | ||
| } | ||
| region = var.region | ||
| default_tags { | ||
| tags = { | ||
| "created_by" : "infrahouse/terraform-aws-website-pod" # GitHub repository that created a resource | ||
| } | ||
|
|
||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,12 @@ | ||
| terraform { | ||
| required_providers { | ||
| aws = { | ||
| source = "hashicorp/aws" | ||
| version = "~> 5.11" | ||
| } | ||
| cloudinit = { | ||
| source = "hashicorp/cloudinit" | ||
| version = "~> 2.3" | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,13 @@ | ||
| variable "region" {} | ||
| variable "role_arn" {} | ||
| variable "dns_a_records" { | ||
| default = ["", "www", "bogus-test-stuff"] | ||
| } | ||
| variable "dns_zone" {} | ||
| variable "ubuntu_codename" {} | ||
| variable "asg_name" { default = null } | ||
|
|
||
| variable "backend_subnet_ids" {} | ||
| variable "lb_subnet_ids" {} | ||
| variable "internet_gateway_id" {} | ||
| variable "instance_role_name" { default = null } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,17 @@ | ||
| # default: on | ||
| # description: xinetdhttpservice | ||
| service xinetdhttpservice | ||
| { | ||
| # Inspired by: https://github.com/rglaue/xinetd_bash_http_service/blob/master/xinetdhttpservice_config | ||
| disable = no | ||
| flags = REUSE | ||
| socket_type = stream | ||
| type = UNLISTED | ||
| port = 80 | ||
| wait = no | ||
| user = nobody | ||
| server = /usr/local/bin/httpd | ||
| log_on_failure += USERID | ||
| only_from = 0.0.0.0/0 | ||
| per_source = UNLIMITED | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| import json | ||
| from os import path as osp | ||
| from pprint import pformat | ||
| from textwrap import dedent | ||
|
|
||
| import pytest | ||
| from infrahouse_toolkit.terraform import terraform_apply | ||
|
|
||
| from tests.conftest import ( | ||
| TEST_ZONE, | ||
| REGION, | ||
| UBUNTU_CODENAME, | ||
| TRACE_TERRAFORM, | ||
| TEST_ROLE_ARN, | ||
| TEST_TIMEOUT, | ||
| wait_for_instance_refresh, | ||
| LOG, | ||
| ) | ||
|
|
||
|
|
||
| @pytest.mark.timeout(TEST_TIMEOUT) | ||
| def test_lb( | ||
| service_network, | ||
| ec2_client, | ||
| route53_client, | ||
| elbv2_client, | ||
| autoscaling_client, | ||
| keep_after, | ||
| ): | ||
| subnet_public_ids = service_network["subnet_public_ids"]["value"] | ||
| subnet_private_ids = service_network["subnet_private_ids"]["value"] | ||
| internet_gateway_id = service_network["internet_gateway_id"]["value"] | ||
|
|
||
| terraform_dir = "test_data/test_spot" | ||
|
|
||
| with open(osp.join(terraform_dir, "terraform.tfvars"), "w") as fp: | ||
| fp.write( | ||
| dedent( | ||
| f""" | ||
| region = "{REGION}" | ||
| role_arn = "{TEST_ROLE_ARN}" | ||
| dns_zone = "{TEST_ZONE}" | ||
| ubuntu_codename = "{UBUNTU_CODENAME}" | ||
| lb_subnet_ids = {json.dumps(subnet_public_ids)} | ||
| backend_subnet_ids = {json.dumps(subnet_private_ids)} | ||
| internet_gateway_id = "{internet_gateway_id}" | ||
| """ | ||
| ) | ||
| ) | ||
|
|
||
| with terraform_apply( | ||
| terraform_dir, | ||
| destroy_after=not keep_after, | ||
| json_output=True, | ||
| enable_trace=TRACE_TERRAFORM, | ||
| ) as tf_output: | ||
| asg_name = tf_output["asg_name"]["value"] | ||
| wait_for_instance_refresh(asg_name, autoscaling_client) | ||
| response = autoscaling_client.describe_auto_scaling_groups( | ||
| AutoScalingGroupNames=[ | ||
| asg_name, | ||
| ], | ||
| ) | ||
| LOG.debug( | ||
| "describe_auto_scaling_groups(%s): %s", | ||
| asg_name, | ||
| pformat(response, indent=4), | ||
| ) | ||
|
|
||
| healthy_instance = None | ||
| for instance in response["AutoScalingGroups"][0]["Instances"]: | ||
| LOG.debug("Evaluating instance %s", pformat(instance, indent=4)) | ||
| if instance["LifecycleState"] == "InService": | ||
| healthy_instance = instance | ||
| break | ||
| assert healthy_instance, f"Could not find a healthy instance in ASG {asg_name}" | ||
| healthy_instance_count = len( | ||
| [ | ||
| i | ||
| for i in response["AutoScalingGroups"][0]["Instances"] | ||
| if i["LifecycleState"] == "InService" | ||
| ] | ||
| ) | ||
| assert healthy_instance_count == 2 |
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