terraform-aws-ecs-atlantis

A Terraform module for deploying Atlantis to an AWS ECS cluster.

This project is part of our comprehensive "SweetOps" approach towards DevOps.

It's 100% Open Source and licensed under the APACHE2.

We literally have hundreds of terraform modules that are Open Source and well-maintained. Check them out!

Screenshots

Example of a Pull Request comment from running terraform plan using atlantis

Introduction

Atlantis enables GitOps workflows so that teams can collaborate on operations using Pull Requests.

Under the hood, it's a small self-hosted daemon (#golang) that listens for Pull Request webhook events from GitHub.

With Atlantis, engineers can run terraform plan and terraform apply using "chat ops" type comments on the Pull Request.

Features

This module provisions the following resources:

ECS Atlantis web application, which includes:
- ECR Docker registry
- ALB target group, listener rule and alarms
- ECS container definition (using a default backend)
- ECS task definition and IAM role
- ECS service and IAM role
- ECS task autoscaling
- ECS SNS based alarms
- ECS Codepipeline to build our Atlantis image on GitHub release
- ECS Codedeploy to deploy our ECS Atlantis web app
SSH key pair for Atlantis to pull private Github repositories, which are written to SSM for reading with chamber
Route53 alias for Atlantis
GitHub webhook to trigger Atlantis for a given repository

What this module does not provision:

ECS Cluster (BYOC)
ALB
ACM certificate
VPC
Subnets

Caveats

This project assumes that the repo being deployed defines a Dockerfile which runs atlantis. It might not work with the official version of atlantis. We use geodesic as our docker base image.
This project defines parameters which are not available in the official version of atlantis. Our fork implements the ability to restrict plan and apply to GitHub teams.

GitHub Repo Scopes

This module accepts two GitHub OAuth tokens:

github_oauth_token with permissions to pull private repos. Used by CodePipeline to clone repos before the build, and by the atlantis server to clone repos and comment on Pull Requests.

The token needs the following OAuth scopes:
- repo
  - repo:status
  - repo_deployment
  - public_repo
  - repo:invite
github_webhooks_token with permissions to create GitHub webhooks. Only used by Terraform GitHub Provider when provisioning the module.

The token needs the following OAuth scopes:
- admin:repo_hook
  - write:repo_hook
  - read:repo_hook

We suggest the following steps when creating the tokens and provisioning the module:

Create a GitHub bot user
Create the two Personal Access Tokens and add them to the bot
In github.com/<org>/<repo>/settings/collaboration, create a Team for the bot and add the bot user to it
Give Admin permissions to the Team (select it from the dropdown). We need it temporalily to provision GitHub webhooks on the repo
Provision the module with Terraform. Terraform GitHub Provider will use the github_webhooks_token to create webhooks on the repo
Go to github.com/<org>/<repo>/settings/hooks and make sure that two webhooks have been created: one for the CodePipeline with Releases events, the other is for the atlantis server with Issue comments, Pull request reviews, Pull requests, Pull request review comments and Pushes events
IMPORTANT: Remove the Admin permissions and add Read permissions for the bot Team. The CodePipeline and atlantis server will use the github_oauth_token to clone repos, which does not require escalated privileges

IMPORTANT: Do not commit the tokens to source control (e.g. via terraform.tvfars).

NOTE: If the two tokens are not provided (left empty), they will be looked up from SSM Parameter Store. You can write atlantis atlantis_gh and github_webhooks_token to SSM Parameter Store before provisioning the module. For example, by using chamber:

  chamber write atlantis atlantis_gh_token "....."
  chamber write atlantis github_webhooks_token "....."

Security & Compliance

Security scanning is graciously provided by Bridgecrew. Bridgecrew is the leading fully hosted, cloud-native solution providing continuous Terraform security and compliance.

Benchmark	Description
	Infrastructure Security Compliance
	Center for Internet Security, KUBERNETES Compliance
	Center for Internet Security, AWS Compliance
	Center for Internet Security, AZURE Compliance
	Payment Card Industry Data Security Standards Compliance
	National Institute of Standards and Technology Compliance
	Information Security Management System, ISO/IEC 27001 Compliance
	Service Organization Control 2 Compliance
	Center for Internet Security, GCP Compliance
	Health Insurance Portability and Accountability Compliance

Usage

IMPORTANT: We do not pin modules to versions in our examples because of the difficulty of keeping the versions in the documentation in sync with the latest released versions. We highly recommend that in your code you pin the version to the exact version you are using so that your infrastructure remains stable, and update versions in a systematic way so that they do not catch you by surprise.

Also, because of a bug in the Terraform registry (hashicorp/terraform#21417), the registry shows many of our inputs as required when in fact they are optional. The table below correctly indicates which inputs are required.

For a complete example, see examples/complete.

For automated tests of the complete example using bats and Terratest (which tests and deploys the example on AWS), see test.

Other examples:

without authentication - example without authentication
with Google OIDC authentication - example with Google OIDC authentication
with Cognito authentication - example with Cognito authentication

NOTE:

If no github_oauth_token is set, the module attempts to look one up from SSM.

If no github_webhooks_token is set, Terraform GitHub Provider attempts to look one up in the GITHUB_TOKEN environment variable.

  provider "aws" {
    region = var.region
  }

  module "label" {
    source     = "git::https://github.com/cloudposse/terraform-null-label.git?ref=tags/0.16.0"
    namespace  = var.namespace
    name       = var.name
    stage      = var.stage
    delimiter  = var.delimiter
    attributes = var.attributes
    tags       = var.tags
  }

  module "vpc" {
    source     = "git::https://github.com/cloudposse/terraform-aws-vpc.git?ref=tags/0.8.1"
    namespace  = var.namespace
    stage      = var.stage
    name       = var.name
    delimiter  = var.delimiter
    attributes = var.attributes
    cidr_block = var.vpc_cidr_block
    tags       = var.tags
  }

  module "subnets" {
    source               = "git::https://github.com/cloudposse/terraform-aws-dynamic-subnets.git?ref=tags/0.16.1"
    availability_zones   = var.availability_zones
    namespace            = var.namespace
    stage                = var.stage
    name                 = var.name
    attributes           = var.attributes
    delimiter            = var.delimiter
    vpc_id               = module.vpc.vpc_id
    igw_id               = module.vpc.igw_id
    cidr_block           = module.vpc.vpc_cidr_block
    nat_gateway_enabled  = true
    nat_instance_enabled = false
    tags                 = var.tags
  }

  module "alb" {
    source                                  = "git::https://github.com/cloudposse/terraform-aws-alb.git?ref=tags/0.7.0"
    namespace                               = var.namespace
    stage                                   = var.stage
    name                                    = var.name
    attributes                              = var.attributes
    delimiter                               = var.delimiter
    vpc_id                                  = module.vpc.vpc_id
    security_group_ids                      = [module.vpc.vpc_default_security_group_id]
    subnet_ids                              = module.subnets.public_subnet_ids
    internal                                = false
    http_enabled                            = true
    access_logs_enabled                     = false
    alb_access_logs_s3_bucket_force_destroy = true
    access_logs_region                      = var.region
    cross_zone_load_balancing_enabled       = true
    http2_enabled                           = true
    deletion_protection_enabled             = false
    tags                                    = var.tags
  }

  resource "aws_ecs_cluster" "default" {
    name = module.label.id
    tags = module.label.tags
  }

  resource "aws_sns_topic" "sns_topic" {
    name         = module.label.id
    display_name = "Test terraform-aws-ecs-atlantis"
    tags         = module.label.tags
  }

  module "kms_key" {
    source                  = "git::https://github.com/cloudposse/terraform-aws-kms-key.git?ref=tags/0.3.0"
    enabled                 = var.enabled
    namespace               = var.namespace
    stage                   = var.stage
    name                    = var.name
    attributes              = var.attributes
    delimiter               = var.delimiter
    tags                    = var.tags
    description             = "Test terraform-aws-ecs-atlantis KMS key"
    deletion_window_in_days = 7
    enable_key_rotation     = false
  }

  module "atlantis" {
    source = "cloudposse/ecs-atlantis/aws"
    # Cloud Posse recommends pinning every module to a specific version
    # version = "x.x.x"
    enabled    = var.enabled
    namespace  = var.namespace
    stage      = var.stage
    name       = var.name
    attributes = var.attributes
    delimiter  = var.delimiter
    tags       = var.tags

    region               = var.region
    vpc_id               = module.vpc.vpc_id
    policy_arn           = var.policy_arn
    ssh_private_key_name = var.ssh_private_key_name
    ssh_public_key_name  = var.ssh_public_key_name
    kms_key_id           = module.kms_key.key_id

    atlantis_gh_user           = var.atlantis_gh_user
    atlantis_gh_team_whitelist = var.atlantis_gh_team_whitelist
    atlantis_gh_webhook_secret = var.atlantis_gh_webhook_secret
    atlantis_log_level         = var.atlantis_log_level
    atlantis_repo_config       = var.atlantis_repo_config
    atlantis_repo_whitelist    = var.atlantis_repo_whitelist
    atlantis_port              = var.atlantis_port
    atlantis_webhook_format    = var.atlantis_webhook_format
    atlantis_url_format        = var.atlantis_url_format

    default_backend_image = var.default_backend_image
    healthcheck_path      = var.healthcheck_path
    short_name            = var.short_name
    hostname              = var.hostname
    parent_zone_id        = var.parent_zone_id

    // Container
    container_cpu    = var.container_cpu
    container_memory = var.container_memory

    // Authentication
    authentication_type                           = var.authentication_type
    alb_ingress_listener_unauthenticated_priority = var.alb_ingress_listener_unauthenticated_priority
    alb_ingress_listener_authenticated_priority   = var.alb_ingress_listener_authenticated_priority
    alb_ingress_unauthenticated_hosts             = var.alb_ingress_unauthenticated_hosts
    alb_ingress_authenticated_hosts               = var.alb_ingress_authenticated_hosts
    alb_ingress_unauthenticated_paths             = var.alb_ingress_unauthenticated_paths
    alb_ingress_authenticated_paths               = var.alb_ingress_authenticated_paths
    authentication_cognito_user_pool_arn          = var.authentication_cognito_user_pool_arn
    authentication_cognito_user_pool_client_id    = var.authentication_cognito_user_pool_client_id
    authentication_cognito_user_pool_domain       = var.authentication_cognito_user_pool_domain
    authentication_oidc_client_id                 = var.authentication_oidc_client_id
    authentication_oidc_client_secret             = var.authentication_oidc_client_secret
    authentication_oidc_issuer                    = var.authentication_oidc_issuer
    authentication_oidc_authorization_endpoint    = var.authentication_oidc_authorization_endpoint
    authentication_oidc_token_endpoint            = var.authentication_oidc_token_endpoint
    authentication_oidc_user_info_endpoint        = var.authentication_oidc_user_info_endpoint

    // ECS
    private_subnet_ids = module.subnets.private_subnet_ids
    ecs_cluster_arn    = aws_ecs_cluster.default.arn
    ecs_cluster_name   = aws_ecs_cluster.default.name
    security_group_ids = var.security_group_ids
    desired_count      = var.desired_count
    launch_type        = var.launch_type

    // ALB
    alb_zone_id                                     = module.alb.alb_zone_id
    alb_arn_suffix                                  = module.alb.alb_arn_suffix
    alb_dns_name                                    = module.alb.alb_dns_name
    alb_security_group                              = module.alb.security_group_id
    alb_ingress_unauthenticated_listener_arns       = [module.alb.http_listener_arn]
    alb_ingress_unauthenticated_listener_arns_count = 1

    // CodePipeline
    codepipeline_enabled                 = var.codepipeline_enabled
    github_oauth_token                   = var.github_oauth_token
    github_webhooks_token                = var.github_webhooks_token
    repo_owner                           = var.repo_owner
    repo_name                            = var.repo_name
    branch                               = var.branch
    build_timeout                        = var.build_timeout
    webhook_enabled                      = var.webhook_enabled
    webhook_secret_length                = var.webhook_secret_length
    webhook_events                       = var.webhook_events
    codepipeline_s3_bucket_force_destroy = var.codepipeline_s3_bucket_force_destroy

    // Autoscaling
    autoscaling_enabled      = var.autoscaling_enabled
    autoscaling_min_capacity = var.autoscaling_min_capacity
    autoscaling_max_capacity = var.autoscaling_max_capacity

    // Alarms
    alb_target_group_alarms_enabled                   = var.alb_target_group_alarms_enabled
    ecs_alarms_enabled                                = var.ecs_alarms_enabled
    alb_target_group_alarms_alarm_actions             = [aws_sns_topic.sns_topic.arn]
    alb_target_group_alarms_ok_actions                = [aws_sns_topic.sns_topic.arn]
    alb_target_group_alarms_insufficient_data_actions = [aws_sns_topic.sns_topic.arn]
    ecs_alarms_cpu_utilization_high_alarm_actions     = [aws_sns_topic.sns_topic.arn]
    ecs_alarms_cpu_utilization_high_ok_actions        = [aws_sns_topic.sns_topic.arn]
    ecs_alarms_cpu_utilization_low_alarm_actions      = [aws_sns_topic.sns_topic.arn]
    ecs_alarms_cpu_utilization_low_ok_actions         = [aws_sns_topic.sns_topic.arn]
    ecs_alarms_memory_utilization_high_alarm_actions  = [aws_sns_topic.sns_topic.arn]
    ecs_alarms_memory_utilization_high_ok_actions     = [aws_sns_topic.sns_topic.arn]
    ecs_alarms_memory_utilization_low_alarm_actions   = [aws_sns_topic.sns_topic.arn]
    ecs_alarms_memory_utilization_low_ok_actions      = [aws_sns_topic.sns_topic.arn]
  }

Makefile Targets

Available targets:

  help                                Help screen
  help/all                            Display help for all targets
  help/short                          This help short screen
  lint                                Lint terraform code

Requirements

Name	Version
terraform	>= 0.13.0
aws	>= 2.0
random	>= 2.0

Providers

Name	Version
aws	>= 2.0
random	>= 2.0

Modules

Name	Source	Version
ecs_web_app	cloudposse/ecs-web-app/aws	0.60.0
github_webhooks	cloudposse/repository-webhooks/github	0.12.0
ssh_key_pair	cloudposse/ssm-tls-ssh-key-pair/aws	0.10.0
this	cloudposse/label/null	0.25.0

Resources

Name	Type
aws_iam_role_policy_attachment.default	resource
aws_route53_record.default	resource
aws_security_group_rule.egress_http	resource
aws_security_group_rule.egress_https	resource
aws_security_group_rule.egress_tcp_dns	resource
aws_security_group_rule.egress_udp_dns	resource
aws_ssm_parameter.atlantis_atlantis_url	resource
aws_ssm_parameter.atlantis_cognito_user_pool_arn	resource
aws_ssm_parameter.atlantis_cognito_user_pool_client_id	resource
aws_ssm_parameter.atlantis_cognito_user_pool_domain	resource
aws_ssm_parameter.atlantis_gh_team_whitelist	resource
aws_ssm_parameter.atlantis_gh_token	resource
aws_ssm_parameter.atlantis_gh_user	resource
aws_ssm_parameter.atlantis_gh_webhook_secret	resource
aws_ssm_parameter.atlantis_iam_role_arn	resource
aws_ssm_parameter.atlantis_log_level	resource
aws_ssm_parameter.atlantis_oidc_client_id	resource
aws_ssm_parameter.atlantis_oidc_client_secret	resource
aws_ssm_parameter.atlantis_port	resource
aws_ssm_parameter.atlantis_repo_config	resource
aws_ssm_parameter.atlantis_repo_whitelist	resource
aws_ssm_parameter.atlantis_wake_word	resource
aws_ssm_parameter.github_webhooks_token	resource
random_string.atlantis_gh_webhook_secret	resource
aws_kms_key.chamber_kms_key	data source
aws_ssm_parameter.atlantis_cognito_user_pool_arn	data source
aws_ssm_parameter.atlantis_cognito_user_pool_client_id	data source
aws_ssm_parameter.atlantis_cognito_user_pool_domain	data source
aws_ssm_parameter.atlantis_gh_token	data source
aws_ssm_parameter.atlantis_oidc_client_id	data source
aws_ssm_parameter.atlantis_oidc_client_secret	data source
aws_ssm_parameter.github_webhooks_token	data source

Inputs

Name	Description	Type	Default	Required
additional_tag_map	Additional key-value pairs to add to each map in `tags_as_list_of_maps`. Not added to `tags` or `id`. This is for some rare cases where resources want additional configuration of tags and therefore take a list of maps with tag key, value, and additional configuration.	`map(string)`	`{}`	no
alb_arn_suffix	The ARN suffix of the ALB	`string`	n/a	yes
alb_dns_name	DNS name of ALB	`string`	n/a	yes
alb_ingress_authenticated_hosts	Authenticated hosts to match in Hosts header (a maximum of 1 can be defined)	`list(string)`	`[]`	no
alb_ingress_authenticated_listener_arns	A list of authenticated ALB listener ARNs to attach ALB listener rules to	`list(string)`	`[]`	no
alb_ingress_authenticated_listener_arns_count	The number of authenticated ARNs in `alb_ingress_authenticated_listener_arns`. This is necessary to work around a limitation in Terraform where counts cannot be computed	`number`	`0`	no
alb_ingress_authenticated_paths	Authenticated path pattern to match (a maximum of 1 can be defined)	`list(string)`	[ "/*" ]	no
alb_ingress_listener_authenticated_priority	The priority for the rules with authentication, between 1 and 50000 (1 being highest priority). Must be different from `alb_ingress_listener_unauthenticated_priority` since a listener can't have multiple rules with the same priority	`number`	`100`	no
alb_ingress_listener_unauthenticated_priority	The priority for the rules without authentication, between 1 and 50000 (1 being highest priority). Must be different from `alb_ingress_listener_authenticated_priority` since a listener can't have multiple rules with the same priority	`number`	`50`	no
alb_ingress_unauthenticated_hosts	Unauthenticated hosts to match in Hosts header (a maximum of 1 can be defined)	`list(string)`	`[]`	no
alb_ingress_unauthenticated_listener_arns	A list of unauthenticated ALB listener ARNs to attach ALB listener rules to	`list(string)`	`[]`	no
alb_ingress_unauthenticated_listener_arns_count	The number of unauthenticated ARNs in `alb_ingress_unauthenticated_listener_arns`. This is necessary to work around a limitation in Terraform where counts cannot be computed	`number`	`0`	no
alb_ingress_unauthenticated_paths	Unauthenticated path pattern to match (a maximum of 1 can be defined)	`list(string)`	[ "/events" ]	no
alb_security_group	Security group of the ALB	`string`	n/a	yes
alb_target_group_alarms_alarm_actions	A list of ARNs (i.e. SNS Topic ARN) to execute when ALB Target Group alarms transition into an ALARM state from any other state.	`list(string)`	`[]`	no
alb_target_group_alarms_enabled	A boolean to enable/disable CloudWatch Alarms for ALB Target metrics	`bool`	`false`	no
alb_target_group_alarms_insufficient_data_actions	A list of ARNs (i.e. SNS Topic ARN) to execute when ALB Target Group alarms transition into an INSUFFICIENT_DATA state from any other state.	`list(string)`	`[]`	no
alb_target_group_alarms_ok_actions	A list of ARNs (i.e. SNS Topic ARN) to execute when ALB Target Group alarms transition into an OK state from any other state.	`list(string)`	`[]`	no
alb_zone_id	The ID of the zone in which ALB is provisioned	`string`	n/a	yes
atlantis_gh_team_whitelist	Atlantis GitHub team whitelist	`string`	`""`	no
atlantis_gh_user	Atlantis GitHub user	`string`	n/a	yes
atlantis_gh_webhook_secret	Atlantis GitHub webhook secret	`string`	`""`	no
atlantis_log_level	Atlantis log level	`string`	`"info"`	no
atlantis_port	Atlantis container port	`number`	`4141`	no
atlantis_repo_config	Path to atlantis server-side repo config file (https://www.runatlantis.io/docs/server-side-repo-config.html)	`string`	`"atlantis-repo-config.yaml"`	no
atlantis_repo_whitelist	Whitelist of repositories Atlantis will accept webhooks from	`list(string)`	`[]`	no
atlantis_url_format	Template for the Atlantis URL which is populated with the hostname	`string`	`"https://%s"`	no
atlantis_wake_word	Wake world for atlantis	`string`	`"atlantis"`	no
atlantis_webhook_format	Template for the Atlantis webhook URL which is populated with the hostname	`string`	`"https://%s/events"`	no
attributes	ID element. Additional attributes (e.g. `workers` or `cluster`) to add to `id`, in the order they appear in the list. New attributes are appended to the end of the list. The elements of the list are joined by the `delimiter` and treated as a single ID element.	`list(string)`	`[]`	no
authentication_cognito_user_pool_arn	Cognito User Pool ARN	`string`	`""`	no
authentication_cognito_user_pool_arn_ssm_name	SSM param name to lookup `authentication_cognito_user_pool_arn` if not provided	`string`	`""`	no
authentication_cognito_user_pool_client_id	Cognito User Pool Client ID	`string`	`""`	no
authentication_cognito_user_pool_client_id_ssm_name	SSM param name to lookup `authentication_cognito_user_pool_client_id` if not provided	`string`	`""`	no
authentication_cognito_user_pool_domain	Cognito User Pool Domain. The User Pool Domain should be set to the domain prefix (`xxx`) instead of full domain (https://xxx.auth.us-west-2.amazoncognito.com)	`string`	`""`	no
authentication_cognito_user_pool_domain_ssm_name	SSM param name to lookup `authentication_cognito_user_pool_domain` if not provided	`string`	`""`	no
authentication_oidc_authorization_endpoint	OIDC Authorization Endpoint	`string`	`""`	no
authentication_oidc_client_id	OIDC Client ID	`string`	`""`	no
authentication_oidc_client_id_ssm_name	SSM param name to lookup `authentication_oidc_client_id` if not provided	`string`	`""`	no
authentication_oidc_client_secret	OIDC Client Secret	`string`	`""`	no
authentication_oidc_client_secret_ssm_name	SSM param name to lookup `authentication_oidc_client_secret` if not provided	`string`	`""`	no
authentication_oidc_issuer	OIDC Issuer	`string`	`""`	no
authentication_oidc_token_endpoint	OIDC Token Endpoint	`string`	`""`	no
authentication_oidc_user_info_endpoint	OIDC User Info Endpoint	`string`	`""`	no
authentication_type	Authentication type. Supported values are `COGNITO` and `OIDC`	`string`	`""`	no
autoscaling_enabled	A boolean to enable/disable Autoscaling policy for ECS Service	`bool`	`false`	no
autoscaling_max_capacity	Atlantis maximum tasks to run	`number`	`1`	no
autoscaling_min_capacity	Atlantis minimum tasks to run	`number`	`1`	no
branch	Atlantis branch of the GitHub repository, e.g. `master`	`string`	`"master"`	no
build_timeout	How long in minutes, from 5 to 480 (8 hours), for AWS CodeBuild to wait until timing out any related build that does not get marked as completed.	`number`	`10`	no
chamber_format	Format to store parameters in SSM, for consumption with chamber	`string`	`"/%s/%s"`	no
chamber_service	SSM parameter service name for use with chamber. This is used in chamber_format where /$chamber_service/$parameter would be the default.	`string`	`"atlantis"`	no
codepipeline_enabled	A boolean to enable/disable AWS Codepipeline and ECR	`bool`	`false`	no
codepipeline_s3_bucket_force_destroy	A boolean that indicates all objects should be deleted from the CodePipeline artifact store S3 bucket so that the bucket can be destroyed without error	`bool`	`false`	no
container_cpu	Atlantis CPUs per task	`number`	`256`	no
container_memory	Atlantis memory per task	`number`	`512`	no
container_repo_credentials	Container repository credentials; required when using a private repo. This map currently supports a single key; "credentialsParameter", which should be the ARN of a Secrets Manager's secret holding the credentials	`map(string)`	`null`	no
context	Single object for setting entire context at once. See description of individual variables for details. Leave string and numeric variables as `null` to use default value. Individual variable settings (non-null) override settings in context object, except for attributes, tags, and additional_tag_map, which are merged.	`any`	{ "additional_tag_map": {}, "attributes": [], "delimiter": null, "descriptor_formats": {}, "enabled": true, "environment": null, "id_length_limit": null, "label_key_case": null, "label_order": [], "label_value_case": null, "labels_as_tags": [ "unset" ], "name": null, "namespace": null, "regex_replace_chars": null, "stage": null, "tags": {}, "tenant": null }	no
default_backend_image	ECS default (bootstrap) image	`string`	`"cloudposse/default-backend:0.1.2"`	no
delimiter	Delimiter to be used between ID elements. Defaults to `-` (hyphen). Set to `""` to use no delimiter at all.	`string`	`null`	no
descriptor_formats	Describe additional descriptors to be output in the `descriptors` output map. Map of maps. Keys are names of descriptors. Values are maps of the form `{<br> format = string<br> labels = list(string)<br>}` (Type is `any` so the map values can later be enhanced to provide additional options.) `format` is a Terraform format string to be passed to the `format()` function. `labels` is a list of labels, in order, to pass to `format()` function. Label values will be normalized before being passed to `format()` so they will be identical to how they appear in `id`. Default is `{}` (`descriptors` output will be empty).	`any`	`{}`	no
desired_count	Atlantis desired number of tasks	`number`	`1`	no
ecs_alarms_cpu_utilization_high_alarm_actions	A list of ARNs (i.e. SNS Topic ARN) to notify on CPU Utilization High Alarm action	`list(string)`	`[]`	no
ecs_alarms_cpu_utilization_high_ok_actions	A list of ARNs (i.e. SNS Topic ARN) to notify on CPU Utilization High OK action	`list(string)`	`[]`	no
ecs_alarms_cpu_utilization_low_alarm_actions	A list of ARNs (i.e. SNS Topic ARN) to notify on CPU Utilization Low Alarm action	`list(string)`	`[]`	no
ecs_alarms_cpu_utilization_low_ok_actions	A list of ARNs (i.e. SNS Topic ARN) to notify on CPU Utilization Low OK action	`list(string)`	`[]`	no
ecs_alarms_enabled	A boolean to enable/disable CloudWatch Alarms for ECS Service metrics	`bool`	`false`	no
ecs_alarms_memory_utilization_high_alarm_actions	A list of ARNs (i.e. SNS Topic ARN) to notify on Memory Utilization High Alarm action	`list(string)`	`[]`	no
ecs_alarms_memory_utilization_high_ok_actions	A list of ARNs (i.e. SNS Topic ARN) to notify on Memory Utilization High OK action	`list(string)`	`[]`	no
ecs_alarms_memory_utilization_low_alarm_actions	A list of ARNs (i.e. SNS Topic ARN) to notify on Memory Utilization Low Alarm action	`list(string)`	`[]`	no
ecs_alarms_memory_utilization_low_ok_actions	A list of ARNs (i.e. SNS Topic ARN) to notify on Memory Utilization Low OK action	`list(string)`	`[]`	no
ecs_cluster_arn	ARN of the ECS cluster to deploy Atlantis	`string`	n/a	yes
ecs_cluster_name	Name of the ECS cluster to deploy Atlantis	`string`	n/a	yes
enabled	Set to false to prevent the module from creating any resources	`bool`	`null`	no
environment	ID element. Usually used for region e.g. 'uw2', 'us-west-2', OR role 'prod', 'staging', 'dev', 'UAT'	`string`	`null`	no
github_oauth_token	GitHub OAuth token. If not provided the token is looked up from SSM	`string`	`""`	no
github_oauth_token_ssm_name	SSM param name to lookup `github_oauth_token` if not provided	`string`	`""`	no
github_webhooks_token	GitHub OAuth Token with permissions to create webhooks. If not provided the token is looked up from SSM	`string`	`""`	no
github_webhooks_token_ssm_name	SSM param name to lookup `github_webhooks_token` if not provided	`string`	`""`	no
healthcheck_path	Healthcheck path	`string`	`"/healthz"`	no
hostname	Atlantis URL	`string`	`""`	no
id_length_limit	Limit `id` to this many characters (minimum 6). Set to `0` for unlimited length. Set to `null` for keep the existing setting, which defaults to `0`. Does not affect `id_full`.	`number`	`null`	no
kms_key_id	KMS key ID used to encrypt SSM SecureString parameters	`string`	`""`	no
label_key_case	Controls the letter case of the `tags` keys (label names) for tags generated by this module. Does not affect keys of tags passed in via the `tags` input. Possible values: `lower`, `title`, `upper`. Default value: `title`.	`string`	`null`	no
label_order	The order in which the labels (ID elements) appear in the `id`. Defaults to ["namespace", "environment", "stage", "name", "attributes"]. You can omit any of the 6 labels ("tenant" is the 6th), but at least one must be present.	`list(string)`	`null`	no
label_value_case	Controls the letter case of ID elements (labels) as included in `id`, set as tag values, and output by this module individually. Does not affect values of tags passed in via the `tags` input. Possible values: `lower`, `title`, `upper` and `none` (no transformation). Set this to `title` and set `delimiter` to `""` to yield Pascal Case IDs. Default value: `lower`.	`string`	`null`	no
labels_as_tags	Set of labels (ID elements) to include as tags in the `tags` output. Default is to include all labels. Tags with empty values will not be included in the `tags` output. Set to `[]` to suppress all generated tags. Notes: The value of the `name` tag, if included, will be the `id`, not the `name`. Unlike other `null-label` inputs, the initial setting of `labels_as_tags` cannot be changed in later chained modules. Attempts to change it will be silently ignored.	`set(string)`	[ "default" ]	no
launch_type	The ECS launch type (valid options: FARGATE or EC2)	`string`	`"FARGATE"`	no
name	ID element. Usually the component or solution name, e.g. 'app' or 'jenkins'. This is the only ID element not also included as a `tag`. The "name" tag is set to the full `id` string. There is no tag with the value of the `name` input.	`string`	`null`	no
namespace	ID element. Usually an abbreviation of your organization name, e.g. 'eg' or 'cp', to help ensure generated IDs are globally unique	`string`	`null`	no
overwrite_ssm_parameter	Whether to overwrite an existing SSM parameter	`bool`	`true`	no
parent_zone_id	The zone ID where the DNS record for the `short_name` will be written	`string`	`""`	no
policy_arn	Permission to grant to atlantis server	`string`	`"arn:aws:iam::aws:policy/AdministratorAccess"`	no
private_subnet_ids	The private subnet IDs	`list(string)`	`[]`	no
regex_replace_chars	Terraform regular expression (regex) string. Characters matching the regex will be removed from the ID elements. If not set, `"/[^a-zA-Z0-9-]/"` is used to remove all characters other than hyphens, letters and digits.	`string`	`null`	no
region	AWS Region for S3 bucket	`string`	n/a	yes
repo_name	GitHub repository name of the atlantis to be built and deployed to ECS.	`string`	n/a	yes
repo_owner	GitHub organization containing the Atlantis repository	`string`	n/a	yes
security_group_ids	Additional Security Group IDs to allow into ECS Service.	`list(string)`	`[]`	no
short_name	Alantis short DNS name (e.g. `atlantis`)	`string`	`"atlantis"`	no
ssh_private_key_name	Atlantis SSH private key name	`string`	`"atlantis_ssh_private_key"`	no
ssh_public_key_name	Atlantis SSH public key name	`string`	`"atlantis_ssh_public_key"`	no
stage	ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release'	`string`	`null`	no
tags	Additional tags (e.g. `{'BusinessUnit': 'XYZ'}`). Neither the tag keys nor the tag values will be modified by this module.	`map(string)`	`{}`	no
tenant	ID element _(Rarely used, not included by default)_. A customer identifier, indicating who this instance of a resource is for	`string`	`null`	no
use_alb_security_group	A flag to enable/disable adding the ingress rule to the ALB security group	`bool`	`true`	no
vpc_id	VPC ID for the ECS Cluster	`string`	n/a	yes
webhook_enabled	Set to false to prevent the module from creating any webhook resources	`bool`	`true`	no
webhook_events	A list of events which should trigger the webhook.	`list(string)`	[ "issue_comment", "pull_request", "pull_request_review", "pull_request_review_comment", "push" ]	no
webhook_secret_length	GitHub webhook secret length	`number`	`32`	no

Outputs

Name	Description
alb_ingress_target_group_arn	ALB Target Group ARN
alb_ingress_target_group_arn_suffix	ALB Target Group ARN suffix
alb_ingress_target_group_name	ALB Target Group name
atlantis_ssh_public_key	Atlantis SSH Public Key
atlantis_url	The URL endpoint for the atlantis server
atlantis_webhook_url	atlantis webhook URL
codebuild_badge_url	The URL of the build badge when badge_enabled is enabled
codebuild_cache_bucket_arn	CodeBuild cache S3 bucket ARN
codebuild_cache_bucket_name	CodeBuild cache S3 bucket name
codebuild_project_id	CodeBuild project ID
codebuild_project_name	CodeBuild project name
codebuild_role_arn	CodeBuild IAM Role ARN
codebuild_role_id	CodeBuild IAM Role ID
codepipeline_arn	CodePipeline ARN
codepipeline_id	CodePipeline ID
codepipeline_webhook_id	The CodePipeline webhook's ID
codepipeline_webhook_url	The CodePipeline webhook's URL. POST events to this endpoint to trigger the target
container_definition_json	JSON encoded list of container definitions for use with other terraform resources such as aws_ecs_task_definition
container_definition_json_map	JSON encoded container definitions for use with other terraform resources such as aws_ecs_task_definition
ecr_registry_id	Registry ID
ecr_repository_name	Repository name
ecr_repository_url	Repository URL
ecs_alarms_cpu_utilization_high_cloudwatch_metric_alarm_arn	ECS CPU utilization high CloudWatch metric alarm ARN
ecs_alarms_cpu_utilization_high_cloudwatch_metric_alarm_id	ECS CPU utilization high CloudWatch metric alarm ID
ecs_alarms_cpu_utilization_low_cloudwatch_metric_alarm_arn	ECS CPU utilization low CloudWatch metric alarm ARN
ecs_alarms_cpu_utilization_low_cloudwatch_metric_alarm_id	ECS CPU utilization low CloudWatch metric alarm ID
ecs_alarms_memory_utilization_high_cloudwatch_metric_alarm_arn	ECS Memory utilization high CloudWatch metric alarm ARN
ecs_alarms_memory_utilization_high_cloudwatch_metric_alarm_id	ECS Memory utilization high CloudWatch metric alarm ID
ecs_alarms_memory_utilization_low_cloudwatch_metric_alarm_arn	ECS Memory utilization low CloudWatch metric alarm ARN
ecs_alarms_memory_utilization_low_cloudwatch_metric_alarm_id	ECS Memory utilization low CloudWatch metric alarm ID
ecs_cloudwatch_autoscaling_scale_down_policy_arn	ARN of the scale down policy
ecs_cloudwatch_autoscaling_scale_up_policy_arn	ARN of the scale up policy
ecs_exec_role_policy_id	The ECS service role policy ID, in the form of `role_name:role_policy_name`
ecs_exec_role_policy_name	ECS service role name
ecs_service_name	ECS Service name
ecs_service_role_arn	ECS Service role ARN
ecs_service_security_group_id	Security Group ID of the ECS task
ecs_task_definition_family	ECS task definition family
ecs_task_definition_revision	ECS task definition revision
ecs_task_exec_role_arn	ECS Task exec role ARN
ecs_task_exec_role_name	ECS Task role name
ecs_task_role_arn	ECS Task role ARN
ecs_task_role_id	ECS Task role id
ecs_task_role_name	ECS Task role name
httpcode_elb_5xx_count_cloudwatch_metric_alarm_arn	ALB 5xx count CloudWatch metric alarm ARN
httpcode_elb_5xx_count_cloudwatch_metric_alarm_id	ALB 5xx count CloudWatch metric alarm ID
httpcode_target_3xx_count_cloudwatch_metric_alarm_arn	ALB Target Group 3xx count CloudWatch metric alarm ARN
httpcode_target_3xx_count_cloudwatch_metric_alarm_id	ALB Target Group 3xx count CloudWatch metric alarm ID
httpcode_target_4xx_count_cloudwatch_metric_alarm_arn	ALB Target Group 4xx count CloudWatch metric alarm ARN
httpcode_target_4xx_count_cloudwatch_metric_alarm_id	ALB Target Group 4xx count CloudWatch metric alarm ID
httpcode_target_5xx_count_cloudwatch_metric_alarm_arn	ALB Target Group 5xx count CloudWatch metric alarm ARN
httpcode_target_5xx_count_cloudwatch_metric_alarm_id	ALB Target Group 5xx count CloudWatch metric alarm ID
target_response_time_average_cloudwatch_metric_alarm_arn	ALB Target Group response time average CloudWatch metric alarm ARN
target_response_time_average_cloudwatch_metric_alarm_id	ALB Target Group response time average CloudWatch metric alarm ID

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Related Projects

Check out these related projects.

terraform-aws-ecs-web-app - Terraform module that implements a web app on ECS and supports autoscaling, CI/CD, monitoring, ALB integration, and much more
terraform-aws-alb - Terraform module to provision a standard ALB for HTTP/HTTP traffic
terraform-aws-alb-ingress - Terraform module to provision an HTTP style ingress rule based on hostname and path for an ALB
terraform-aws-codebuild - Terraform Module to easily leverage AWS CodeBuild for Continuous Integration
terraform-aws-ecr - Terraform Module to manage Docker Container Registries on AWS ECR
terraform-aws-ecs-alb-service-task - Terraform module which implements an ECS service which exposes a web service via ALB.
terraform-aws-ecs-codepipeline - Terraform Module for CI/CD with AWS Code Pipeline and Code Build for ECS
terraform-aws-ecs-container-definition - Terraform module to generate well-formed JSON documents that are passed to the aws_ecs_task_definition Terraform resource
terraform-aws-lb-s3-bucket - Terraform module to provision an S3 bucket with built in IAM policy to allow AWS Load Balancers to ship access logs.

References

For additional context, refer to some of these links.

atlantis - Official home of the Atlantis project

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Copyright

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Contributors

Josh Myers	Erik Osterman	Andriy Knysh	Igor Rodionov

Name		Name	Last commit message	Last commit date
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.github		.github
docs		docs
examples		examples
test		test
.gitignore		.gitignore
LICENSE		LICENSE
Makefile		Makefile
README.md		README.md
README.yaml		README.yaml
context.tf		context.tf
main.tf		main.tf
outputs.tf		outputs.tf
variables.tf		variables.tf
versions.tf		versions.tf

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