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README Header

Cloud Posse

terraform-aws-ecs-web-app Build Status Latest Release Slack Community

A Terraform module which implements a web app on ECS and supporting AWS resources.


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

Terraform Open Source Modules

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!

Usage

IMPORTANT: The master branch is used in source just as an example. In your code, do not pin to master because there may be breaking changes between releases. Instead pin to the release tag (e.g. ?ref=tags/x.y.z) of one of our latest releases.

Module usage examples:

module "default-backend-web-app" {
  source                                          = "git::https://github.com/cloudposse/terraform-aws-ecs-web-app.git?ref=master"
  namespace                                       = "eg"
  stage                                           = "testing"
  name                                            = "appname"
  vpc_id                                          = "${module.vpc.vpc_id}"
  alb_ingress_unauthenticated_listener_arns       = "${module.alb.listener_arns}"
  alb_ingress_unauthenticated_listener_arns_count = "1"
  aws_logs_region                                 = "us-west-2"
  ecs_cluster_arn                                 = "${aws_ecs_cluster.default.arn}"
  ecs_cluster_name                                = "${aws_ecs_cluster.default.name}"
  ecs_security_group_ids                          = ["${module.vpc.vpc_default_security_group_id}"]
  ecs_private_subnet_ids                          = ["${module.subnets.private_subnet_ids}"]
  alb_ingress_healthcheck_path                    = "/healthz"
  alb_ingress_unauthenticated_paths               = ["/*"]
  codepipeline_enabled                            = "false"

  environment = [
    {
      name = "COOKIE"
      value = "cookiemonster"
    },
    {
      name = "PORT"
      value = "80"
    }
  ]
}

Makefile Targets

Available targets:

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

Inputs

Name Description Type Default Required
alb_arn_suffix ARN suffix of the ALB for the Target Group string `` no
alb_ingress_authenticated_hosts Authenticated hosts to match in Hosts header list <list> no
alb_ingress_authenticated_listener_arns A list of authenticated ALB listener ARNs to attach ALB listener rules to list <list> 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 string 0 no
alb_ingress_authenticated_paths Authenticated path pattern to match (a maximum of 1 can be defined) list <list> no
alb_ingress_healthcheck_path The path of the healthcheck which the ALB checks 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 string 300 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 string 1000 no
alb_ingress_unauthenticated_hosts Unauthenticated hosts to match in Hosts header list <list> no
alb_ingress_unauthenticated_listener_arns A list of unauthenticated ALB listener ARNs to attach ALB listener rules to list <list> 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 string 0 no
alb_ingress_unauthenticated_paths Unauthenticated path pattern to match (a maximum of 1 can be defined) list <list> no
alb_name Name of the ALB for the Target Group string `` no
alb_target_group_alarms_3xx_threshold The maximum number of 3XX HTTPCodes in a given period for ECS Service string 25 no
alb_target_group_alarms_4xx_threshold The maximum number of 4XX HTTPCodes in a given period for ECS Service string 25 no
alb_target_group_alarms_5xx_threshold The maximum number of 5XX HTTPCodes in a given period for ECS Service string 25 no
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 <list> no
alb_target_group_alarms_enabled A boolean to enable/disable CloudWatch Alarms for ALB Target metrics string false no
alb_target_group_alarms_evaluation_periods The number of periods to analyze for ALB CloudWatch Alarms string 1 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 <list> 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 <list> no
alb_target_group_alarms_period The period (in seconds) to analyze for ALB CloudWatch Alarms string 300 no
alb_target_group_alarms_response_time_threshold The maximum ALB Target Group response time string 0.5 no
alb_target_group_arn Pass target group down to module string `` no
attributes List of attributes to add to label list <list> no
authentication_cognito_user_pool_arn Cognito User Pool ARN string `` no
authentication_cognito_user_pool_client_id Cognito User Pool Client ID 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_oidc_authorization_endpoint OIDC Authorization Endpoint string `` no
authentication_oidc_client_id OIDC Client ID string `` no
authentication_oidc_client_secret OIDC Client Secret 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_dimension Dimension to autoscale on (valid options: cpu, memory) string memory no
autoscaling_enabled A boolean to enable/disable Autoscaling policy for ECS Service string false no
autoscaling_max_capacity Maximum number of running instances of a Service string 2 no
autoscaling_min_capacity Minimum number of running instances of a Service string 1 no
autoscaling_scale_down_adjustment Scaling adjustment to make during scale down event string -1 no
autoscaling_scale_down_cooldown Period (in seconds) to wait between scale down events string 300 no
autoscaling_scale_up_adjustment Scaling adjustment to make during scale up event string 1 no
autoscaling_scale_up_cooldown Period (in seconds) to wait between scale up events string 60 no
aws_logs_region The region for the AWS Cloudwatch Logs group string - yes
badge_enabled Generates a publicly-accessible URL for the projects build badge. Available as badge_url attribute when enabled string false no
branch Branch of the GitHub repository, e.g. master string `` no
build_image Docker image for build environment, e.g. aws/codebuild/docker:docker:17.09.0 string aws/codebuild/docker:17.09.0 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 string 60 no
buildspec Declaration to use for building the project. For more info string `` no
codepipeline_enabled A boolean to enable/disable AWS Codepipeline and ECR string true no
container_cpu The vCPU setting to control cpu limits of container. (If FARGATE launch type is used below, this must be a supported vCPU size from the table here: https://docs.aws.amazon.com/AmazonECS/latest/developerguide/task-cpu-memory-error.html) string 256 no
container_image The default container image to use in container definition string cloudposse/default-backend no
container_memory The amount of RAM to allow container to use in MB. (If FARGATE launch type is used below, this must be a supported Memory size from the table here: https://docs.aws.amazon.com/AmazonECS/latest/developerguide/task-cpu-memory-error.html) string 512 no
container_memory_reservation The amount of RAM (Soft Limit) to allow container to use in MB. This value must be less than container_memory if set string `` no
container_port The port number on the container bound to assigned host_port string 80 no
delimiter The delimiter to be used in labels string - no
desired_count The desired number of tasks to start with. Set this to 0 if using DAEMON Service type. (FARGATE does not suppoert DAEMON Service type) string 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 <list> no
ecs_alarms_cpu_utilization_high_evaluation_periods Number of periods to evaluate for the alarm string 1 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 <list> no
ecs_alarms_cpu_utilization_high_period Duration in seconds to evaluate for the alarm string 300 no
ecs_alarms_cpu_utilization_high_threshold The maximum percentage of CPU utilization average string 80 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 <list> no
ecs_alarms_cpu_utilization_low_evaluation_periods Number of periods to evaluate for the alarm string 1 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 <list> no
ecs_alarms_cpu_utilization_low_period Duration in seconds to evaluate for the alarm string 300 no
ecs_alarms_cpu_utilization_low_threshold The minimum percentage of CPU utilization average string 20 no
ecs_alarms_enabled A boolean to enable/disable CloudWatch Alarms for ECS Service metrics string 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 <list> no
ecs_alarms_memory_utilization_high_evaluation_periods Number of periods to evaluate for the alarm string 1 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 <list> no
ecs_alarms_memory_utilization_high_period Duration in seconds to evaluate for the alarm string 300 no
ecs_alarms_memory_utilization_high_threshold The maximum percentage of Memory utilization average string 80 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 <list> no
ecs_alarms_memory_utilization_low_evaluation_periods Number of periods to evaluate for the alarm string 1 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 <list> no
ecs_alarms_memory_utilization_low_period Duration in seconds to evaluate for the alarm string 300 no
ecs_alarms_memory_utilization_low_threshold The minimum percentage of Memory utilization average string 20 no
ecs_cluster_arn The ECS Cluster ARN where ECS Service will be provisioned string - yes
ecs_cluster_name The ECS Cluster Name to use in ECS Code Pipeline Deployment step string - yes
ecs_private_subnet_ids List of Private Subnet IDs to provision ECS Service onto list - yes
ecs_security_group_ids Additional Security Group IDs to allow into ECS Service list <list> no
environment The environment variables for the task definition. This is a list of maps list <list> no
github_oauth_token GitHub Oauth Token with permissions to access private repositories string `` no
github_webhook_events A list of events which should trigger the webhook. See a list of available events list <list> no
health_check_grace_period_seconds Seconds to ignore failing load balancer health checks on newly instantiated tasks to prevent premature shutdown, up to 7200. Only valid for services configured to use load balancers string 0 no
healthcheck A map containing command (string), interval (duration in seconds), retries (1-10, number of times to retry before marking container unhealthy, and startPeriod (0-300, optional grace period to wait, in seconds, before failed healthchecks count toward retries) map <map> no
host_port The port number to bind container_port to on the host string `` no
launch_type The ECS launch type (valid options: FARGATE or EC2) string FARGATE no
name Name (unique identifier for app or service) string - yes
namespace Namespace (e.g. eg or cp) string - yes
poll_source_changes Periodically check the location of your source content and run the pipeline if changes are detected string false no
port_mappings The port mappings to configure for the container. This is a list of maps. Each map should contain "containerPort", "hostPort", and "protocol", where "protocol" is one of "tcp" or "udp". If using containers in a task with the awsvpc or host network mode, the hostPort can either be left blank or set to the same value as the containerPort list <list> no
protocol The protocol used for the port mapping. Options: tcp or udp string tcp no
repo_name GitHub repository name of the application to be built and deployed to ECS string `` no
repo_owner GitHub Organization or Username string `` no
stage Stage (e.g. prod, dev, staging) string - yes
tags Map of key-value pairs to use for tags map <map> no
vpc_id The VPC ID where resources are created string - yes
webhook_authentication The type of authentication to use. One of IP, GITHUB_HMAC, or UNAUTHENTICATED string GITHUB_HMAC no
webhook_enabled Set to false to prevent the module from creating any webhook resources string true no
webhook_filter_json_path The JSON path to filter on string $.ref no
webhook_filter_match_equals The value to match on (e.g. refs/heads/{Branch}) string refs/heads/{Branch} no
webhook_target_action The name of the action in a pipeline you want to connect to the webhook. The action must be from the source (first) stage of the pipeline string Source no
alb_http_listener_arn ALB production listener arn for Blue/Green string `` no
alb_ssl_listener_arn ALB SSL listener arn for Blue/Green string `` no
alb_test_listener_arn ALB test listener arn for Blue/Green string `` no
alb_ingress_prod_listener_arns_count The number of production ingress listeners string 0 no
blue_termination_wait_time_in_minutes The number of minutes to wait after a successful deployment before terminating the old instances. string 60 no

Outputs

Name Description
badge_url The URL of the build badge when badge_enabled is enabled
scale_down_policy_arn Autoscaling scale up policy ARN
scale_up_policy_arn Autoscaling scale up policy ARN
service_name ECS Service Name
service_security_group_id Security Group id of the ECS task
task_role_arn ECS Task role ARN
task_role_name ECS Task role name
webhook_id The CodePipeline webhook's ARN.
webhook_url The CodePipeline webhook's URL. POST events to this endpoint to trigger the target.

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Copyright

Copyright © 2017-2019 Cloud Posse, LLC

License

License

See LICENSE for full details.

Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
distributed with this work for additional information
regarding copyright ownership.  The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License.  You may obtain a copy of the License at

  https://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied.  See the License for the
specific language governing permissions and limitations
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About

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Cloud Posse

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Contributors

Erik Osterman
Erik Osterman
Igor Rodionov
Igor Rodionov
Andriy Knysh
Andriy Knysh
Sarkis Varozian
Sarkis Varozian

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