ECS App (EC2)

This module creates resources for a containarized ECS application.

EC2

This is a version for EC2 backed ECS cluster.

The service is behind a load balancer which means it is exposed. A HTTP healthcheck is required.

Required resources

• ECS cluster
• VPC
• VPC subnets
• Application Load Balancer (ALB)

Creates resources

• ECS service
• ECS task definition
• Container definition (using Cloudposse module)
• ECR repository
• IAM task execution role
• Custom policy attachment
• CloudWatch log group
• Security group
• ALB target group
• ALB listener rule

Requirements

Name	Version
terraform	>= 0.13

Providers

Name	Version
aws	n/a

Inputs

Name	Description	Type	Default	Required
alb_arn	application load balancer under which target group and services will be registered	any	n/a	yes
app	app name	any	n/a	yes
cluster_name	ecs cluster name where the services will be registered	any	n/a	yes
cooldown	n/a	number	60	no
cpu	CPU reservation for the task	number	256	no
deregistration_delay	n/a	number	30	no
ecr_tag_prefix_list	n/a	list	["latest"]	no
ecr_number_of_newest_tags	n/a	number	90	no
ecr_untagged_lifetime	n/a	number	1	no
environment	n/a	list	[]	no
healthcheck_grace	n/a	number	0	no
healthcheck_healthy_threshold	n/a	number	3	no
healthcheck_interval	n/a	number	60	no
healthcheck_matcher	n/a	string	"200"	no
healthcheck_path	n/a	string	"/"	no
healthcheck_timeout	n/a	number	5	no
healthcheck_unhealthy_threshold	n/a	number	3	no
image	override image - disables creating ecr repository	string	""	no
load_balancing_algorithm_type	n/a	string	"least_outstanding_requests"	no
log_retention	for how many days to keep app logs	number	30	no
max_capacity	n/a	number	1	no
max_healthy	n/a	number	200	no
memory	MEM reservation for the task	number	256	no
memory_limit	MEM hard limit for the task	number	0	no
min_capacity	n/a	number	1	no
min_healthy	n/a	number	50	no
name	name of this specific service	any	n/a	yes
placement_constraint_expression	n/a	string	"agentConnected==true"	no
placement_constraint_type	n/a	string	"memberOf"	no
policy	IAM Policy heredoc to use with task	string	""	no
port	port on which the service listens	number	80	no
priority	listener rule priority - must be unique to each ecs-app (module)	any	n/a	yes
private_subnet_ids	list of private subnets where to provision services	list	n/a	yes
project	project name	any	n/a	yes
scale_down	n/a	number	30	no
scale_up	n/a	number	80	no
scheduling_strategy	n/a	string	"REPLICA"	no
secrets	n/a	list	[]	no
stage	stage name	any	n/a	yes
tags	n/a	map	{}	no
url	url for the alb listener	any	n/a	yes
vpc_id	vpc id - used in target group, security group etc	any	n/a	yes

Outputs

Name	Description
cloudwatch_log_group_arn	n/a
ecr_repository	n/a