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README.md

Hello-CTM Infra

This repo houses the infrastructure for Hello-CTM, it mainly consists of:

  • 1 VPC
  • 4 subnets (2 public, 2 private)
  • 1 ALB
  • 1 ECR
  • 1 ECS cluster with a single service running
  • Security groups
  • IAM roles
  • CloudWatch alerts for >75% CPU and memory, if there's ever only 1 or less tasks running, or if there's 1 or less healthy targets in the ALB TG.

Backend

While testing locally the statefile is stored locally, but for a proper environment it would be stored in S3.

for_each vs. count

When a loop was required and I felt it appropriate, I went with for_each instead of count.
This allows the resources to be indexed via a key rather than just their order in a list.
While more verbose, this means that changing an item in a list won't force a recreation of all other items in the list.

Providers

Name Version
aws n/a

Inputs

Name Description Type Default Required
env Which environemnt (dev|uat|prod) any n/a yes
image_tag the container image tag to use any n/a yes
name The name of your project any n/a yes
private_subnets A list of private subnets to create 
list(object({
    cidr_block        = string
    availability_zone = string
  }))
 n/a yes
public_subnets A list of public subnets to create 
list(object({
    cidr_block        = string
    availability_zone = string
  }))
 n/a yes
region The AWS region any n/a yes
container_port The port your container will listen on number 5000 no