Terraform & Fargate example

A dead simple example to setup AWS Fargate using Fargate CLI + Terraform

Features

• Use Terraform to setup AWS ECS basic environment
• Use Fargate CLI to create Fargate services without hassle
• Zero-downtime deploy thanks to Fargate

Why

We can create all of AWS ECS environment with Terraform. However, it requires a lot of Terraform boilerplates and understanding how Terraform works. Instead of copy & paste HCL from the Terraform document, let’s delegate some parts to Fargate CLI.

How to use

Initial Setup

• Install prerequisites
  • Terraform https://learn.hashicorp.com/terraform/getting-started/install.html
  • Fargate CLI https://github.com/awslabs/fargatecli/releases/latest

cp aws-credentials.ini.example aws-credentials.ini
# Add your credentials
vim aws-credentials.ini
# Initialize Terraform
make init

Create service

make create

Show information

make info

Deploy service

make deploy

Note: This will build Dockerfile in the current directory. If you have other deploy strategy, edit Makefile.

Delere everything

make destroy

Note: ECS Execution Role will not be deleted.

What will be created?

By Terraform:

• ECS Cluser
• EC2 Security Group
• ECR Repository

By Fargate CLI:

• ECS Task Definition
• ECS Service
• ECS Task
• ECS Task Execution Role
• ALB
• ALB Target Group
• CloudWatch Log Group