reymaster / terraform-microservices-example

Using Terraform to deploy microservices that communicate with each other

terraform-microservices-example

This project is a simple example of using Terraform to deploy two microservices to AWS (GCP coming soon!) that can communicate with each other via servive discovery. The two microservices are a frontend webserver (using Next.js) and a backend API server (using Flask). You can use any framework/libraries you want for these microservices, what's provided here is just a starting point!

Installation

AWS

• Ensure you have installed: Terraform, Docker, and Docker Compose.
• Clone this repo.
• Sign up for AWS if you haven't already.
• Create a repositority called fe in ECR repository console: https://[YOUR-REGION].console.aws.amazon.com/ecr/create-repository
• Create a repositority called api in ECR repository console: https://[YOUR-REGION].console.aws.amazon.com/ecr/create-repository
• Copy repository hostname: [YOUR_DOCKER_REPO_ID].dkr.ecr.[YOUR-REGION].amazonaws.com
• Set the copied repository hostname to TF_VAR_docker_repo in your terminal.
• In your terminal, run: export TF_VAR_docker_repo=[YOUR_DOCKER_REPO_ID]
• In your terminal, run: aws ecr get-login-password --region [YOUR-REGION] | docker login --username AWS --password-stdin [YOUR_DOCKER_REPO_ID].dkr.ecr.us-west-2.amazonaws.com

Usage

Deploy

./deploy.sh

Terraform will show you a load balancer URL when it has finished deploying. Wait about 60 seconds before visiting this as it can take time for all of the resources to come online. When it does, you should see "Data from API server route /api/foo: bar" in your browser.

Undeploy

./destroy.sh

Local Development

./dev.sh

Visit http://localhost:3000 to see the frontend server running!

Architecture Diagram

Coming soon!

Credits

Basic Terraform setup: https://github.com/bradford-hamilton/terraform-ecs-fargate