aws.yml

# This workflow will build and push a new container image to Amazon ECR,
# and then will deploy a new task definition to Amazon ECS.
# It is triggered manually via workflow_dispatch.
#
# To use this workflow, you will need to complete the following set-up steps:
#
# 1. Create an ECR repository to store your images.
#    For example: `aws ecr create-repository --repository-name my-ecr-repo --region us-east-2`.
#    Set the `AWS_REGION` and `ECR_REPOSITORY` variables in your GitHub repository/environment settings.
#
# 2. Create an ECS task definition, an ECS cluster, and an ECS service.
#    For example, follow the Getting Started guide on the ECS console:
#      https://us-east-2.console.aws.amazon.com/ecs/home?region=us-east-2#/firstRun
#    Set the `ECS_SERVICE` and `ECS_CLUSTER` variables in your GitHub repository/environment settings.
#
# 3. Store your ECS task definition as a JSON file in your repository.
#    The format should follow the output of `aws ecs register-task-definition --generate-cli-skeleton`.
#    Set the `ECS_TASK_DEFINITION` and `CONTAINER_NAME` variables in your GitHub repository/environment settings.
#
# 4. Configure GitHub OIDC for AWS and create an IAM role that GitHub Actions can assume.
#    Store the IAM role ARN in a GitHub Actions secret named `AWS_ROLE_ARN`.
#    See https://docs.github.com/en/actions/security-for-github-actions/security-hardening-your-deployments/configuring-openid-connect-in-amazon-web-services
#    for setup instructions and recommended IAM policies.

name: Deploy to Amazon ECS

on:
  workflow_dispatch:

env:
  AWS_REGION: ${{ vars.AWS_REGION }}
  ECR_REPOSITORY: ${{ vars.ECR_REPOSITORY }}
  ECS_SERVICE: ${{ vars.ECS_SERVICE }}
  ECS_CLUSTER: ${{ vars.ECS_CLUSTER }}
  ECS_TASK_DEFINITION: ${{ vars.ECS_TASK_DEFINITION }}
  CONTAINER_NAME: ${{ vars.CONTAINER_NAME }}

permissions:
  contents: read
  id-token: write

jobs:
  deploy:
    name: Deploy
    runs-on: ubuntu-latest
    environment: production

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Configure AWS credentials
        uses: aws-actions/configure-aws-credentials@v1
        with:
          role-to-assume: ${{ secrets.AWS_ROLE_ARN }}
          aws-region: ${{ env.AWS_REGION }}

      - name: Login to Amazon ECR
        id: login-ecr
        uses: aws-actions/amazon-ecr-login@v1

      - name: Build, tag, and push image to Amazon ECR
        id: build-image
        env:
          ECR_REGISTRY: ${{ steps.login-ecr.outputs.registry }}
          IMAGE_TAG: ${{ github.sha }}
        run: |
          # Build a docker container and
          # push it to ECR so that it can
          # be deployed to ECS.
          docker build -f backend/Dockerfile -t $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG backend
          docker push $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG
          echo "image=$ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG" >> $GITHUB_OUTPUT

      - name: Fill in the new image ID in the Amazon ECS task definition
        id: task-def
        uses: aws-actions/amazon-ecs-render-task-definition@v1
        with:
          task-definition: ${{ env.ECS_TASK_DEFINITION }}
          container-name: ${{ env.CONTAINER_NAME }}
          image: ${{ steps.build-image.outputs.image }}

      - name: Deploy Amazon ECS task definition
        uses: aws-actions/amazon-ecs-deploy-task-definition@v1
        with:
          task-definition: ${{ steps.task-def.outputs.task-definition }}
          service: ${{ env.ECS_SERVICE }}
          cluster: ${{ env.ECS_CLUSTER }}
          wait-for-service-stability: true