deploy-dev.yml

name: Deploy API to AWS
on:
  pull_request:
    branches:
      - master
    types:
      - closed

jobs:
  deploy-api:
    if: github.event.pull_request.merged
    runs-on: ubuntu-latest
    env:
      CODE_BUCKET: ${{vars.CODE_BUCKET}}
      REGION: ${{ vars.AWS_REGION }}
      EC2_INSTANCE_ID: ${{ vars.EC2_INSTANCE_ID }}

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

      - name: Cache api files
        id: cache-api
        uses: actions/cache@v4
        env: 
          cache-name: cache-api-files
        with:
          path: .
          key: ${{ hashFiles('package*.json') }}-${{ hashFiles('src/**/*') }}

      - if: ${{ steps.cache-api.outputs.cache-hit == 'true' }}
        name: Check api changes
        continue-on-error: true
        run: echo 'No api changes found. Skip api build and deployment.'

      - if: ${{ steps.cache-api.outputs.cache-hit != 'true' }}
        name: Build 
        run: |
          npm ci
          npm run build

      - if: ${{ steps.cache-api.outputs.cache-hit != 'true' }}
        name: Configure AWS Credentials
        uses: aws-actions/configure-aws-credentials@v4
        with: 
          aws-access-key-id: ${{secrets.AWS_ACCESS_KEY_ID}}
          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
          aws-region: ${{vars.AWS_REGION}}

      - if: ${{ steps.cache-api.outputs.cache-hit != 'true' }}
        name: Zip application
        run: zip -r app.zip . -x ".git/*" ".github/*" "infra/*" "docker/*" "test/*" --quiet

      - if: ${{ steps.cache-api.outputs.cache-hit != 'true' }}
        name: Upload to S3
        run: |
          FILE_NAME="app-$(date +%Y-%m-%d_%H:%M)-${{ github.sha }}.zip"
          aws s3 cp app.zip s3://$CODE_BUCKET/$FILE_NAME
          echo "FILE_NAME=$FILE_NAME" >> $GITHUB_ENV

      - if: ${{ steps.cache-api.outputs.cache-hit != 'true' }}
        name: Update EC2 from S3 and restart docker-compose
        run: |
          # Send SSM command to download code and build artifact, restart docker-compose, and run migrations
          aws ssm send-command \
            --document-name "AWS-RunShellScript" \
            --targets "Key=instanceids,Values=$EC2_INSTANCE_ID" \
            --comment "Deploy $GITHUB_SHA" \
            --parameters commands='[
              "set -e",
              "cd /var/www/app",
              "aws s3 cp s3://'"$CODE_BUCKET"'/'"$FILE_NAME"' app.zip --region '"$REGION"'",
              "sudo -u ec2-user unzip -qo app.zip",
              "sleep 15",
              "sudo -u ec2-user /usr/local/bin/docker-compose -f docker-compose-dev.yml restart api-run postgres redis",
              "sleep 15",
              "sudo -u ec2-user /usr/local/bin/docker-compose -f docker-compose-dev.yml exec -T api-run npm run migration:run"
            ]' \
            --region "$REGION" \
            --query "Command.CommandId" \
            --output text > command_id.txt

          COMMAND_ID=$(cat command_id.txt)
          echo "SSM CommandId: $COMMAND_ID"