deploy.yml

name: Build and Deploy to Docker Hub

on:
  push:
    branches:
      - main

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    steps:
    - name: Check Out Repo
      uses: actions/checkout@v2
    
    - name: Determine Changed Directories
      id: changes
      uses: tj-actions/changed-files@v34
      with:
        files: |
          apps/**/*
    
    - name: Log in to Docker Hub
      uses: docker/login-action@v1
      with:
        username: ${{ secrets.DOCKER_USERNAME }}
        password: ${{ secrets.DOCKER_PASSWORD }}

    - name: Build and Push Docker image
      run: |
        for dir in $(echo "${{ steps.changes.outputs.modified_files }}" | tr ',' '\n' | sed 's|^\([^/]*\)/\([^/]*\).*|\1/\2|' | sort | uniq); do
          if [[ $dir == apps/* ]]; then
            app_name=$(basename $dir)
            echo "Building and pushing $app_name"
            docker-compose build $app_name
            docker-compose push $app_name
          fi
        done

    - name: Deploy to EC2
      uses: appleboy/ssh-action@master
      env:
        DB_URL: ${{ secrets.DB_URL }}
      with:
        host: ${{ secrets.SSH_HOST }}
        username: ${{ secrets.SSH_USERNAME }}
        key: ${{ secrets.SSH_KEY }}
        script: |
          CHANGED_APPS=$(echo "${{ steps.changes.outputs.modified_files }}" | tr ',' '\n' | sed 's|^\([^/]*\)/\([^/]*\).*|\1/\2|' | sort | uniq | grep '^apps/' | xargs -n 1 basename)
          cd /home/ubuntu/saas-apps
          for app in $CHANGED_APPS; do
            echo "Deploying $app"
            cd /home/ubuntu/saas-apps && sudo docker-compose pull $app
            cd /home/ubuntu/saas-apps && sudo docker-compose rm -f $app
            cd /home/ubuntu/saas-apps && sudo docker-compose up -d $app
          done