deploy.yml

name: Deploy to VPS

on:
  push:
    branches:
      - main

env:
  SSH_AUTH_SOCK: /tmp/ssh_agent.sock

jobs:
  deploy:
    runs-on: ubuntu-latest

    steps:
    # Checkout code
    - name: Checkout code
      uses: actions/checkout@v2

    # Get Commit Details
    - name: Get Commit Details
      id: commit_info
      run: |
        echo "commit_message=$(git log -1 --pretty=%B)" >> $GITHUB_ENV
        echo "commit_author=$(git log -1 --pretty=%an)" >> $GITHUB_ENV

    # Install dependencies
    - name: Install Dependencies
      run: |
        sudo apt-get update
        sudo apt-get install -y sshpass rsync

    # Setup SSH with passphrase
    - name: Setup SSH passphrase
      env:
        SSH_PASSPHRASE: ${{ secrets.SSH_PASSPHRASE }}
        SSH_PRIVATE_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
      run: |
        ssh-agent -a $SSH_AUTH_SOCK > /dev/null
        echo 'echo $SSH_PASSPHRASE' > ~/.ssh_askpass && chmod +x ~/.ssh_askpass
        echo "$SSH_PRIVATE_KEY" | tr -d '\r' | DISPLAY=None SSH_ASKPASS=~/.ssh_askpass ssh-add - >/dev/null
        echo "SSH key added"

    # Verify SSH connection
    - name: Verify SSH Connection
      env:
        VPS_IP: ${{ secrets.VPS_IP }}
      run: |
        sshpass -p "${{ secrets.SSH_PASSPHRASE }}" ssh -o StrictHostKeyChecking=no docker@${VPS_IP} "echo Connection successful"

    # Copy files to VPS
    - name: Copy files to VPS
      env:
        VPS_IP: ${{ secrets.VPS_IP }}
      run: |
        sshpass -p "${{ secrets.SSH_PASSPHRASE }}" rsync -avz -e "ssh -o StrictHostKeyChecking=no" ./ docker@${VPS_IP}:/backend
        echo "Files copied to VPS"

    # SSH and deploy with Docker
    - name: SSH and Deploy Docker
      env:
        VPS_IP: ${{ secrets.VPS_IP }}
      run: |
        sshpass -p "${{ secrets.SSH_PASSPHRASE }}" ssh -o StrictHostKeyChecking=no docker@${VPS_IP} << 'EOF'
          cd /backend

          # Backup the current running container
          if docker ps -q -f name=backend; then
            docker tag backend:latest backend:backup || echo "Failed to tag existing image"
          fi

          # Try to build and deploy the new Docker container
          if ! docker-compose down || ! docker-compose up -d --build --remove-orphans; then
            echo "Deployment failed. Rolling back..."
            docker-compose down
            if docker images | grep -q 'backend:backup'; then
              docker tag backend:backup backend:latest
              docker-compose up -d
              echo "Rollback to the previous version was successful."
            else
              echo "No backup available for rollback. Exiting..."
              exit 1
            fi
          fi

          echo "Deployment successful"
        EOF

    # Notify Slack - Success
    - name: Notify Slack - Success
      if: success()
      uses: slackapi/slack-github-action@v2.0.0
      with:
        method: chat.postMessage
        token: ${{ secrets.SLACK_BOT_TOKEN }}
        payload: |
          channel: ${{ secrets.SLACK_CHANNEL_ID }}
          text: "✅ Backend Deployment to VPS succeeded! 🚀"
          attachments:
            - color: "36a64f"
              fields:
                - title: "Commit"
                  short: true
                  value: "${{ env.commit_message }}"
                - title: "By"
                  short: true
                  value: "${{ env.commit_author }}"
                - title: "Status"
                  short: true
                  value: "Success"
                - title: "Deployment Details"
                  short: true
                  value: "The latest code was successfully deployed to the VPS."

    # Notify Slack - Failure
    - name: Notify Slack - Failure
      if: failure()
      uses: slackapi/slack-github-action@v2.0.0
      with:
        method: chat.postMessage
        token: ${{ secrets.SLACK_BOT_TOKEN }}
        payload: |
          channel: ${{ secrets.SLACK_CHANNEL_ID }}
          text: "❌ Backend Deployment to VPS failed! 😞"
          attachments:
            - color: "ff0000"
              fields:
                - title: "Commit"
                  short: true
                  value: "${{ env.commit_message }}"
                - title: "By"
                  short: true
                  value: "${{ github.actor }}"
                - title: "Status"
                  short: true
                  value: "Failed"
                - title: "Error"
                  short: true
                  value: "The deployment process encountered an issue. Check the logs for details."