docker-build.yml

name: Build and Push Docker Image

on:
  push:
    branches:
      - main

env:
  DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
  DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
  EC2_HOST: ${{ secrets.EC2_HOST }}
  EC2_KEY: ${{ secrets.EC2_KEY }}

jobs:
  deploy-backend:
    runs-on: ubuntu-latest

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

      - name: Debug environment variables
        run: |
          echo "DOCKER_USERNAME=${DOCKER_USERNAME}"
          echo "DOCKER_PASSWORD=${DOCKER_PASSWORD}"
          echo "EC2_HOST=${EC2_HOST}"
          echo "EC2_KEY=${EC2_KEY}"

      - name: Decode and save EC2 private key
        run: |
          echo "${{ secrets.EC2_KEY }}" | base64 --decode > ec2-private-key.pem
          chmod 600 ec2-private-key.pem

      - name: SSH into EC2 instance and deploy
        run: |
          ssh -o StrictHostKeyChecking=no -i ./ec2-private-key.pem ec2-user@${EC2_HOST} << 'EOF'
          cd /home/ec2-user/fastapi-todos

          # Pull latest code
          git pull origin main

          # Build Docker image
          sudo docker build -t fastapi-to-dos .

          # Stop and remove all Docker containers
          sudo docker stop $(sudo docker ps -aq) || true
          sudo docker rm $(sudo docker ps -aq) || true

          # Run new Docker container
          sudo docker run -d -p 8000:8000 fastapi-to-dos
          EOF