Master GitHub Container Registry

# Build your Docker image
docker build -t my-app:latest .

# Tag for GHCR
docker tag my-app:latest ghcr.io/your-username/my-app:latest

# Login to GHCR
echo "YOUR_PAT" | docker login ghcr.io -u YOUR_USERNAME --password-stdin

# Push to GHCR
docker push ghcr.io/your-username/my-app:latest

# Pull from GHCR
docker pull ghcr.io/your-username/my-app:latest

# Run the container
docker run -p 8080:80 ghcr.io/your-username/my-app:latest

# 1️⃣ Login to Railway
railway login

# 2️⃣ Link your GitHub repository
railway link

# 3️⃣ Add your GHCR image in Railway settings
# (In Dashboard → Deployments → New Deployment → Deploy from Docker Image)
# Example:
ghcr.io/your-username/my-app:latest

# 4️⃣ Set PORT (important for FastAPI, Flask etc.)
railway variables set PORT=8000

# 5️⃣ Deploy the container
railway up

# ✅ Once deployed, Railway provides a live link such as:
https://my-app.up.railway.app

# 🎉 You’ve successfully deployed a GHCR container on Railway Cloud!

name: Build and Push to GHCR

on:
  push:
    branches: [ main ]

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

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

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Log in to GHCR
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push
        uses: docker/build-push-action@v5
        with:
          push: true
          tags: ghcr.io/${{ github.repository_owner }}/my-app:latest