docker-build.yml

name: Docker Build and Push

on:
  push:
    branches:
      - 'main'  # Only trigger push events on main
    tags: [ "v*" ]
  pull_request:  # Keep PR triggers for all branches
  workflow_dispatch:

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  docker:
    # Skip this job if it's a push event on a non-main branch
    if: github.event_name != 'push' || github.ref == 'refs/heads/main'
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

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

      # Generate Cargo.lock if it doesn't exist
      - name: Generate Cargo.lock
        run: |
          if [ ! -f "Cargo.lock" ]; then
            cargo generate-lockfile
          fi

      - name: Extract version from Cargo.toml
        id: version
        run: |
          VERSION=$(awk -F '"' '/^version = / {print $2}' Cargo.toml)
          echo "CARGO_VERSION=${VERSION}" >> $GITHUB_ENV
          echo "Version found: ${VERSION}"

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

      # Always build to verify Dockerfile, but push only on main
      - name: Build Docker image (non-main branch)
        if: github.ref != 'refs/heads/main'
        uses: docker/build-push-action@v5
        with:
          context: .
          push: false
          platforms: linux/amd64,linux/arm64
          cache-from: type=gha
          cache-to: type=gha,mode=max

      # Main branch handling - build and push
      - name: Log in to GitHub Container Registry
        if: github.ref == 'refs/heads/main'
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata for GHCR
        if: github.ref == 'refs/heads/main'
        id: meta-ghcr
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=raw,value=latest
            type=raw,value=${{ env.CARGO_VERSION }}

      - name: Build and push to GitHub Container Registry
        if: github.ref == 'refs/heads/main'
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          tags: ${{ steps.meta-ghcr.outputs.tags }}
          labels: ${{ steps.meta-ghcr.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          platforms: linux/amd64,linux/arm64

      - name: Login to Docker Hub
        if: github.ref == 'refs/heads/main'
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Build and push to Docker Hub
        if: github.ref == 'refs/heads/main'
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          tags: |
            magicapi1/magicapi-ai-gateway:latest
            magicapi1/magicapi-ai-gateway:${{ env.CARGO_VERSION }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
          platforms: linux/amd64