.github/workflows/docker.yml

name: Docker Build

on:
  push:
    branches: [ main, dev ]
    tags:
      - 'v*'
  pull_request:
    branches: [ main ]
  workflow_dispatch:

env:
  GHCR_REGISTRY: ghcr.io
  DOCKER_REGISTRY: docker.io
  IMAGE_NAME: ${{ github.repository }}
  DOCKER_HUB_IMAGE: mskmind/mosaic

jobs:
  build:
    name: Build Docker Image
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

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

    - name: Set up SSH key for private repos
      uses: webfactory/ssh-agent@v0.9.0
      with:
        ssh-private-key: ${{ secrets.SSH_PRIVATE_KEY }}

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

    - name: Log in to GitHub Container Registry
      if: github.event_name != 'pull_request'
      uses: docker/login-action@v3
      with:
        registry: ${{ env.GHCR_REGISTRY }}
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}

    - name: Log in to Docker Hub
      if: github.event_name != 'pull_request' && github.ref == 'refs/heads/main'
      uses: docker/login-action@v3
      with:
        registry: ${{ env.DOCKER_REGISTRY }}
        username: ${{ secrets.DOCKER_HUB_USERNAME }}
        password: ${{ secrets.DOCKER_HUB_TOKEN }}

    - name: Extract metadata for GHCR
      id: meta-ghcr
      uses: docker/metadata-action@v5
      with:
        images: ${{ env.GHCR_REGISTRY }}/${{ env.IMAGE_NAME }}
        tags: |
          type=ref,event=branch
          type=ref,event=pr
          type=semver,pattern={{version}}
          type=semver,pattern={{major}}.{{minor}}
          type=sha,prefix=sha-

    - name: Extract metadata for Docker Hub
      id: meta-dockerhub
      if: github.ref == 'refs/heads/main'
      uses: docker/metadata-action@v5
      with:
        images: ${{ env.DOCKER_REGISTRY }}/${{ env.DOCKER_HUB_IMAGE }}
        tags: |
          type=raw,value=latest
          type=semver,pattern={{version}}
          type=semver,pattern={{major}}.{{minor}}
          type=sha

    - name: Build and push to GHCR
      uses: docker/build-push-action@v5
      with:
        context: .
        push: ${{ github.event_name != 'pull_request' }}
        tags: ${{ steps.meta-ghcr.outputs.tags }}
        labels: ${{ steps.meta-ghcr.outputs.labels }}
        ssh: default=${{ env.SSH_AUTH_SOCK }}
        secrets: |
          GH_TOKEN=${{ secrets.GH_PAT || secrets.GITHUB_TOKEN }}
        cache-from: type=gha
        cache-to: type=gha,mode=max

    - name: Build and push to Docker Hub
      if: github.event_name != 'pull_request' && github.ref == 'refs/heads/main'
      uses: docker/build-push-action@v5
      with:
        context: .
        push: true
        tags: ${{ steps.meta-dockerhub.outputs.tags }}
        labels: ${{ steps.meta-dockerhub.outputs.labels }}
        ssh: default=${{ env.SSH_AUTH_SOCK }}
        secrets: |
          GH_TOKEN=${{ secrets.GH_PAT || secrets.GITHUB_TOKEN }}
        cache-from: type=gha

    - name: Docker Summary
      run: |
        echo "## Docker Build :whale:" >> $GITHUB_STEP_SUMMARY
        echo "" >> $GITHUB_STEP_SUMMARY
        echo "### GitHub Container Registry" >> $GITHUB_STEP_SUMMARY
        echo "Registry: ${{ env.GHCR_REGISTRY }}" >> $GITHUB_STEP_SUMMARY
        echo "Image: ${{ env.IMAGE_NAME }}" >> $GITHUB_STEP_SUMMARY
        echo "" >> $GITHUB_STEP_SUMMARY
        echo "**Tags:**" >> $GITHUB_STEP_SUMMARY
        echo '```' >> $GITHUB_STEP_SUMMARY
        echo "${{ steps.meta-ghcr.outputs.tags }}" >> $GITHUB_STEP_SUMMARY
        echo '```' >> $GITHUB_STEP_SUMMARY
        if [ "${{ github.ref }}" == "refs/heads/main" ]; then
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "### Docker Hub" >> $GITHUB_STEP_SUMMARY
          echo "Registry: ${{ env.DOCKER_REGISTRY }}" >> $GITHUB_STEP_SUMMARY
          echo "Image: ${{ env.DOCKER_HUB_IMAGE }}" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "**Tags:**" >> $GITHUB_STEP_SUMMARY
          echo '```' >> $GITHUB_STEP_SUMMARY
          echo "${{ steps.meta-dockerhub.outputs.tags }}" >> $GITHUB_STEP_SUMMARY
          echo '```' >> $GITHUB_STEP_SUMMARY
        fi