docker-publish.yaml

name: Build and Push Docker Image

on:
  release:
    types: [published]
  workflow_dispatch:
    inputs:
      version:
        description: 'Version tag for the Docker image'
        required: true
        default: 'latest'

jobs:
  build-and-push:
    runs-on: ubuntu-latest

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

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

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

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

      - name: Log in to DockerHub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USER }}
          password: ${{ secrets.DOCKERHUB_AT }}

      - name: Determine version
        id: use_version
        run: |
          # If the workflow is triggered by a release, use the release tag
          if [ "${GITHUB_EVENT_NAME}" == "release" ]; then
            VERSION="${GITHUB_REF#refs/tags/}"
          else
            VERSION="${{ github.event.inputs.version }}"
          fi
          VERSION_LOWER=$(echo $VERSION | tr '[:upper:]' '[:lower:]')
          REPO_NAME=$(echo ${{ github.repository }} | tr '[:upper:]' '[:lower:]')  # Use full lowercase repo name for both GHCR and DockerHub
          echo "VERSION=$VERSION_LOWER" >> $GITHUB_ENV
          echo "REPO_NAME=$REPO_NAME" >> $GITHUB_ENV

      - name: Retrieve previous release version
        id: previous_version
        run: |
          PREV_VERSION=$(gh release list --limit 2 --json tagName --jq '.[1].tagName' || echo "")
          if [ -z "$PREV_VERSION" ]; then
            echo "No previous version found, skipping retagging."
            echo "PREV_VERSION=" >> $GITHUB_ENV
          else
            echo "Previous version: $PREV_VERSION"
            echo "PREV_VERSION=$PREV_VERSION" >> $GITHUB_ENV
          fi
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and Push Docker Image (GitHub Packages)
        run: |
          docker buildx build --platform linux/amd64,linux/arm64 \
            --tag ghcr.io/${{ env.REPO_NAME }}:${{ env.VERSION }} \
            --tag ghcr.io/${{ env.REPO_NAME }}:latest \
            --push .

      - name: Build and Push Docker Image (DockerHub)
        run: |
          docker buildx build --platform linux/amd64,linux/arm64 \
            --tag ${{ env.REPO_NAME }}:${{ env.VERSION }} \
            --tag ${{ env.REPO_NAME }}:latest \
            --push .

      - name: Retag and Push Previous Version (DockerHub)
        if: env.PREV_VERSION != ''
        run: |
          docker pull ${{ env.REPO_NAME }}:latest
          docker tag ${{ env.REPO_NAME }}:latest \
            ${{ env.REPO_NAME }}:${{ env.PREV_VERSION }}
          docker push ${{ env.REPO_NAME }}:${{ env.PREV_VERSION }}