Publish docker images in ghcr.io

Publish docker images for arm64, amd64 and arm64/v8 in ghcr.io.

.github/workflows/publish_docker.yaml

@@ -0,0 +1,46 @@
+name: docker-publish-ghcr
+
+on:
+  workflow_dispatch:
+  push:
+  pull_request:
+
+permissions:
+  packages: write
+
+jobs:
+  docker_build_and_publish:
+    runs-on: ubuntu-22.04
+    strategy:
+      fail-fast: false
+      matrix:
+        arch: [linux/amd64, linux/arm64, linux/arm64/v8] #, linux/386, linux/arm/v5, linux/arm/v7, linux/mips64le, linux/ppc64le, linux/s390x]
+    steps:
+      - name: "Checkout turnilo"
+        uses: actions/checkout@v4
+        with:
+          path: turnilo
+          fetch-depth: 0
+          fetch-tags: 1
+
+      - name: "Set up QEMU"
+        # Add support for more platforms with QEMU (optional)
+        # https://github.com/docker/setup-qemu-action
+        uses: docker/setup-qemu-action@v3
+
+      - name: "Set up Docker buildx"
+        uses: docker/setup-buildx-action@v3
+
+      - name: "Login to GitHub Container Registry (ghcr.io)"
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{github.actor}}
+          password: ${{secrets.GITHUB_TOKEN}}
+
+      - name: "Build and push to ghcr"
+        run: |
+          #Cross-build
+          cd turnilo
+          export TAG=$(git describe HEAD | sed 's/-.*$//g')
+          docker buildx build --platform ${{ matrix.arch }} --push -f Dockerfile . --tag ghcr.io/${GITHUB_REPOSITORY}:${TAG}