Add automatic building for releases

.github/workflows/build-release.yml

@@ -0,0 +1,43 @@
+---
+name: 'Build release'
+on:
+  release:
+    types:
+      - published
+
+jobs:
+  build-and-publish-release:
+    name: 'Build release'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2 # Checking out the repo
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+      -
+        name: Login to DockerHub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      -
+        name: Login to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      -
+        name: Build and push
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          push: true
+          tags: |
+            tracksapp/tracks:${{ github.event.release.name }}
+            ghcr.io/tracksapp/tracks:${{ github.event.release.name }}
+
+#          platforms: linux/amd64,linux/arm64