Update docker image publishing action

.github/workflows/docker-image.yml

@@ -1,18 +1,34 @@
-name: Docker Image CI
-
+#See: https://docs.github.com/en/actions/publishing-packages/publishing-docker-images
+name: Create and publish a Docker image
 on:
-  push:
-    branches: [ "main" ]
-  pull_request:
-    branches: [ "main" ]
-
+  release:
+    types: [ published ]
 jobs:
-
   build:
-
     runs-on: ubuntu-latest
-
+    permissions:
+      contents: read
+      packages: write
+    env:
+      REGISTRY: ghcr.io
+      IMAGE_NAME: ${{ github.repository }}
     steps:
-    - uses: actions/checkout@v3
-    - name: Build the Docker image
-      run: docker build . --file Dockerfile --tag pvannierop/radar-data-dashboard-backend:$(date +%s)
+      - uses: actions/checkout@v3
+      - name: Log in to the Container registry
+        uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@9ec57ed1fcdbf14dcef7dfbe97b2010124a938b7
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+      - name: Build and push Docker image
+        uses: docker/build-push-action@f2a1d5e99d037542a71f64918e516c093c6f3fc4
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}