ci: push Docker images for versions with tag

Author: striezel

.github/workflows/docker.yml

@@ -8,6 +8,8 @@ jobs:
     steps:
       # Checks-out the repository under $GITHUB_WORKSPACE.
       - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
       - name: Build Dockerfile
         run: docker build . -t plotly
       - name: Start Docker container
@@ -23,10 +25,27 @@ jobs:
           curl -X POST -i 'http://[::1]:3000/' --data '{ "x": ["2013-10-04 22:23:00", "2013-11-04 22:23:00", "2013-12-04 22:23:00"], "y": [1, 3, 6], "type": "scatter" }'
           echo -e "\nStopping container ..."
           docker stop -t 1 "$CONTAINER_ID"
-      - name: Push Docker image to registry
+      - name: Push Docker image (edge) to registry
         run: |
           IMAGE_NAME=ghcr.io/${{ github.repository_owner }}/plotly-node-export-server/plotly-node-export-server:edge
           docker tag plotly "$IMAGE_NAME"
           echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
           docker push "$IMAGE_NAME"
           docker logout ghcr.io
+      - name: Push Docker image (versioned tag) to registry
+        run: |
+          VERSION=$(git describe --always)
+          echo Version is $VERSION.
+          if [[ "$VERSION" =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]]
+          then
+            echo "Version seems to be a new tag."
+          else
+            echo "Version is not a new tag, exiting here."
+            exit 0
+          fi
+          TAG=$(echo "$VERSION" | cut --characters=2- )
+          IMAGE_NAME=ghcr.io/${{ github.repository_owner }}/plotly-node-export-server/plotly-node-export-server:$TAG
+          docker tag plotly "$IMAGE_NAME"
+          echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
+          docker push "$IMAGE_NAME"
+          docker logout ghcr.io