DockerHub deployment (*)

if secrets.DOCKERHUB_USERNAME and secrets.DOCKERHUB_PASSWORD are non-empty

.github/workflows/build-and-test.yaml

@@ -113,12 +113,14 @@ jobs:
       name: Environment
       run : |
         echo  IMAGE=$(echo ${{ env.IMAGE }} | tr '[:upper:]' '[:lower:]')  >>$GITHUB_ENV
+        echo  DOCKERHUB_IMAGE=$([ "${{ secrets.DOCKERHUB_USERNAME }}" != '' ] && [ "${{ secrets.DOCKERHUB_PASSWORD }}" != "" ] && echo "$IMAGE")  >>$GITHUB_ENV
     -
       name: Docker meta
       id: meta
       uses: docker/metadata-action@v3
       with:
         images: |
+          ${{ env.DOCKERHUB_IMAGE }}
           ghcr.io/${{ env.IMAGE }}
         tags: |
           type=raw,value=latest,enable=${{ github.ref == format('refs/heads/{0}', github.event.repository.default_branch) }}
@@ -131,6 +133,13 @@ jobs:
     -
       name: Set up Docker Buildx
       uses: docker/setup-buildx-action@v1
+    -
+      name: Login to DockerHub
+      uses: docker/login-action@v1
+      if: ${{ env.DOCKERHUB_IMAGE != '' }}
+      with:
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_PASSWORD }}
     -
       name: Login to GHCR
       uses: docker/login-action@v1