create both tag-specific and "latest" docker image, per git tag

Author: chelmertz

.github/workflows/deploy-image.yml

@@ -30,7 +30,10 @@ jobs:
 
       - name: Build and push docker image
         id: push
-        run: ./scripts/build-docker.sh -t "${{ github.ref_name }}" -p
+        run: |
+          ./scripts/build-docker.sh -t "${{ github.ref_name }}" -p
+          docker tag "${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.ref_name }}" "${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest"
+          docker push "${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest"
 
       - name: Get image digest
         id: digest