conditional to docker hub.

.github/workflows/publish.yml

@@ -79,11 +79,35 @@ jobs:
         with:
           args: 'Adempiere-Vue.zip'
 
+  # Check secrets to push image in docker hub registry
+  check-docker-secrets:
+    name: Check if docker hub registry information was set on secrets
+    needs:
+      - build-app
+    runs-on: ubuntu-latest
+    outputs:
+      is_have_secrets: ${{ steps.check_secret_job.outputs.have_secrets }}
+    steps:
+      - id: check_secret_job
+        run: |
+          if [[ "${{ secrets.DOCKER_REPO_FRONTEND }}" != "" && \
+                "${{ secrets.DOCKER_USERNAME }}" != "" && \
+                "${{ secrets.DOCKER_TOKEN }}" != "" ]]; \
+          then
+            echo "Secrets to use a container registry were configured in the repo"
+            echo "::set-output name=is_have_secrets::true"
+          else
+            echo "Secrets to use a container registry were not configured in the repo"
+            echo "::set-output name=is_have_secrets::false"
+          fi
+
   # Publish docker image in Docker Hub registry to application
   push-imame-dhr:
     name: Push Docker image to Docker Hub
     needs:
-      - build-app
+      - check-docker-secrets
+    # Skip step based on secret
+    if: needs.check-docker-secrets.outputs.is_have_secrets == 'true'
     runs-on: ubuntu-latest
     steps:
       - name: Check out the repo