Add wait for port

Author: lvarin

.github/workflows/checks.yaml

@@ -49,7 +49,14 @@ jobs:
       - name: Deploy app
         run: docker-compose up -d --build
       - name: Wait for app startup
-        run: sleep 20
+        run: |
+          curl localhost:8080 -so /dev/null
+          while [[  $? -ne 0 ]]
+          do
+            echo "Waiting for the service in port 8080 to be up ..."
+            sleep 5
+            curl localhost:8080 -so /dev/null
+          done
       - name: Run integration tests
         shell: bash
         run: pytest tests/test_integration