Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -20,6 +20,9 @@ variables:
   # Provides default values for the variables in your docker-compose.yml.
   EUSER: "1000"
   EGID: "1000"
+  MOODLE_URL: "http://docker:8080"
+  BACKEND_URL: "http://docker:8081"
+
   # This is the URL Moodle's entrypoint script will use for its wwwroot.
   MOODLE_WWWROOT: "http://docker:8080"