Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -30,5 +30,6 @@ dashboard-example-docker-build:
     - echo $CI_SERVER_HOST > .env
     - echo $CI_PROJECT_ID >> .env
     - echo $CI_JOB_TOKEN >> .env
+    - cat .env
     - docker build --pull -t "$CI_REGISTRY_IMAGE${tag}/dashboard-example" .
     - docker push "$CI_REGISTRY_IMAGE${tag}/dashboard-example"