Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -26,6 +26,10 @@ docker-build:
   stage: build
   before_script:
     - docker info
+    - df
+    - cat /etc/resolv.conf
+    - cat /etc/hosts
+
   #  - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" "$BHT_REGISTRY"
   # Default branch leaves tag empty (= latest tag)
   # All other branches are tagged with the escaped branch name (commit ref slug)