Add DNS debug

.gitlab-ci.yml

@@ -23,12 +23,6 @@ build-image:
   stage: build
   services:
     - name: docker:dind
-      entrypoint: ["env", "-u", "DOCKER_HOST"]
-      command: ["dockerd-entrypoint.sh"]
-  variables:
-    DOCKER_HOST: tcp://docker:2375
-    DOCKER_DRIVER: overlay2
-    DOCKER_TLS_CERTDIR: ""
   script:
     - source .env.update
     - if [ "$NEED_UPDATE" = false ]; then exit 0; fi
@@ -42,4 +36,5 @@ build-image:
     - echo $NEW_URL
     - sed -i "/wget/c$NEW_URL" docker/assets/download-package
     - cd docker
+    - cat /etc/resolv.conf
     - docker build -t git.halia.dev/athens-school/gitlab:testing .