Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -13,6 +13,7 @@
 variables:
   CONTAINER_TEST_IMAGE: $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG
   CONTAINER_RELEASE_IMAGE: $CI_REGISTRY_IMAGE:latest 
+  BHT_REGISTRY: registry.bht-berlin.de:443
 
 stages:
     - build
@@ -26,7 +27,7 @@ docker-build:
   services:
     - docker:dind
   before_script:
-    - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY
+    - docker login -u "$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)
   script: