diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index d5935112b6f336a55331c48bda1d72e2c0118e97..5741684242954b0e9b23f4d2c40ca862f17a9570 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -19,11 +19,11 @@
 # along with this program. If not, see <https://www.gnu.org/licenses/>.
 
 variables:
-  CI_REGISTRY_IMAGE: $CI_REGISTRY/caosdb-pylib-testenv
+  CI_REGISTRY_IMAGE: $CI_REGISTRY/caosdb/caosdb-pylib/testenv:latest
   # When using dind, it's wise to use the overlayfs driver for
   # improved performance.
 
-image: $CI_REGISTRY_IMAGE:latest
+image: $CI_REGISTRY_IMAGE
 
 stages:
   - code_style
@@ -77,12 +77,12 @@ build-testenv:
       - schedules
   script: 
     - cd unittests/docker
-    - docker login -u indiscale -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
+    - docker login -u gitlab-ci-token -p $CI_JOB_TOKEN $CI_REGISTRY
       # use here general latest or specific branch latest...
-    - docker pull $CI_REGISTRY_IMAGE:latest || true
+    - docker pull $CI_REGISTRY_IMAGE|| true
     - docker build 
       --pull
       --build-arg COMMIT=$CI_COMMIT_SHORT_SHA
-      --cache-from $CI_REGISTRY_IMAGE:latest 
-      -t $CI_REGISTRY_IMAGE:latest .
-    - docker push $CI_REGISTRY_IMAGE:latest
+      --cache-from $CI_REGISTRY_IMAGE
+      -t $CI_REGISTRY_IMAGE .
+    - docker push $CI_REGISTRY_IMAGE
diff --git a/src/caosdb/connection/connection.py b/src/caosdb/connection/connection.py
index 3e2ec2cdba5e4cddce6557969c661ba82c1c16d2..6ee83d34c7779c6fa5d6ccb35d5758c0e91af13d 100644
--- a/src/caosdb/connection/connection.py
+++ b/src/caosdb/connection/connection.py
@@ -310,9 +310,12 @@ def configure_connection(**kwargs):
 
     Parameters
     ----------
-    implementation : CaosDBServerConnection
-        The class which implements the connection. (Default:
-        _DefaultCaosDBServerConnection)
+
+    username : str
+        Username for login; e.g. 'admin'.
+
+    password : str
+        Password for login if 'plain' is used as password_method.
 
     password_method : str
         The name of a submodule of caosdb.connection.authentication which
@@ -330,6 +333,10 @@ def configure_connection(**kwargs):
         Whether SSL certificate warnings should be ignored. Only use this for
         development purposes! (Default: False)
 
+    implementation : CaosDBServerConnection
+        The class which implements the connection. (Default:
+        _DefaultCaosDBServerConnection)
+
     Returns
     -------
     _Connection