try the build. and debug for debugging.

.drone.yml

@@ -28,16 +28,18 @@ steps:
   - name: build_docker_image
     image: plugins/docker
     settings:
-      registry: gittr.ch
+      registry: gittr.ch/java/labyrinth
       username: manuel
       password:
         from_secret: docker-token
-      repo: java/labyrinth-server
+      repo: java/labyrinth
       tags:
         - latest
       dockerfile: docker/Dockerfile
       auto_tag: true
       auto_tag_suffix: "-ci"
+      debug: true
+      launch_debug: true
     when:
       branch:
         - feature/docker