When using a custom docker service with multiple ports exposed, in build log we get ``` Service xxx didn't respond in timely maner: 30s Consider modifying wait_for_services_timeout. ``` Actually the services are up, and there may be something wrong with the script in the waiting container. log for container `gitlab/gitlab-runner:service` shows like ``` $ docker logs f0836ec3f98a waiting for TCP connection to 172.17.0.136 172.17.0.136 172.17.0.136:465 587 25 ```