Troubleshoot VirtualBox

This section includes troubleshooting some of the common issues I faced when running Gitlab on K8S.

What went wrong

Running Gitlab on k8s cluster with storage class nfs

PostgreSQL & Redis internal instances failed to connect to socket (acquire socket lock)

Web server failed to also acquire socket lock.

How to solve the issue

1. Make sure no_root_squash applied to NFS folder
2. Run the pod in privileged = true security context
3. PostgreSQL & Redis moved to run in their own external instances
   1. Configured gitlab.rb to point to the new instances using their k8s dns names (gitlab-db.NAMESPACE.svc.cluster.local)
   2. Apply the same for Redis
4. Webserver:
   1. Because the file was created by a user called git
   2. web_server['username'] must be changed to git instead of gitlab-www
   3. Run gitlab-ctl reconfigure from the pod for changes to take affect