[jmarneweck]

When I first used Gitlab on SmartOS it was a pain to upgrade manually.

I more recently used Gitlab on Ubuntu using their omnibus package for Ubuntu and the upgraded over multiple versions to get onto a later version of Gitlab. The upgrade process was a lot smoother (no fighting to build gems on SmartOS and patching all over the show to get gems and other dependencies to compile).

I also did a MySQL to Postgresql migration. You have a bit of downtime with the process which chef sorts things out post upgrade of the omnibus package. I did turn the unicorns and disabled ssh logins while I was upgrading the omnibus package just incase something went wrong during the upgrade.