From time to time we need to upgrade our Jenkins installation. Usually this requires two restarts due to the fact that first Jenkins core needs to be updated and later on the huge amount of plugins. Of course you can update the plugins first and then core, but more often than not some plugins need a newer core version and therefore you don’t get the latest updates without upgrading core first.
To avoid starting Jobs starting jobs after the core upgrade we wanted to start Jenkins in…

As announced in the previous post, I rebooted the blog in order to write about our experiences with OpenStack and Ceph. For the first topic I picked the Ceph cache tiering, as we have recently struggled quite a bit to keep it up and running ;)

A few weeks ago I had to prepare our Jenkins for an internal cloud update. The update would take place over the weekend, so it had to be down on Saturday, 8 a.m. I didn’t want to wait until everyone was finished on Friday evening, so I had a look for an automatic shutdown procedure.