This post is a followup to an earlier blog bost regarding setting up a docker-swarm cluster with ceph.
I’ve been running this cluster for a while now quite happily however since setting it up, a new version of ceph has been released - nautilus - so now it’s time for some upgrades.
I’ve mostly followed https://docs.ceph.com/docs/master/releases/nautilus/#upgrading-from-mimic-or-luminous but adapted it for the fact we’re running everything in docker. I recommend that you have a read though this yourself first to have an idea of what we are doing and why.
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