I’ve noticed that in docker hub https://hub.docker.com/r/fleetdm/fleet/tags lots of strange tags have appeared. What are all those tags about? I mean the tags with random letters and digits. Usually the tags include version, but not random symbols
Gavin's got that right. There are also images pushed for some Fleet team member pull requests and patch branches. This allows us to do testing on the containers and also ask users and customers to help with testing.
For production, stick with the version-tagged images.