Also hit here on a near-vanilla 18.04 install; snap docker auto-updated and fell down, and stayed down until manually reloaded.
$ snap changes ID Status Spawn Ready Summary 10 Done yesterday at 23:06 EST yesterday at 23:06 EST Auto-refresh snap "docker" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1852720 Title: docker snap suddenly installed by itself To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/docker.io/+bug/1852720/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs