I believe this is a new bug related to a recent lxd, kernel or docker update.

Ernesto has a container with us and is using docker inside it, and after upgrading the host, his containers are not working properlly. He is receiving the following error:

ernestrc@newton102 ~ $ docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
2db29710123e: Pull complete  
Digest: sha256:10d7d58d5ebd2a652f4d93fdd86da8f265f5318c6a73cc5b6a9798ff6d2b2e67
Status: Downloaded newer image for hello-world:latest
docker: Error response from daemon: cgroups: cannot find cgroup mount destination: unknown.
ERRO[0003] error waiting for container: context canceled

I was hoping that the change documented in FL-9717 would resolve this, but unfortunately after enabling these settings for openrc and rebooting, the host/container are still experiencing these issues.

I'm hoping to find some assistance to find a solution for this.