I have had no issues running docker inside of a Focal Fossa LXD container. Recently I tried to install docker inside a LXD container running Jammy Jellyfish. The docker service does not seem to start.
root@Search-Engine:~# docker ps
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
root@Search-Engine:~# systemctl status docker
Failed to dump process list for 'docker.service', ignoring: Input/output error
× docker.service - Docker Application Container Engine
Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Sun 2022-07-03 20:12:53 UTC; 20s ago
TriggeredBy: × docker.socket
Docs: https://docs.docker.com
Process: 420 ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock (code=exited, status=1/FAILURE)
Main PID: 420 (code=exited, status=1/FAILURE)
Tasks: 0
Memory: 160.0K
CGroup: /system.slice/docker.service
Jul 03 20:12:53 Search-Engine systemd[1]: docker.service: Scheduled restart job, restart counter is at 3.
Jul 03 20:12:53 Search-Engine systemd[1]: Stopped Docker Application Container Engine.
Jul 03 20:12:53 Search-Engine systemd[1]: docker.service: Start request repeated too quickly.
Jul 03 20:12:53 Search-Engine systemd[1]: docker.service: Failed with result 'exit-code'.
Jul 03 20:12:53 Search-Engine systemd[1]: Failed to start Docker Application Container Engine.```