SOLVED collectd warning in journal log
Noticed this in my journal log. Not sure if it's important or not.
Aug 11 22:26:22 cloudron.xxx collectd: WARNING: Error loading config file: .dockercfg: $HOME is not defined
This is warning from docker. https://github.com/docker/cli/pull/2934 . It's removed in the next releases of docker. Safe to ignore per https://github.com/moby/moby/issues/41890#issuecomment-762243953.
Thanks for the quick response!