add possibility to log to stdout

[sebastian-philipp]

Hi,

In case you're starting tcmu-runner containerized, having a possibility to log to stdout would be great. The idea is to let the container runtime deal with the logging, like directly forwarding it to journald.

This is the downstream issue: https://tracker.ceph.com/issues/47480

[lxbsz]

The tcmu-runner has already logged some logs to the syslog.

[sebastian-philipp]

This certainly reduces the priority of this issue here 🙂 . But I think this is still valid. Having an additional log containing some other logs is irritating for users.

[sebastian-philipp]

workaround: ceph/ceph#43319