core: add restore mon quorum in go

[subhamkrai]

core: add restore mon quorum in go

this commits add a go command for
restore the mon quorum from single
good mon. In the background we,
scale down the operator first, and run some
ceph commands like remove bad mans from
mon map, extracting/injecting monmap.
And, in the end, we scale up the operator which
bring back the mon quorum.

Signed-off-by: subhamkrai srai@redhat.com

[subhamkrai]

found one issue working on the fix.

[travisn]

Testing locally, I saw that the restored mon pod has the sleep infinity command instead of having the original ceph-mon command restored. I wouldn't expect the command to be modified on the mon. It should have just been modified on the mon debug pod. If you fix this command when starting back up the mon, hopefully the quorum will start again.

[subhamkrai]

Testing locally, I saw that the restored mon pod has the sleep infinity command instead of having the original ceph-mon command restored. I wouldn't expect the command to be modified on the mon. It should have just been modified on the mon debug pod. If you fix this command when starting back up the mon, hopefully the quorum will start again.

thanks @travisn I,ll check and update.

[travisn]

A few more small changes...

[travisn]

The commits look like they aren't strictly needed. How about squashing them? Then a separate commit for the log collector likely makes sense.

[subhamkrai]

The commits look like they aren't strictly needed. How about squashing them? Then a separate commit for the log collector likely makes sense.

which commits @travisn, could enter the title not able to get the commit from the comment.

[travisn]

LGTM. Can you just update the commit description? It should discuss the command to restore mon quorum, instead of just talking about other small changes.