Comment 5 for bug 1851290

I have tested this with Eoan proposed - ceph-mon now bootstraps and ceph reports that an OK health status:

https://pastebin.ubuntu.com/p/9brKDGmHcf/

ceph-osd also passes a storage test once related to this particular ceph-mon, when the following was executed from one of the ceph-mon nodes:

$ sudo ceph osd pool create rbd 128
$ echo 123456789 > /tmp/input.txt
$ sudo rados put -p rbd test_input /tmp/input.txt
$ sudo rados get -p rbd test_input /dev/stdout
123456789