Package: ceph-mon Version: 10.2.5-7.2 Severity: important Dear Maintainer,
The systemd unit /lib/systemd/system/ceph-mon@.service contains the following configuration: ProtectSystem=full This prevent the monitor from writing to /etc. However, when joining a cluster, ceph-mon may write files in this directory. For instance, if the cluster has an admin client (which is always the case if the cluster was created following Ceph's documentation), ceph-mon will try to write this file: /etc/ceph/ceph.client.admin.keyring Which causes the service to crash. Possible solutions to this issue are to remove ProtectSystem, or ask upstream to only write this kind of files to /var/lib/ceph. Best regards, Valentin Lorentz
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