Ceph configuration for rgw

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Hi,

The cluster is Pacific 16.2.10 with containerized service and managed by cephadm.

"config show" shows running configuration. Who is supported?
mon, mgr and osd all work, but rgw doesn't. Is this expected?
I tried with client.<rgw daemon name from "ceph orch ps"> and without "client",
neither works.

When issue "config show", who connects the daemon and retrieves running config?
Is it mgr or mon?

Config update by "config set" will be populated to the service. Which services are
supported by this? I know mon, mgr and osd work, but rgw doesn't. Is this expected?
I assume this is similar to "config show", this support needs the capability of mgr/mon
to connect to service daemon?

To get running config from rgw, I always do
"docker exec <rgw container> ceph daemon <socket> config show".
Is that the only way? I assume it's the same to get running config from all services.
Just the matter of supported by mgr/mon or not?

I've been configuring rgw by configuration file. Is that the recommended way?
I tried with configuration db, like "config set", it doesn't seem working.
Is this expected?

I see two cons with configuration file for rgw.
1) When start rgw with cephadm ("orch apply -i <rgw.yaml>"), I have to start the daemon
    then update configuration file and restart. I don't find a way to achieve this by single step.
2) When "orch daemon redeploy" or upgrade rgw, the configuration file will be re-generated
   and I have to update it again.
Is this all how it's supposed to work or I am missing anything?


Thanks!
Tony
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