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We are introducing new design for adding new data to telemetry reports.

The current design requires increasing the telemetry revision each time we add new data to the report.
As a result, users need to re-opt-in to telemetry.
This new design allows for adding new data to the report, while allowing users to keep sending only what they already opted-in to, hence no re-opt-in is required.
In case users wish to report the new data as well, they need to re-opt-in and enable any new channels. 

See PR: https://github.com/ceph/ceph/pull/44251.

As a result of the change, new CLI commands are now available.
The user can see a sample report of what they are opted-in to with:

  
ceph telemetry show
ceph telemetry show-device
ceph telemetry show-all

(which are not a new command)
and to preview a sample report that contains the new data with:

ceph telemetry preview
ceph telemetry preview-device
ceph telemetry preview-all

Users can see the diff between collections they are opted-in to and new collections with:

ceph telemetry diff

To list all collections:

ceph telemetry collection ls

We should expose these commands in the dashboard too.