rgw/admin: Add ErrNoSuchSubUser

[sj14]

There was no Error for comparing the NoSuchSubUser code.

Example error:

error(github.com/ceph/go-ceph/rgw/admin.statusError) {Code: "NoSuchSubUser", RequestID: "tx0000074e0db2ad9281b8f-00666abc30-10b8-dev1", HostID: "10b8-dev1-dev"}

Reference:

https://github.com/ceph/ceph/blob/8a2a786e62ba1577dde990fef49d18f75efdd023/src/rgw/rgw_common.cc#L106C1-L106C52

Checklist

• Added tests for features and functional changes
• Public functions and types are documented
• Standard formatting is applied to Go code
• Is this a new API? Added a new file that begins with //go:build ceph_preview
• Ran make api-update to record new APIs

New or infrequent contributors may want to review the go-ceph Developer's Guide including the section on how we track API Status and the API Stability Plan.

The go-ceph project uses mergify. View the mergify command guide for information on how to interact with mergify. Add a comment with @Mergifyio rebase to rebase your PR when github indicates that the PR is out of date with the base branch.

[anoopcs9]

Can you please add a related test? You may just expand TestHandleStatusError to consider the error(NoSuchSubUser) which is being added.

[sj14]

Added. Unfortunately, I can't test it even though ceph-client is installed via homebrew:

# github.com/ceph/go-ceph/rados
some/path/go-ceph/rados/alloc_hint_flags.go:4:11: fatal error: 'rados/librados.h' file not found
 #include <rados/librados.h>
          ^~~~~~~~~~~~~~~~~~
1 error generated.
FAIL	github.com/ceph/go-ceph/rgw/admin [build failed]

[anoopcs9]

Added. Unfortunately, I can't test it even though ceph-client is installed via homebrew:

No worries, our CI has it covered.

=== RUN TestHandleStatusError
--- PASS: TestHandleStatusError (0.00s)

[anoopcs9]

lgtm, thanks.