[Bug 1914584] Re: [SRU] radosgw-admin user create error message confusing if user with email already exists

[Dan Streetman]

I'm unsubscribing the sts-sponsors team, due to the fact that this bug
has strayed very far from the correct SRU process. If the sts-sponsors
team should sponsor patches for this bug, please reset this bug to fix-
released and open a new bug to track patching it.

The SRU process can be found here:
https://wiki.ubuntu.com/StableReleaseUpdates

please note specifically if verification fails:
https://wiki.ubuntu.com/StableReleaseUpdates#Verification

you should either upload correct patches on top of the -proposed
version, using the same bug number, or - if you choose to just revert
and reupload - you should *NOT* use -v with the new upload to
automatically move the not-actually-fixed bug into fix-released.

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https://bugs.launchpad.net/bugs/1914584

Title:
  [SRU] radosgw-admin user create error message confusing if user with
  email already exists

Status in Ceph:
  Unknown
Status in Ubuntu Cloud Archive:
  New
Status in Ubuntu Cloud Archive queens series:
  Won't Fix
Status in Ubuntu Cloud Archive rocky series:
  Won't Fix
Status in Ubuntu Cloud Archive stein series:
  Won't Fix
Status in Ubuntu Cloud Archive train series:
  Won't Fix
Status in Ubuntu Cloud Archive ussuri series:
  New
Status in Ubuntu Cloud Archive victoria series:
  New
Status in ceph package in Ubuntu:
  New
Status in ceph source package in Bionic:
  New
Status in ceph source package in Focal:
  New
Status in ceph source package in Groovy:
  New
Status in ceph source package in Hirsute:
  New

Bug description:
  [Impact]

  When creating a new S3 user, the error message is confusing if the
  email address used is already associated with another S3 account.

  To reproduce:

  radosgw-admin user create --uid=foo --display-name="Foo test" --email=bar at domain.invalid
  #[ success ]
  radosgw-admin user create --uid=test --display-name="AN test" --email=bar at domain.invalid
  could not create user: unable to parse parameters, user id mismatch, operation id: foo does not match: test

  As a result, it's completely unclear what went wrong with the user
  creation.

  [Test case]

  Create an S3 account via radosgw-admin. Then create another user but use
  the same email address - it should provide a clear description of what
  the problem is.

  [Where problems could occur]

  The new message may yet be unclear or could complain that an email
  exists even though it doesn't exist (false positive). It's an improved
  diagnostic by checking if the email id exists. Perhaps, user creation
  might become problematic if the fix doesn't work.

  [Other Info]
  - The patch was provided by Matthew Vernon (attached here)
  - Upstream tracker: https://tracker.ceph.com/issues/49137
  - Upstream PR: https://github.com/ceph/ceph/pull/39293
  - Backported to Pacific, Octopus, and Nautilus upstream releases. Luminous is EOL'ed upstream, so we'd like to backport to Luminous (Bionic/queens).

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