Comment 2 for bug 2047066

Reviewed: https://review.opendev.org/c/starlingx/distcloud/+/903420
Committed: https://opendev.org/starlingx/distcloud/commit/717ff7971da4037e258d8bd3bf3d6224f82ef5bd
Submitter: "Zuul (22348)"
Branch: master

commit 717ff7971da4037e258d8bd3bf3d6224f82ef5bd
Author: twang4 <email address hidden>
Date: Thu Dec 21 09:03:18 2023 +0800

    Disallow assigning an unmanaged subcloud to peer group

    Request to add an unmanaged subcloud will be rejected.

    Test plan:
    - PASS: Verify that a managed/online/complete/prestage-complete
            subcloud can be added to the subcloud peer group.
    - PASS: Verify that an offline or unmanaged subcloud cannot be
            added to the subcloud peer group.

    Closes-Bug: 2047066

    Signed-off-by: Wang Tao <email address hidden>
    Change-Id: Ie339f6645e7c42966af395dfa87a81898b1f0af7