Add warning about locking subcloud sysadmin account during upgrades

[Ngairangbam Mili]

In the page https://docs.starlingx.io/dist_cloud/kubernetes/distributed-upgrade-orchestration-process-using-the-cli.html,

Added the following warning just before step 6:

      Do not log in to the subcloud using the sysadmin account during an upgrade
      procedure. During an upgrade, the subcloud password is reset to the
      default value and is subsequently resynced, and any login attempt during
      the upgrade will fail. Also, consecutive unsuccessful login attempts may
      lock your account.

Added the following note after step 6:

     Before attempting to log in to the subclouds using the sysadmin account,
     verify that the subcloud ``platform_sync_status`` is synced. This would
     ensure that the sysadmin password is successfully resynced to the subclouds
     and that login attempts do not fail.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/starlingx/docs/+/892730
Committed: https://opendev.org/starlingx/docs/commit/8ea361bc4e81edd45c55a84a715e668ab94deb4e
Submitter: "Zuul (22348)"
Branch: master

commit 8ea361bc4e81edd45c55a84a715e668ab94deb4e
Author: Ngairangbam Mili <email address hidden>
Date: Fri Aug 25 05:04:19 2023 +0000

    Add warning about locking subcloud sysadmin account during upgrades (r8, r7, r6, r5, ds8, ds7, ds6)

    Added a warning and a note about logging in to subcloud using sysadmin account during an upgrade.

    Closes-Bug: 2036433

    Change-Id: Ib51ef2c7ad43ed918f8e8f35aaefdab5b39ea3e4
    Signed-off-by: Ngairangbam Mili <email address hidden>

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: r/stx.8.0
Review: https://review.opendev.org/c/starlingx/docs/+/895902

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: r/stx.7.0
Review: https://review.opendev.org/c/starlingx/docs/+/895903

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: r/stx.6.0
Review: https://review.opendev.org/c/starlingx/docs/+/895904

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: r/stx.5.0
Review: https://review.opendev.org/c/starlingx/docs/+/895905

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/starlingx/docs/+/895905
Committed: https://opendev.org/starlingx/docs/commit/6e8a4517adac4a289a96efdc164d77797f7b0436
Submitter: "Zuul (22348)"
Branch: r/stx.5.0

commit 6e8a4517adac4a289a96efdc164d77797f7b0436
Author: Ngairangbam Mili <email address hidden>
Date: Fri Aug 25 05:04:19 2023 +0000

    Add warning about locking subcloud sysadmin account during upgrades (r8, r7, r6, r5, ds8, ds7, ds6)

    Added a warning and a note about logging in to subcloud using sysadmin account during an upgrade.

    Closes-Bug: 2036433

    Change-Id: Ib51ef2c7ad43ed918f8e8f35aaefdab5b39ea3e4
    Signed-off-by: Ngairangbam Mili <email address hidden>
    (cherry picked from commit 8ea361bc4e81edd45c55a84a715e668ab94deb4e)

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/starlingx/docs/+/895904
Committed: https://opendev.org/starlingx/docs/commit/e47d203ca508412350957b1d06f94ff67e3a5bdd
Submitter: "Zuul (22348)"
Branch: r/stx.6.0

commit e47d203ca508412350957b1d06f94ff67e3a5bdd
Author: Ngairangbam Mili <email address hidden>
Date: Fri Aug 25 05:04:19 2023 +0000

    Add warning about locking subcloud sysadmin account during upgrades (r8, r7, r6, r5, ds8, ds7, ds6)

    Added a warning and a note about logging in to subcloud using sysadmin account during an upgrade.

    Closes-Bug: 2036433

    Change-Id: Ib51ef2c7ad43ed918f8e8f35aaefdab5b39ea3e4
    Signed-off-by: Ngairangbam Mili <email address hidden>
    (cherry picked from commit 8ea361bc4e81edd45c55a84a715e668ab94deb4e)

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/starlingx/docs/+/895903
Committed: https://opendev.org/starlingx/docs/commit/b7b8c6946a3a9fd9e41deebafa335d168271edc4
Submitter: "Zuul (22348)"
Branch: r/stx.7.0

commit b7b8c6946a3a9fd9e41deebafa335d168271edc4
Author: Ngairangbam Mili <email address hidden>
Date: Fri Aug 25 05:04:19 2023 +0000

    Add warning about locking subcloud sysadmin account during upgrades (r8, r7, r6, r5, ds8, ds7, ds6)

    Added a warning and a note about logging in to subcloud using sysadmin account during an upgrade.

    Closes-Bug: 2036433

    Change-Id: Ib51ef2c7ad43ed918f8e8f35aaefdab5b39ea3e4
    Signed-off-by: Ngairangbam Mili <email address hidden>
    (cherry picked from commit 8ea361bc4e81edd45c55a84a715e668ab94deb4e)

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/starlingx/docs/+/895902
Committed: https://opendev.org/starlingx/docs/commit/82173d856797d252c9a32b2d2767a507333d2335
Submitter: "Zuul (22348)"
Branch: r/stx.8.0

commit 82173d856797d252c9a32b2d2767a507333d2335
Author: Ngairangbam Mili <email address hidden>
Date: Fri Aug 25 05:04:19 2023 +0000

    Add warning about locking subcloud sysadmin account during upgrades (r8, r7, r6, r5, ds8, ds7, ds6)

    Added a warning and a note about logging in to subcloud using sysadmin account during an upgrade.

    Closes-Bug: 2036433

    Change-Id: Ib51ef2c7ad43ed918f8e8f35aaefdab5b39ea3e4
    Signed-off-by: Ngairangbam Mili <email address hidden>
    (cherry picked from commit 8ea361bc4e81edd45c55a84a715e668ab94deb4e)