rbd: rework image chain iteration

[Yuggupta27]

Improve the image chain iteration by creating and deleting a volume inside the loop and using it for traversing, in place of just updating parameters of the existing volume.

Fixes: #2144

---

Show available bot commands

These commands are normally not required, but in case of issues, leave any of the following bot commands in an otherwise empty comment in this PR:

• /retest ci/centos/<job-name>: retest the <job-name> after unrelated failure (please report the failure too!)
• /retest all: run this in case the CentOS CI failed to start/report any test progress or results

[mergify[bot]]

This pull request now has conflicts with the target branch. Could you please resolve conflicts and force push the corrected changes? 🙏

[mergify[bot]]

This pull request now has conflicts with the target branch. Could you please resolve conflicts and force push the corrected changes? 🙏

[github-actions[bot]]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed in two weeks if no further activity occurs. Thank you for your contributions.

[github-actions[bot]]

This pull request has been automatically closed due to inactivity. Please re-open if these changes are still required.

[Madhu-1]

@Yuggupta27 am reopening this PR as this is still a pending one.

[github-actions[bot]]

This pull request has been automatically closed due to inactivity. Please re-open if these changes are still required.

[Madhu-1]

@Yuggupta27 any update here?

[mergify[bot]]

This pull request now has conflicts with the target branch. Could you please resolve conflicts and force push the corrected changes? 🙏

[Yuggupta27]

Hi, I would not be able to currently persue this improvement due to other commitments. Closing this for now.