Bug 1895430: Fix edit flow in case of custom template application

[divyanshiGupta]

Fixes:
https://issues.redhat.com/browse/ODC-5017

Analysis / Root cause:
User is not able to edit custom template application because we only add the user labels (which in this case are template specific labels) and pod labels to spec.template.metadata.label and specific spec.template.metadata.label labels are getting removed. Another reason is during edit we get the imageStream based on the value of app.kubernetes.io/instance and if the respective imageStream doesnt have app.kubernetes.io/instance label the edit flow will not get the imageStream to be updated. We will ask the user to add app.kubernetes.io/instance on the imageStream. For more context - https://issues.redhat.com/browse/ODC-5017?focusedCommentId=15387232&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-15387232

Solution Description:
Preserve specific spec.template.metadata.label labels during edit.

Screen shots / Gifs for design review:

Unit test coverage report:

Browser conformance:

• Chrome
• Firefox
• Safari
• Edge

[divyanshiGupta]

/assign @christianvogt

[christianvogt]

/lgtm
/approve

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: christianvogt, divyanshiGupta

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[openshift-bot]

/retest

Please review the full test history for this PR and help us cut down flakes.

[openshift-ci-robot]

@divyanshiGupta: All pull requests linked via external trackers have merged:

Bugzilla bug 1895430 has been moved to the MODIFIED state.

In response to this:

Bug 1895430: Fix edit flow in case of custom template application

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[divyanshiGupta]

/cherrypick release-4.6

[openshift-cherrypick-robot]

@divyanshiGupta: new pull request created: #7148

In response to this:

/cherrypick release-4.6

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.