YARN-11886. Introduce Capacity Scheduler UI.

[brumi1024]

Description of PR

Migrate the new YARN Scheduler UI, and ensure maven builds it when the -Pyarn-ui flag is present. For details and the design doc please see the jira YARN-11885.

How was this patch tested?

Ran the build command and checked the artifacts.

For code changes:

• Does the title or this PR starts with the corresponding JIRA issue id (e.g. 'HADOOP-17799. Your PR title ...')?
• Object storage: have the integration tests been executed and the endpoint declared according to the connector-specific documentation?
• If adding new dependencies to the code, are these dependencies licensed in a way that is compatible for inclusion under ASF 2.0?
• If applicable, have you updated the LICENSE, LICENSE-binary, NOTICE-binary files?

[hadoop-yetus]

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[hadoop-yetus]

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[slfan1989]

@brumi1024 This looks really cool—thanks for your contribution!

[brumi1024]

Thanks @slfan1989 😊

[hadoop-yetus]

💔 -1 overall

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[K0K0V0K]

Thanks @brumi1024 for this new feature!
LGTM

[hadoop-yetus]

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[brumi1024]

The commit is too big for it to be successfully built. Locally the build works even with the updated yarn-ui target (-Pyarn-ui), and since this commit is just about moving the code and ensuring it's built I think we shouldn't block it on yetus. Merging it to trunk, and then I'll be monitoring the builds if any issue occurs.

[steveloughran]

ok need some license fixes.

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-capacity-scheduler-ui/src/main/webapp/src/features/queue-management/components/CapacityRowEditor.tsx:1:Missing Apache License
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-capacity-scheduler-ui/src/main/webapp/src/features/queue-management/components/VectorCapacityEditor.tsx:1:Missing Apache License
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-capacity-scheduler-ui/src/main/webapp/src/features/queue-management/components/QueueVectorCapacityDisplay.tsx:1:Missing Apache License
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-capacity-scheduler-ui/src/main/webapp/src/features/queue-management/components/QueueValidationBadges.tsx:1:Missing Apache License
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-capacity-scheduler-ui/src/main/webapp/src/features/queue-management/components/QueueCardContextMenu.tsx:1:Missing Apache License
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-capacity-scheduler-ui/src/main/webapp/src/features/queue-management/components/RemainingHelperDisplay.tsx:1:Missing Apache License
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-capacity-scheduler-ui/src/main/webapp/src/features/property-editor/components/CapacityPropertyField.tsx:1:Missing Apache License
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-capacity-scheduler-ui/src/main/webapp/src/features/property-editor/components/ValidationIssuesPopover.tsx:1:Missing Apache License
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-capacity-scheduler-ui/src/main/webapp/src/features/property-editor/components/EnumPropertyField.tsx:1:Missing Apache License
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-capacity-scheduler-ui/src/main/webapp/src/features/property-editor/components/PropertyFieldHelpers.tsx:1:Missing Apache License
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-capacity-scheduler-ui/src/main/webapp/src/features/queue-comparison/components/__tests__/QueueComparisonDialog.test.tsx:1:Missing Apache License
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-capacity-scheduler-ui/src/main/webapp/src/features/validation/README.md:1:Missing Apache License
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-capacity-scheduler-ui/src/main/webapp/src/app/app.css:1:Missing Apache License
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-capacity-scheduler-ui/src/main/webapp/eslint.config.js:1:Missing Apache License
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-capacity-scheduler-ui/README.md:1:Missing Apache License

I will do the (am doing) the hadoop-assemblies failure #8112 ; will leave this one to you.

@K0K0V0K @brumi1024
would be nice if one of you could approve my PR...

[brumi1024]

@steveloughran yes, sorry I missed those. Approved your PR, and will create a follow-up to fix the licence issues.