[Index Patterns] Move rollup config to index pattern management

[mattkime]

Summary

TLDR; Removing rollup plugin's dependence on the indexPatternManagment plugin will allow the (in progress) indexPatternEditor plugin to determine if the rollup plugin is active, otherwise there's a circular dependency. This is also tech debt reduction.

Refactor index pattern creation code so its all within the index pattern management plugin. Previously rollup related code was in the rollup plugin since it was an x-pack feature. We're no longer creating one off APIs to maintain the distinction between x-pack features and OSS code.

[elasticmachine]

Pinging @elastic/kibana-app-services (Team:AppServices)

[mattkime]

Rollups had two js files that I'd prefer not to convert to typescript at this point. There are plans for rollup improvements that would make these files unnecessary.

[mattkime]

This value is duplicated from the rollup plugin. I thought it would be better than creating a dependency but open to discuss.

[cjcenizal]

Code LGTM! I think that removing this indirection and the dependency of rollups upon index pattern management makes the code easier to understand. I haven't tested locally so I'm assuming you verified that rollup index patterns can still be created, edited, and listed.

[kibanamachine]

💚 Build Succeeded

• continuous-integration/kibana-ci/pull-request
• Commit: af50788
• Storybooks Preview

Metrics [docs]

Module Count

Fewer modules leads to a faster build time

id	before	after	diff
indexPatternManagement	162	167	+5
rollup	169	165	-4
total			+1

Public APIs missing comments

Total count of every public API that lacks a comment. Target amount is 0. Run node scripts/build_api_docs --plugin [yourplugin] --stats comments for more detailed information.

id	before	after	diff
indexPatternManagement	45	0	-45

Async chunks

Total size of all lazy-loaded chunks that will be downloaded as the user navigates the app

id	before	after	diff
rollup	230.2KB	230.2KB	+9.0B

Public APIs missing exports

Total count of every type that is part of your API that should be exported but is not. This will cause broken links in the API documentation system. Target amount is 0. Run node scripts/build_api_docs --plugin [yourplugin] --stats exports for more detailed information.

id	before	after	diff
indexPatternManagement	3	0	-3

Page load bundle

Size of the bundles that are downloaded on every page load. Target size is below 100kb

id	before	after	diff
indexPatternManagement	12.9KB	19.5KB	+6.6KB
rollup	40.8KB	33.8KB	-7.0KB
total			-423.0B

Unknown metric groups

API count

id	before	after	diff
indexPatternManagement	45	0	-45

References to deprecated APIs

id	before	after	diff
indexPatternManagement	68	0	-68

History

• 💔 Build #131179 failed 5cc9214
• 💔 Build #131166 failed c134740

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

[kibanamachine]

💚 Backport successful

Status	Branch	Result
✅	7.x

This backport PR will be merged automatically after passing CI.

[kibanamachine]

Looks like this PR has a backport PR but it still hasn't been merged. Please merge it ASAP to keep the branches relatively in sync.