[ML] Package @kbn/ml-anomaly-utils

[walterra]

Summary

Part of #156643.

Creates Package @kbn/ml-anomaly-utils.

• This moves some of the utility functions, constants and types related to Anomaly Detection we previously exposed from the ml plugin itself to a package @kbn/ml-anomaly-utils, resulting in ~5.9KB reduction of the plugin's page load bundle size.
• To reduce increases in async bundle size for consuming plugins the utils have been refactored into individual files to allow deep imports and get some optimization through that. Some previously duplicated code in consuming plugins has been deleted and replaced with deep imports of the corresponding original code in the package.
• Types have been prefixed with Ml.
• Constants have been prefixed with ML_.

Created package via node scripts/generate package @kbn/ml-anomaly-utils --web --dir ./x-pack/packages/ml/anomaly_utils.

Checklist

• This was checked for breaking API changes and was labeled appropriately

[walterra]

Package sizes for 797a10c, consuming plugins are importing the full package:

Nice, Refactoring and doing deep imports in consuming plugins (1989dcc) works, there's a 1.9KB reduction for apm:

Also bringing down async bundle growth for other plugins:

[elasticmachine]

Pinging @elastic/ml-ui (:ml)

[elasticmachine]

Pinging @elastic/apm-ui (Team:APM)

[elasticmachine]

Pinging @elastic/uptime (Team:uptime)

[sorenlouv]

APM changes lgtm

[jgowdyelastic]

LGTM

[spong]

Security Solution changes LGTM! 👍 Thanks for the cleanup here @walterra

[shahzad31]

LGTM !!

[peteharverson]

LGTM

[kibana-ci]

💛 Build succeeded, but was flaky

• Buildkite Build
• Commit: 662f414

Failed CI Steps

• FTR Configs #58
• APM Cypress Tests #1

Metrics [docs]

Module Count

Fewer modules leads to a faster build time

id	before	after	diff
apm	1331	1337	+6
infra	1389	1392	+3
ml	1724	1732	+8
synthetics	1243	1250	+7
total			+24

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
ml	81	80	-1

Any counts in public APIs

Total count of every any typed public API. Target amount is 0. Run node scripts/build_api_docs --plugin [yourplugin] --stats any for more detailed information.

id	before	after	diff
@kbn/ml-anomaly-utils	-	3	+3
ml	9	3	-6
total			-3

Async chunks

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

id	before	after	diff
apm	3.5MB	3.5MB	+1.3KB
infra	2.0MB	2.0MB	+4.0B
ml	3.4MB	3.4MB	+2.6KB
synthetics	1.2MB	1.2MB	+2.2KB
total			+6.2KB

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
ml	41	36	-5

Page load bundle

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

id	before	after	diff
apm	32.3KB	32.4KB	+43.0B
ml	77.4KB	71.5KB	-5.9KB
synthetics	27.4KB	27.3KB	-132.0B
total			-6.0KB

Unknown metric groups

API count

id	before	after	diff
@kbn/ml-anomaly-utils	-	142	+142
ml	257	166	-91
total			+51

ESLint disabled line counts

id	before	after	diff
enterpriseSearch	19	21	+2
securitySolution	398	401	+3
total			+5

Total ESLint disabled count

id	before	after	diff
enterpriseSearch	20	22	+2
securitySolution	478	481	+3
total			+5

History

• 💔 Build #124745 failed a979569
• 💔 Build #124666 failed cae86e9
• 💛 Build #123766 was flaky 483706c
• 💔 Build #123759 failed ab7b120
• 💛 Build #123578 was flaky bdee7cc

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

cc @walterra

[tonyghiani]

Infra changes LGTM!