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chore(NA): upgrade to webpack 5 #191106

Merged
merged 244 commits into from
Feb 14, 2025
Merged

chore(NA): upgrade to webpack 5 #191106

merged 244 commits into from
Feb 14, 2025

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mistic
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@mistic mistic commented Aug 22, 2024

Summary

This PR contains the resulting work of a massive effort that ports our on top bundler abstraction (called @kbn/optimizer) from Webpack v4 into Webpack v5. It's essential in terms of long term maintenance since v4 was not receiving updates any longer but will also unblock some new features that could be beneficial for our future DevEx endeavours.

Next you can find a small list of all the accomplished tasks on this journey.

Completed Tasks

  • Upgrade dependencies to match the ones on webpack v5
  • Fix null-loader usages
  • Fix raw-loader usages
  • Fix file-loader usages
  • Fix url-loader usages
  • Fix @kbn/optimizer-webpack-helpers to support webpack v5
  • Adopt previous webpack v4 polyfill-all strategy with node-polyfill-webpack-plugin
  • Fix theme-loader on @kbn/optimizer
  • Migrate configurations and ad-hoc loader options on all webpack configs from v4 to v5
  • Fix @kbn/test jest resolver for file-loader cases
  • Migrate public-path loader on UiSharedDeps
  • Fix all usages of webpack-merge
  • Migrate BundleRemoteModule
  • Migrate BundleRemotesPlugin
  • Correctly migrate PopulateBundleCachePlugin
  • Correctly migrate BundleMetricsPlugin
  • Check if the profiling plugins still work (--profile flag)
  • Recover if possible the previous webpack v4 cacheGroup chunks rename to something like data.plugin.chunk.0.js
  • Run /ci and make sure we get our first green CI, otherwise work on the errors until we do
  • Profile and solve bottlenecks until we get a cold build performance similar to the one we had on webpack v4 (node scripts/build_kibana_platform_plugins --no-cache).
  • OpenSSL Legacy Warnings: try to remove --openssl-legacy-provider flags
  • Add Webpack to Renovate config
  • Explore removing NodePolyfillPlugin (here) and add each polyfill needed individually per each webpack config to check if we get smaller bundles. If we do it's better to go with the case by case need approach instead of deploying a bunch of polyfills with NodePolyfillPlugin. As another alternative, create a custom smaller plugin with only the union of all needed polyfills.
  • Evaluate if we want to touch the resolutions on mainFields and conditionNames
  • Understand why @import 'src/core/public/mixins' does not work anymore (not a problem, we should use relative paths anyway but we want to track why it changed from v4 to v5)
  • BUG: Child compilers are having errors hidden and/or changed from error to warning
  • Fix license check for Artistic-2.0 is the license for domain-browser. This package is a dependency of NodePolyfillPlugin. Artistic 2.0 license is classified as yellow and should only be used for dev dependencies.
  • Make sure resourceQuery: { not: /raw/ } is not necessary on other webpack configs like storybook one
  • Find what is being wrongly removed by usedExports optimization; hint: I believe it is identifying a lot of exports inside the sync entry of plugins as unused exports and removing them. Then __kbnBootstrap__ can't be found
  • Rebalance @kbn/optimizer pickMaxWorkerCount
  • Re-open the issue to fix sass-warnings #190345 or downgrade sass-loader to v10
  • Remove previous esm no parse rules
  • Confirm esm support is working
  • Confirm console override is needed
  • Confirm react prod builds on ui shared deps for distributable
  • Remove customization for xyflow from webpack configs
  • Clean all the code
  • Make sure collected metrics from stats are still aligned with what we were collecting before; also verify if the modules used for optimizer caches etc are well generated (@kbn/node-libs-browser)
  • Fix watch performance

@elastic elastic deleted a comment from kibana-ci Aug 22, 2024
@Ikuni17 Ikuni17 mentioned this pull request Aug 23, 2024
2 tasks
@mistic
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mistic commented Feb 14, 2025

💚 All backports created successfully

Status Branch Result
8.18

Note: Successful backport PRs will be merged automatically after passing CI.

Questions ?

Please refer to the Backport tool documentation

mistic added a commit to mistic/kibana that referenced this pull request Feb 14, 2025
### Summary

- Closes elastic#89741

This PR contains the resulting work of a massive effort that ports our
on top bundler abstraction (called @kbn/optimizer) from Webpack v4 into
Webpack v5. It's essential in terms of long term maintenance since v4
was not receiving updates any longer but will also unblock some new
features that could be beneficial for our future DevEx endeavours.

Next you can find a small list of all the accomplished tasks on this
journey.

### Completed Tasks
- [x] Upgrade dependencies to match the ones on webpack v5
- [x] Fix null-loader usages
- [x] Fix raw-loader usages
- [x] Fix file-loader usages
- [x] Fix url-loader usages
- [x] Fix `@kbn/optimizer-webpack-helpers` to support webpack v5
- [x] Adopt previous webpack v4 polyfill-all strategy with
node-polyfill-webpack-plugin
- [x] Fix theme-loader on @kbn/optimizer
- [x] Migrate configurations and ad-hoc loader options on all webpack
configs from v4 to v5
- [x] Fix @kbn/test jest resolver for file-loader cases
- [x] Migrate public-path loader on UiSharedDeps
- [x] Fix all usages of webpack-merge
- [x] Migrate BundleRemoteModule
- [x] Migrate BundleRemotesPlugin
- [x] Correctly migrate PopulateBundleCachePlugin
- [x] Correctly migrate BundleMetricsPlugin
- [x] Check if the profiling plugins still work (--profile flag)
- [x] Recover if possible the previous webpack v4 cacheGroup chunks
rename to something like `data.plugin.chunk.0.js`
- [x] Run `/ci` and make sure we get our first green CI, otherwise work
on the errors until we do
- [x] Profile and solve bottlenecks until we get a cold build
performance similar to the one we had on webpack v4 (`node
scripts/build_kibana_platform_plugins --no-cache`).
- [x] OpenSSL Legacy Warnings: try to remove `--openssl-legacy-provider
` flags
- [x] Add Webpack to Renovate config
- [x] Explore removing `NodePolyfillPlugin`
([here](https://www.npmjs.com/package/node-polyfill-webpack-plugin)) and
add each polyfill needed individually per each webpack config to check
if we get smaller bundles. If we do it's better to go with the case by
case need approach instead of deploying a bunch of polyfills with
NodePolyfillPlugin. As another alternative, create a custom smaller
plugin with only the union of all needed polyfills.
- [x] Evaluate if we want to touch the resolutions on mainFields and
conditionNames
- [x] Understand why `@import 'src/core/public/mixins'` does not work
anymore (not a problem, we should use relative paths anyway but we want
to track why it changed from v4 to v5)
- [x] BUG: Child compilers are having errors hidden and/or changed from
error to warning
- [x] Fix license check for
[Artistic-2.0](https://spdx.org/licenses/Artistic-2.0.html) is the
license for
[domain-browser](https://github.com/bevry/domain-browser?tab=License-1-ov-file).
This package is a dependency of
[NodePolyfillPlugin](https://www.npmjs.com/package/node-polyfill-webpack-plugin).
Artistic 2.0 license is [classified as
yellow](https://github.com/elastic/open-source/blob/main/elastic-product-policy.md#yellow-list)
and should only be used for dev dependencies.
- [x] Make sure `resourceQuery: { not: /raw/ }` is not necessary on
other webpack configs like storybook one
- [x] Find what is being wrongly removed by usedExports optimization;
hint: I believe it is identifying a lot of exports inside the sync entry
of plugins as unused exports and removing them. Then `__kbnBootstrap__`
can't be found
- [x] Rebalance @kbn/optimizer pickMaxWorkerCount
- [x] Re-open the issue to fix sass-warnings
[elastic#190345](elastic#190345) or downgrade
sass-loader to v10
- [x] Remove previous esm no parse rules
- [x] Confirm esm support is working
- [x] Confirm console override is needed
- [x] Confirm react prod builds on ui shared deps for distributable
- [x] Remove customization for
[xyflow](https://github.com/xyflow/xyflow) from webpack configs
- [x] Clean all the code
- [x] Make sure collected metrics from stats are still aligned with what
we were collecting before; also verify if the modules used for optimizer
caches etc are well generated (@kbn/node-libs-browser)
- [x] Fix watch performance

---------

Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>
Co-authored-by: Brad White <brad.white@elastic.co>
(cherry picked from commit 203bc28)

# Conflicts:
#	.github/CODEOWNERS
#	package.json
#	packages/kbn-optimizer/limits.yml
#	packages/kbn-optimizer/src/worker/theme_loader.ts
#	packages/kbn-plugin-helpers/src/integration_tests/build.test.ts
#	src/platform/packages/private/kbn-ui-shared-deps-npm/webpack.config.js
#	src/platform/packages/private/kbn-ui-shared-deps-src/src/definitions.js
#	x-pack/test/security_solution_cypress/package.json
#	yarn.lock
mistic added a commit to mistic/kibana that referenced this pull request Feb 14, 2025
### Summary

- Closes elastic#89741

This PR contains the resulting work of a massive effort that ports our
on top bundler abstraction (called @kbn/optimizer) from Webpack v4 into
Webpack v5. It's essential in terms of long term maintenance since v4
was not receiving updates any longer but will also unblock some new
features that could be beneficial for our future DevEx endeavours.

Next you can find a small list of all the accomplished tasks on this
journey.

### Completed Tasks
- [x] Upgrade dependencies to match the ones on webpack v5
- [x] Fix null-loader usages
- [x] Fix raw-loader usages
- [x] Fix file-loader usages
- [x] Fix url-loader usages
- [x] Fix `@kbn/optimizer-webpack-helpers` to support webpack v5
- [x] Adopt previous webpack v4 polyfill-all strategy with
node-polyfill-webpack-plugin
- [x] Fix theme-loader on @kbn/optimizer
- [x] Migrate configurations and ad-hoc loader options on all webpack
configs from v4 to v5
- [x] Fix @kbn/test jest resolver for file-loader cases
- [x] Migrate public-path loader on UiSharedDeps
- [x] Fix all usages of webpack-merge
- [x] Migrate BundleRemoteModule
- [x] Migrate BundleRemotesPlugin
- [x] Correctly migrate PopulateBundleCachePlugin
- [x] Correctly migrate BundleMetricsPlugin
- [x] Check if the profiling plugins still work (--profile flag)
- [x] Recover if possible the previous webpack v4 cacheGroup chunks
rename to something like `data.plugin.chunk.0.js`
- [x] Run `/ci` and make sure we get our first green CI, otherwise work
on the errors until we do
- [x] Profile and solve bottlenecks until we get a cold build
performance similar to the one we had on webpack v4 (`node
scripts/build_kibana_platform_plugins --no-cache`).
- [x] OpenSSL Legacy Warnings: try to remove `--openssl-legacy-provider
` flags
- [x] Add Webpack to Renovate config
- [x] Explore removing `NodePolyfillPlugin`
([here](https://www.npmjs.com/package/node-polyfill-webpack-plugin)) and
add each polyfill needed individually per each webpack config to check
if we get smaller bundles. If we do it's better to go with the case by
case need approach instead of deploying a bunch of polyfills with
NodePolyfillPlugin. As another alternative, create a custom smaller
plugin with only the union of all needed polyfills.
- [x] Evaluate if we want to touch the resolutions on mainFields and
conditionNames
- [x] Understand why `@import 'src/core/public/mixins'` does not work
anymore (not a problem, we should use relative paths anyway but we want
to track why it changed from v4 to v5)
- [x] BUG: Child compilers are having errors hidden and/or changed from
error to warning
- [x] Fix license check for
[Artistic-2.0](https://spdx.org/licenses/Artistic-2.0.html) is the
license for
[domain-browser](https://github.com/bevry/domain-browser?tab=License-1-ov-file).
This package is a dependency of
[NodePolyfillPlugin](https://www.npmjs.com/package/node-polyfill-webpack-plugin).
Artistic 2.0 license is [classified as
yellow](https://github.com/elastic/open-source/blob/main/elastic-product-policy.md#yellow-list)
and should only be used for dev dependencies.
- [x] Make sure `resourceQuery: { not: /raw/ }` is not necessary on
other webpack configs like storybook one
- [x] Find what is being wrongly removed by usedExports optimization;
hint: I believe it is identifying a lot of exports inside the sync entry
of plugins as unused exports and removing them. Then `__kbnBootstrap__`
can't be found
- [x] Rebalance @kbn/optimizer pickMaxWorkerCount
- [x] Re-open the issue to fix sass-warnings
[elastic#190345](elastic#190345) or downgrade
sass-loader to v10
- [x] Remove previous esm no parse rules
- [x] Confirm esm support is working
- [x] Confirm console override is needed
- [x] Confirm react prod builds on ui shared deps for distributable
- [x] Remove customization for
[xyflow](https://github.com/xyflow/xyflow) from webpack configs
- [x] Clean all the code
- [x] Make sure collected metrics from stats are still aligned with what
we were collecting before; also verify if the modules used for optimizer
caches etc are well generated (@kbn/node-libs-browser)
- [x] Fix watch performance

---------

Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>
Co-authored-by: Brad White <brad.white@elastic.co>
(cherry picked from commit 203bc28)

# Conflicts:
#	.github/CODEOWNERS
#	package.json
#	packages/kbn-monaco/BUILD.bazel
#	packages/kbn-node-libs-browser-webpack-plugin/jest.config.js
#	packages/kbn-optimizer/limits.yml
#	packages/kbn-optimizer/src/worker/theme_loader.ts
#	packages/kbn-plugin-helpers/src/integration_tests/build.test.ts
#	packages/kbn-ui-shared-deps-npm/BUILD.bazel
#	packages/kbn-ui-shared-deps-npm/webpack.config.js
#	packages/kbn-ui-shared-deps-src/src/definitions.js
#	src/platform/packages/private/kbn-ui-shared-deps-src/BUILD.bazel
#	src/platform/plugins/shared/discover/.storybook/discover.webpack.ts
#	src/platform/plugins/shared/discover/.storybook/main.ts
#	src/plugins/discover/.storybook/discover.webpack.ts
#	src/plugins/discover/.storybook/main.js
#	src/plugins/discover/.storybook/main.ts
#	tsconfig.base.json
#	x-pack/platform/plugins/shared/fleet/package.json
#	x-pack/platform/plugins/shared/osquery/package.json
#	x-pack/plugins/canvas/shareable_runtime/webpack.config.js
#	x-pack/plugins/canvas/storybook/canvas_webpack.ts
#	x-pack/plugins/security_solution/package.json
#	x-pack/solutions/observability/plugins/apm/ftr_e2e/package.json
#	x-pack/solutions/observability/plugins/profiling/e2e/package.json
#	x-pack/solutions/security/packages/kbn-cloud-security-posture/graph/.storybook/main.ts
#	x-pack/test/security_solution_cypress/package.json
#	yarn.lock
@mistic
Copy link
Member Author

mistic commented Feb 14, 2025

💚 All backports created successfully

Status Branch Result
8.17

Note: Successful backport PRs will be merged automatically after passing CI.

Questions ?

Please refer to the Backport tool documentation

@mistic mistic added backport:prev-major Backport to (8.x, 8.18, 8.17, 8.16) the previous major branch and other branches in development and removed backport:all-open Backport to all branches that could still receive a release labels Feb 14, 2025
@kibanamachine
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Starting backport for target branches: 8.16, 8.17, 8.18, 8.x, 9.0

https://github.com/elastic/kibana/actions/runs/13322345568

@kibanamachine
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💔 All backports failed

Status Branch Result
8.16 Backport failed because of merge conflicts
8.17 Backport failed because of merge conflicts
8.18 Backport failed because of merge conflicts
8.x Backport failed because of merge conflicts

You might need to backport the following PRs to 8.x:
- [scout] adding test helper @kbn/scout-oblt package and uptate onboarding tests (#209761)
- Remove dependency date-fns !! (#209539)
- [Cloud Security] Feature Flag Support for Cloud Security Posture Plugin (#205438)
9.0 Backport failed because of merge conflicts

Manual backport

To create the backport manually run:

node scripts/backport --pr 191106

Questions ?

Please refer to the Backport tool documentation

mistic added a commit to mistic/kibana that referenced this pull request Feb 14, 2025
### Summary

- Closes elastic#89741

This PR contains the resulting work of a massive effort that ports our
on top bundler abstraction (called @kbn/optimizer) from Webpack v4 into
Webpack v5. It's essential in terms of long term maintenance since v4
was not receiving updates any longer but will also unblock some new
features that could be beneficial for our future DevEx endeavours.

Next you can find a small list of all the accomplished tasks on this
journey.

### Completed Tasks
- [x] Upgrade dependencies to match the ones on webpack v5
- [x] Fix null-loader usages
- [x] Fix raw-loader usages
- [x] Fix file-loader usages
- [x] Fix url-loader usages
- [x] Fix `@kbn/optimizer-webpack-helpers` to support webpack v5
- [x] Adopt previous webpack v4 polyfill-all strategy with
node-polyfill-webpack-plugin
- [x] Fix theme-loader on @kbn/optimizer
- [x] Migrate configurations and ad-hoc loader options on all webpack
configs from v4 to v5
- [x] Fix @kbn/test jest resolver for file-loader cases
- [x] Migrate public-path loader on UiSharedDeps
- [x] Fix all usages of webpack-merge
- [x] Migrate BundleRemoteModule
- [x] Migrate BundleRemotesPlugin
- [x] Correctly migrate PopulateBundleCachePlugin
- [x] Correctly migrate BundleMetricsPlugin
- [x] Check if the profiling plugins still work (--profile flag)
- [x] Recover if possible the previous webpack v4 cacheGroup chunks
rename to something like `data.plugin.chunk.0.js`
- [x] Run `/ci` and make sure we get our first green CI, otherwise work
on the errors until we do
- [x] Profile and solve bottlenecks until we get a cold build
performance similar to the one we had on webpack v4 (`node
scripts/build_kibana_platform_plugins --no-cache`).
- [x] OpenSSL Legacy Warnings: try to remove `--openssl-legacy-provider
` flags
- [x] Add Webpack to Renovate config
- [x] Explore removing `NodePolyfillPlugin`
([here](https://www.npmjs.com/package/node-polyfill-webpack-plugin)) and
add each polyfill needed individually per each webpack config to check
if we get smaller bundles. If we do it's better to go with the case by
case need approach instead of deploying a bunch of polyfills with
NodePolyfillPlugin. As another alternative, create a custom smaller
plugin with only the union of all needed polyfills.
- [x] Evaluate if we want to touch the resolutions on mainFields and
conditionNames
- [x] Understand why `@import 'src/core/public/mixins'` does not work
anymore (not a problem, we should use relative paths anyway but we want
to track why it changed from v4 to v5)
- [x] BUG: Child compilers are having errors hidden and/or changed from
error to warning
- [x] Fix license check for
[Artistic-2.0](https://spdx.org/licenses/Artistic-2.0.html) is the
license for
[domain-browser](https://github.com/bevry/domain-browser?tab=License-1-ov-file).
This package is a dependency of
[NodePolyfillPlugin](https://www.npmjs.com/package/node-polyfill-webpack-plugin).
Artistic 2.0 license is [classified as
yellow](https://github.com/elastic/open-source/blob/main/elastic-product-policy.md#yellow-list)
and should only be used for dev dependencies.
- [x] Make sure `resourceQuery: { not: /raw/ }` is not necessary on
other webpack configs like storybook one
- [x] Find what is being wrongly removed by usedExports optimization;
hint: I believe it is identifying a lot of exports inside the sync entry
of plugins as unused exports and removing them. Then `__kbnBootstrap__`
can't be found
- [x] Rebalance @kbn/optimizer pickMaxWorkerCount
- [x] Re-open the issue to fix sass-warnings
[elastic#190345](elastic#190345) or downgrade
sass-loader to v10
- [x] Remove previous esm no parse rules
- [x] Confirm esm support is working
- [x] Confirm console override is needed
- [x] Confirm react prod builds on ui shared deps for distributable
- [x] Remove customization for
[xyflow](https://github.com/xyflow/xyflow) from webpack configs
- [x] Clean all the code
- [x] Make sure collected metrics from stats are still aligned with what
we were collecting before; also verify if the modules used for optimizer
caches etc are well generated (@kbn/node-libs-browser)
- [x] Fix watch performance

---------

Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>
Co-authored-by: Brad White <brad.white@elastic.co>
(cherry picked from commit 203bc28)

# Conflicts:
#	.github/CODEOWNERS
#	package.json
#	packages/kbn-eslint-plugin-imports/src/rules/no_group_crossing_imports.ts
#	packages/kbn-monaco/BUILD.bazel
#	packages/kbn-node-libs-browser-webpack-plugin/jest.config.js
#	packages/kbn-optimizer/limits.yml
#	packages/kbn-optimizer/src/worker/theme_loader.ts
#	packages/kbn-optimizer/src/worker/webpack.config.ts
#	packages/kbn-plugin-helpers/src/integration_tests/build.test.ts
#	packages/kbn-storybook/src/webpack.config.ts
#	packages/kbn-ui-shared-deps-npm/BUILD.bazel
#	packages/kbn-ui-shared-deps-npm/webpack.config.js
#	packages/kbn-ui-shared-deps-src/src/definitions.js
#	renovate.json
#	src/platform/packages/private/kbn-ui-shared-deps-src/BUILD.bazel
#	src/platform/plugins/shared/discover/.storybook/discover.webpack.ts
#	src/platform/plugins/shared/discover/.storybook/main.ts
#	src/plugins/discover/.storybook/discover.webpack.ts
#	src/plugins/discover/.storybook/main.js
#	src/plugins/discover/.storybook/main.ts
#	tsconfig.base.json
#	x-pack/platform/plugins/shared/fleet/package.json
#	x-pack/platform/plugins/shared/osquery/package.json
#	x-pack/plugins/canvas/shareable_runtime/webpack.config.js
#	x-pack/plugins/canvas/storybook/canvas_webpack.ts
#	x-pack/plugins/security_solution/package.json
#	x-pack/solutions/observability/plugins/apm/ftr_e2e/package.json
#	x-pack/solutions/observability/plugins/profiling/e2e/package.json
#	x-pack/solutions/security/packages/kbn-cloud-security-posture/graph/.storybook/main.ts
#	x-pack/test/security_solution_cypress/package.json
#	yarn.lock
@mistic
Copy link
Member Author

mistic commented Feb 14, 2025

💚 All backports created successfully

Status Branch Result
8.16

Note: Successful backport PRs will be merged automatically after passing CI.

Questions ?

Please refer to the Backport tool documentation

mistic added a commit that referenced this pull request Feb 14, 2025
# Backport

This will backport the following commits from `main` to `9.0`:
- [chore(NA): upgrade to webpack 5
(#191106)](#191106)

<!--- Backport version: 9.6.4 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sorenlouv/backport)

<!--BACKPORT [{"author":{"name":"Tiago
Costa","email":"tiago.costa@elastic.co"},"sourceCommit":{"committedDate":"2025-02-14T03:01:36Z","message":"chore(NA):
upgrade to webpack 5 (#191106)\n\n### Summary\r\n\r\n- Closes
#89741\r\n\r\nThis PR contains the resulting work of a massive effort
that ports our\r\non top bundler abstraction (called @kbn/optimizer)
from Webpack v4 into\r\nWebpack v5. It's essential in terms of long term
maintenance since v4\r\nwas not receiving updates any longer but will
also unblock some new\r\nfeatures that could be beneficial for our
future DevEx endeavours.\r\n\r\nNext you can find a small list of all
the accomplished tasks on this\r\njourney.\r\n\r\n### Completed
Tasks\r\n- [x] Upgrade dependencies to match the ones on webpack v5\r\n-
[x] Fix null-loader usages\r\n- [x] Fix raw-loader usages\r\n- [x] Fix
file-loader usages\r\n- [x] Fix url-loader usages\r\n- [x] Fix
`@kbn/optimizer-webpack-helpers` to support webpack v5 \r\n- [x] Adopt
previous webpack v4 polyfill-all strategy
with\r\nnode-polyfill-webpack-plugin\r\n- [x] Fix theme-loader on
@kbn/optimizer\r\n- [x] Migrate configurations and ad-hoc loader options
on all webpack\r\nconfigs from v4 to v5\r\n- [x] Fix @kbn/test jest
resolver for file-loader cases\r\n- [x] Migrate public-path loader on
UiSharedDeps\r\n- [x] Fix all usages of webpack-merge\r\n- [x] Migrate
BundleRemoteModule\r\n- [x] Migrate BundleRemotesPlugin\r\n- [x]
Correctly migrate PopulateBundleCachePlugin\r\n- [x] Correctly migrate
BundleMetricsPlugin\r\n- [x] Check if the profiling plugins still work
(--profile flag)\r\n- [x] Recover if possible the previous webpack v4
cacheGroup chunks\r\nrename to something like
`data.plugin.chunk.0.js`\r\n- [x] Run `/ci` and make sure we get our
first green CI, otherwise work\r\non the errors until we do\r\n- [x]
Profile and solve bottlenecks until we get a cold build\r\nperformance
similar to the one we had on webpack v4
(`node\r\nscripts/build_kibana_platform_plugins --no-cache`).\r\n- [x]
OpenSSL Legacy Warnings: try to remove `--openssl-legacy-provider\r\n`
flags\r\n- [x] Add Webpack to Renovate config\r\n- [x] Explore removing
`NodePolyfillPlugin`\r\n([here](https://www.npmjs.com/package/node-polyfill-webpack-plugin))
and\r\nadd each polyfill needed individually per each webpack config to
check\r\nif we get smaller bundles. If we do it's better to go with the
case by\r\ncase need approach instead of deploying a bunch of polyfills
with\r\nNodePolyfillPlugin. As another alternative, create a custom
smaller\r\nplugin with only the union of all needed polyfills.\r\n- [x]
Evaluate if we want to touch the resolutions on mainFields
and\r\nconditionNames\r\n- [x] Understand why `@import
'src/core/public/mixins'` does not work\r\nanymore (not a problem, we
should use relative paths anyway but we want\r\nto track why it changed
from v4 to v5)\r\n- [x] BUG: Child compilers are having errors hidden
and/or changed from\r\nerror to warning\r\n- [x] Fix license check
for\r\n[Artistic-2.0](https://spdx.org/licenses/Artistic-2.0.html) is
the\r\nlicense
for\r\n[domain-browser](https://github.com/bevry/domain-browser?tab=License-1-ov-file).\r\nThis
package is a dependency
of\r\n[NodePolyfillPlugin](https://www.npmjs.com/package/node-polyfill-webpack-plugin).\r\nArtistic
2.0 license is [classified
as\r\nyellow](https://github.com/elastic/open-source/blob/main/elastic-product-policy.md#yellow-list)\r\nand
should only be used for dev dependencies.\r\n- [x] Make sure
`resourceQuery: { not: /raw/ }` is not necessary on\r\nother webpack
configs like storybook one\r\n- [x] Find what is being wrongly removed
by usedExports optimization;\r\nhint: I believe it is identifying a lot
of exports inside the sync entry\r\nof plugins as unused exports and
removing them. Then `__kbnBootstrap__`\r\ncan't be found\r\n- [x]
Rebalance @kbn/optimizer pickMaxWorkerCount\r\n- [x] Re-open the issue
to fix
sass-warnings\r\n[#190345](#190345)
or downgrade\r\nsass-loader to v10\r\n- [x] Remove previous esm no parse
rules\r\n- [x] Confirm esm support is working\r\n- [x] Confirm console
override is needed\r\n- [x] Confirm react prod builds on ui shared deps
for distributable\r\n- [x] Remove customization
for\r\n[xyflow](https://github.com/xyflow/xyflow) from webpack
configs\r\n- [x] Clean all the code\r\n- [x] Make sure collected metrics
from stats are still aligned with what\r\nwe were collecting before;
also verify if the modules used for optimizer\r\ncaches etc are well
generated (@kbn/node-libs-browser)\r\n- [x] Fix watch
performance\r\n\r\n---------\r\n\r\nCo-authored-by: kibanamachine
<42973632+kibanamachine@users.noreply.github.com>\r\nCo-authored-by:
Brad White
<brad.white@elastic.co>","sha":"203bc284781cc830049b3f7948c8fcafa8b7d9a1","branchLabelMapping":{"^v9.1.0$":"main","^v8.19.0$":"8.x","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["chore","Team:Operations","release_note:skip","Team:Fleet","v9.0.0","backport:all-open","ci:build-webpack-bundle-analyzer","Team:obs-ux-infra_services","v9.1.0"],"title":"chore(NA):
upgrade to webpack
5","number":191106,"url":"https://github.com/elastic/kibana/pull/191106","mergeCommit":{"message":"chore(NA):
upgrade to webpack 5 (#191106)\n\n### Summary\r\n\r\n- Closes
#89741\r\n\r\nThis PR contains the resulting work of a massive effort
that ports our\r\non top bundler abstraction (called @kbn/optimizer)
from Webpack v4 into\r\nWebpack v5. It's essential in terms of long term
maintenance since v4\r\nwas not receiving updates any longer but will
also unblock some new\r\nfeatures that could be beneficial for our
future DevEx endeavours.\r\n\r\nNext you can find a small list of all
the accomplished tasks on this\r\njourney.\r\n\r\n### Completed
Tasks\r\n- [x] Upgrade dependencies to match the ones on webpack v5\r\n-
[x] Fix null-loader usages\r\n- [x] Fix raw-loader usages\r\n- [x] Fix
file-loader usages\r\n- [x] Fix url-loader usages\r\n- [x] Fix
`@kbn/optimizer-webpack-helpers` to support webpack v5 \r\n- [x] Adopt
previous webpack v4 polyfill-all strategy
with\r\nnode-polyfill-webpack-plugin\r\n- [x] Fix theme-loader on
@kbn/optimizer\r\n- [x] Migrate configurations and ad-hoc loader options
on all webpack\r\nconfigs from v4 to v5\r\n- [x] Fix @kbn/test jest
resolver for file-loader cases\r\n- [x] Migrate public-path loader on
UiSharedDeps\r\n- [x] Fix all usages of webpack-merge\r\n- [x] Migrate
BundleRemoteModule\r\n- [x] Migrate BundleRemotesPlugin\r\n- [x]
Correctly migrate PopulateBundleCachePlugin\r\n- [x] Correctly migrate
BundleMetricsPlugin\r\n- [x] Check if the profiling plugins still work
(--profile flag)\r\n- [x] Recover if possible the previous webpack v4
cacheGroup chunks\r\nrename to something like
`data.plugin.chunk.0.js`\r\n- [x] Run `/ci` and make sure we get our
first green CI, otherwise work\r\non the errors until we do\r\n- [x]
Profile and solve bottlenecks until we get a cold build\r\nperformance
similar to the one we had on webpack v4
(`node\r\nscripts/build_kibana_platform_plugins --no-cache`).\r\n- [x]
OpenSSL Legacy Warnings: try to remove `--openssl-legacy-provider\r\n`
flags\r\n- [x] Add Webpack to Renovate config\r\n- [x] Explore removing
`NodePolyfillPlugin`\r\n([here](https://www.npmjs.com/package/node-polyfill-webpack-plugin))
and\r\nadd each polyfill needed individually per each webpack config to
check\r\nif we get smaller bundles. If we do it's better to go with the
case by\r\ncase need approach instead of deploying a bunch of polyfills
with\r\nNodePolyfillPlugin. As another alternative, create a custom
smaller\r\nplugin with only the union of all needed polyfills.\r\n- [x]
Evaluate if we want to touch the resolutions on mainFields
and\r\nconditionNames\r\n- [x] Understand why `@import
'src/core/public/mixins'` does not work\r\nanymore (not a problem, we
should use relative paths anyway but we want\r\nto track why it changed
from v4 to v5)\r\n- [x] BUG: Child compilers are having errors hidden
and/or changed from\r\nerror to warning\r\n- [x] Fix license check
for\r\n[Artistic-2.0](https://spdx.org/licenses/Artistic-2.0.html) is
the\r\nlicense
for\r\n[domain-browser](https://github.com/bevry/domain-browser?tab=License-1-ov-file).\r\nThis
package is a dependency
of\r\n[NodePolyfillPlugin](https://www.npmjs.com/package/node-polyfill-webpack-plugin).\r\nArtistic
2.0 license is [classified
as\r\nyellow](https://github.com/elastic/open-source/blob/main/elastic-product-policy.md#yellow-list)\r\nand
should only be used for dev dependencies.\r\n- [x] Make sure
`resourceQuery: { not: /raw/ }` is not necessary on\r\nother webpack
configs like storybook one\r\n- [x] Find what is being wrongly removed
by usedExports optimization;\r\nhint: I believe it is identifying a lot
of exports inside the sync entry\r\nof plugins as unused exports and
removing them. Then `__kbnBootstrap__`\r\ncan't be found\r\n- [x]
Rebalance @kbn/optimizer pickMaxWorkerCount\r\n- [x] Re-open the issue
to fix
sass-warnings\r\n[#190345](#190345)
or downgrade\r\nsass-loader to v10\r\n- [x] Remove previous esm no parse
rules\r\n- [x] Confirm esm support is working\r\n- [x] Confirm console
override is needed\r\n- [x] Confirm react prod builds on ui shared deps
for distributable\r\n- [x] Remove customization
for\r\n[xyflow](https://github.com/xyflow/xyflow) from webpack
configs\r\n- [x] Clean all the code\r\n- [x] Make sure collected metrics
from stats are still aligned with what\r\nwe were collecting before;
also verify if the modules used for optimizer\r\ncaches etc are well
generated (@kbn/node-libs-browser)\r\n- [x] Fix watch
performance\r\n\r\n---------\r\n\r\nCo-authored-by: kibanamachine
<42973632+kibanamachine@users.noreply.github.com>\r\nCo-authored-by:
Brad White
<brad.white@elastic.co>","sha":"203bc284781cc830049b3f7948c8fcafa8b7d9a1"}},"sourceBranch":"main","suggestedTargetBranches":["9.0"],"targetPullRequestStates":[{"branch":"9.0","label":"v9.0.0","branchLabelMappingKey":"^v(\\d+).(\\d+).\\d+$","isSourceBranch":false,"state":"NOT_CREATED"},{"branch":"main","label":"v9.1.0","branchLabelMappingKey":"^v9.1.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/191106","number":191106,"mergeCommit":{"message":"chore(NA):
upgrade to webpack 5 (#191106)\n\n### Summary\r\n\r\n- Closes
#89741\r\n\r\nThis PR contains the resulting work of a massive effort
that ports our\r\non top bundler abstraction (called @kbn/optimizer)
from Webpack v4 into\r\nWebpack v5. It's essential in terms of long term
maintenance since v4\r\nwas not receiving updates any longer but will
also unblock some new\r\nfeatures that could be beneficial for our
future DevEx endeavours.\r\n\r\nNext you can find a small list of all
the accomplished tasks on this\r\njourney.\r\n\r\n### Completed
Tasks\r\n- [x] Upgrade dependencies to match the ones on webpack v5\r\n-
[x] Fix null-loader usages\r\n- [x] Fix raw-loader usages\r\n- [x] Fix
file-loader usages\r\n- [x] Fix url-loader usages\r\n- [x] Fix
`@kbn/optimizer-webpack-helpers` to support webpack v5 \r\n- [x] Adopt
previous webpack v4 polyfill-all strategy
with\r\nnode-polyfill-webpack-plugin\r\n- [x] Fix theme-loader on
@kbn/optimizer\r\n- [x] Migrate configurations and ad-hoc loader options
on all webpack\r\nconfigs from v4 to v5\r\n- [x] Fix @kbn/test jest
resolver for file-loader cases\r\n- [x] Migrate public-path loader on
UiSharedDeps\r\n- [x] Fix all usages of webpack-merge\r\n- [x] Migrate
BundleRemoteModule\r\n- [x] Migrate BundleRemotesPlugin\r\n- [x]
Correctly migrate PopulateBundleCachePlugin\r\n- [x] Correctly migrate
BundleMetricsPlugin\r\n- [x] Check if the profiling plugins still work
(--profile flag)\r\n- [x] Recover if possible the previous webpack v4
cacheGroup chunks\r\nrename to something like
`data.plugin.chunk.0.js`\r\n- [x] Run `/ci` and make sure we get our
first green CI, otherwise work\r\non the errors until we do\r\n- [x]
Profile and solve bottlenecks until we get a cold build\r\nperformance
similar to the one we had on webpack v4
(`node\r\nscripts/build_kibana_platform_plugins --no-cache`).\r\n- [x]
OpenSSL Legacy Warnings: try to remove `--openssl-legacy-provider\r\n`
flags\r\n- [x] Add Webpack to Renovate config\r\n- [x] Explore removing
`NodePolyfillPlugin`\r\n([here](https://www.npmjs.com/package/node-polyfill-webpack-plugin))
and\r\nadd each polyfill needed individually per each webpack config to
check\r\nif we get smaller bundles. If we do it's better to go with the
case by\r\ncase need approach instead of deploying a bunch of polyfills
with\r\nNodePolyfillPlugin. As another alternative, create a custom
smaller\r\nplugin with only the union of all needed polyfills.\r\n- [x]
Evaluate if we want to touch the resolutions on mainFields
and\r\nconditionNames\r\n- [x] Understand why `@import
'src/core/public/mixins'` does not work\r\nanymore (not a problem, we
should use relative paths anyway but we want\r\nto track why it changed
from v4 to v5)\r\n- [x] BUG: Child compilers are having errors hidden
and/or changed from\r\nerror to warning\r\n- [x] Fix license check
for\r\n[Artistic-2.0](https://spdx.org/licenses/Artistic-2.0.html) is
the\r\nlicense
for\r\n[domain-browser](https://github.com/bevry/domain-browser?tab=License-1-ov-file).\r\nThis
package is a dependency
of\r\n[NodePolyfillPlugin](https://www.npmjs.com/package/node-polyfill-webpack-plugin).\r\nArtistic
2.0 license is [classified
as\r\nyellow](https://github.com/elastic/open-source/blob/main/elastic-product-policy.md#yellow-list)\r\nand
should only be used for dev dependencies.\r\n- [x] Make sure
`resourceQuery: { not: /raw/ }` is not necessary on\r\nother webpack
configs like storybook one\r\n- [x] Find what is being wrongly removed
by usedExports optimization;\r\nhint: I believe it is identifying a lot
of exports inside the sync entry\r\nof plugins as unused exports and
removing them. Then `__kbnBootstrap__`\r\ncan't be found\r\n- [x]
Rebalance @kbn/optimizer pickMaxWorkerCount\r\n- [x] Re-open the issue
to fix
sass-warnings\r\n[#190345](#190345)
or downgrade\r\nsass-loader to v10\r\n- [x] Remove previous esm no parse
rules\r\n- [x] Confirm esm support is working\r\n- [x] Confirm console
override is needed\r\n- [x] Confirm react prod builds on ui shared deps
for distributable\r\n- [x] Remove customization
for\r\n[xyflow](https://github.com/xyflow/xyflow) from webpack
configs\r\n- [x] Clean all the code\r\n- [x] Make sure collected metrics
from stats are still aligned with what\r\nwe were collecting before;
also verify if the modules used for optimizer\r\ncaches etc are well
generated (@kbn/node-libs-browser)\r\n- [x] Fix watch
performance\r\n\r\n---------\r\n\r\nCo-authored-by: kibanamachine
<42973632+kibanamachine@users.noreply.github.com>\r\nCo-authored-by:
Brad White
<brad.white@elastic.co>","sha":"203bc284781cc830049b3f7948c8fcafa8b7d9a1"}}]}]
BACKPORT-->
mistic added a commit that referenced this pull request Feb 14, 2025
# Backport

This will backport the following commits from `main` to `8.x`:
- [chore(NA): upgrade to webpack 5
(#191106)](#191106)

<!--- Backport version: 9.6.4 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sorenlouv/backport)

<!--BACKPORT [{"author":{"name":"Tiago
Costa","email":"tiago.costa@elastic.co"},"sourceCommit":{"committedDate":"2025-02-14T03:01:36Z","message":"chore(NA):
upgrade to webpack 5 (#191106)\n\n### Summary\r\n\r\n- Closes
#89741\r\n\r\nThis PR contains the resulting work of a massive effort
that ports our\r\non top bundler abstraction (called @kbn/optimizer)
from Webpack v4 into\r\nWebpack v5. It's essential in terms of long term
maintenance since v4\r\nwas not receiving updates any longer but will
also unblock some new\r\nfeatures that could be beneficial for our
future DevEx endeavours.\r\n\r\nNext you can find a small list of all
the accomplished tasks on this\r\njourney.\r\n\r\n### Completed
Tasks\r\n- [x] Upgrade dependencies to match the ones on webpack v5\r\n-
[x] Fix null-loader usages\r\n- [x] Fix raw-loader usages\r\n- [x] Fix
file-loader usages\r\n- [x] Fix url-loader usages\r\n- [x] Fix
`@kbn/optimizer-webpack-helpers` to support webpack v5 \r\n- [x] Adopt
previous webpack v4 polyfill-all strategy
with\r\nnode-polyfill-webpack-plugin\r\n- [x] Fix theme-loader on
@kbn/optimizer\r\n- [x] Migrate configurations and ad-hoc loader options
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BundleRemoteModule\r\n- [x] Migrate BundleRemotesPlugin\r\n- [x]
Correctly migrate PopulateBundleCachePlugin\r\n- [x] Correctly migrate
BundleMetricsPlugin\r\n- [x] Check if the profiling plugins still work
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cacheGroup chunks\r\nrename to something like
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first green CI, otherwise work\r\non the errors until we do\r\n- [x]
Profile and solve bottlenecks until we get a cold build\r\nperformance
similar to the one we had on webpack v4
(`node\r\nscripts/build_kibana_platform_plugins --no-cache`).\r\n- [x]
OpenSSL Legacy Warnings: try to remove `--openssl-legacy-provider\r\n`
flags\r\n- [x] Add Webpack to Renovate config\r\n- [x] Explore removing
`NodePolyfillPlugin`\r\n([here](https://www.npmjs.com/package/node-polyfill-webpack-plugin))
and\r\nadd each polyfill needed individually per each webpack config to
check\r\nif we get smaller bundles. If we do it's better to go with the
case by\r\ncase need approach instead of deploying a bunch of polyfills
with\r\nNodePolyfillPlugin. As another alternative, create a custom
smaller\r\nplugin with only the union of all needed polyfills.\r\n- [x]
Evaluate if we want to touch the resolutions on mainFields
and\r\nconditionNames\r\n- [x] Understand why `@import
'src/core/public/mixins'` does not work\r\nanymore (not a problem, we
should use relative paths anyway but we want\r\nto track why it changed
from v4 to v5)\r\n- [x] BUG: Child compilers are having errors hidden
and/or changed from\r\nerror to warning\r\n- [x] Fix license check
for\r\n[Artistic-2.0](https://spdx.org/licenses/Artistic-2.0.html) is
the\r\nlicense
for\r\n[domain-browser](https://github.com/bevry/domain-browser?tab=License-1-ov-file).\r\nThis
package is a dependency
of\r\n[NodePolyfillPlugin](https://www.npmjs.com/package/node-polyfill-webpack-plugin).\r\nArtistic
2.0 license is [classified
as\r\nyellow](https://github.com/elastic/open-source/blob/main/elastic-product-policy.md#yellow-list)\r\nand
should only be used for dev dependencies.\r\n- [x] Make sure
`resourceQuery: { not: /raw/ }` is not necessary on\r\nother webpack
configs like storybook one\r\n- [x] Find what is being wrongly removed
by usedExports optimization;\r\nhint: I believe it is identifying a lot
of exports inside the sync entry\r\nof plugins as unused exports and
removing them. Then `__kbnBootstrap__`\r\ncan't be found\r\n- [x]
Rebalance @kbn/optimizer pickMaxWorkerCount\r\n- [x] Re-open the issue
to fix
sass-warnings\r\n[#190345](#190345)
or downgrade\r\nsass-loader to v10\r\n- [x] Remove previous esm no parse
rules\r\n- [x] Confirm esm support is working\r\n- [x] Confirm console
override is needed\r\n- [x] Confirm react prod builds on ui shared deps
for distributable\r\n- [x] Remove customization
for\r\n[xyflow](https://github.com/xyflow/xyflow) from webpack
configs\r\n- [x] Clean all the code\r\n- [x] Make sure collected metrics
from stats are still aligned with what\r\nwe were collecting before;
also verify if the modules used for optimizer\r\ncaches etc are well
generated (@kbn/node-libs-browser)\r\n- [x] Fix watch
performance\r\n\r\n---------\r\n\r\nCo-authored-by: kibanamachine
<42973632+kibanamachine@users.noreply.github.com>\r\nCo-authored-by:
Brad White
<brad.white@elastic.co>","sha":"203bc284781cc830049b3f7948c8fcafa8b7d9a1","branchLabelMapping":{"^v9.1.0$":"main","^v8.19.0$":"8.x","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["chore","Team:Operations","release_note:skip","Team:Fleet","v9.0.0","backport:all-open","ci:build-webpack-bundle-analyzer","Team:obs-ux-infra_services","v9.1.0"],"title":"chore(NA):
upgrade to webpack
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upgrade to webpack 5 (#191106)\n\n### Summary\r\n\r\n- Closes
#89741\r\n\r\nThis PR contains the resulting work of a massive effort
that ports our\r\non top bundler abstraction (called @kbn/optimizer)
from Webpack v4 into\r\nWebpack v5. It's essential in terms of long term
maintenance since v4\r\nwas not receiving updates any longer but will
also unblock some new\r\nfeatures that could be beneficial for our
future DevEx endeavours.\r\n\r\nNext you can find a small list of all
the accomplished tasks on this\r\njourney.\r\n\r\n### Completed
Tasks\r\n- [x] Upgrade dependencies to match the ones on webpack v5\r\n-
[x] Fix null-loader usages\r\n- [x] Fix raw-loader usages\r\n- [x] Fix
file-loader usages\r\n- [x] Fix url-loader usages\r\n- [x] Fix
`@kbn/optimizer-webpack-helpers` to support webpack v5 \r\n- [x] Adopt
previous webpack v4 polyfill-all strategy
with\r\nnode-polyfill-webpack-plugin\r\n- [x] Fix theme-loader on
@kbn/optimizer\r\n- [x] Migrate configurations and ad-hoc loader options
on all webpack\r\nconfigs from v4 to v5\r\n- [x] Fix @kbn/test jest
resolver for file-loader cases\r\n- [x] Migrate public-path loader on
UiSharedDeps\r\n- [x] Fix all usages of webpack-merge\r\n- [x] Migrate
BundleRemoteModule\r\n- [x] Migrate BundleRemotesPlugin\r\n- [x]
Correctly migrate PopulateBundleCachePlugin\r\n- [x] Correctly migrate
BundleMetricsPlugin\r\n- [x] Check if the profiling plugins still work
(--profile flag)\r\n- [x] Recover if possible the previous webpack v4
cacheGroup chunks\r\nrename to something like
`data.plugin.chunk.0.js`\r\n- [x] Run `/ci` and make sure we get our
first green CI, otherwise work\r\non the errors until we do\r\n- [x]
Profile and solve bottlenecks until we get a cold build\r\nperformance
similar to the one we had on webpack v4
(`node\r\nscripts/build_kibana_platform_plugins --no-cache`).\r\n- [x]
OpenSSL Legacy Warnings: try to remove `--openssl-legacy-provider\r\n`
flags\r\n- [x] Add Webpack to Renovate config\r\n- [x] Explore removing
`NodePolyfillPlugin`\r\n([here](https://www.npmjs.com/package/node-polyfill-webpack-plugin))
and\r\nadd each polyfill needed individually per each webpack config to
check\r\nif we get smaller bundles. If we do it's better to go with the
case by\r\ncase need approach instead of deploying a bunch of polyfills
with\r\nNodePolyfillPlugin. As another alternative, create a custom
smaller\r\nplugin with only the union of all needed polyfills.\r\n- [x]
Evaluate if we want to touch the resolutions on mainFields
and\r\nconditionNames\r\n- [x] Understand why `@import
'src/core/public/mixins'` does not work\r\nanymore (not a problem, we
should use relative paths anyway but we want\r\nto track why it changed
from v4 to v5)\r\n- [x] BUG: Child compilers are having errors hidden
and/or changed from\r\nerror to warning\r\n- [x] Fix license check
for\r\n[Artistic-2.0](https://spdx.org/licenses/Artistic-2.0.html) is
the\r\nlicense
for\r\n[domain-browser](https://github.com/bevry/domain-browser?tab=License-1-ov-file).\r\nThis
package is a dependency
of\r\n[NodePolyfillPlugin](https://www.npmjs.com/package/node-polyfill-webpack-plugin).\r\nArtistic
2.0 license is [classified
as\r\nyellow](https://github.com/elastic/open-source/blob/main/elastic-product-policy.md#yellow-list)\r\nand
should only be used for dev dependencies.\r\n- [x] Make sure
`resourceQuery: { not: /raw/ }` is not necessary on\r\nother webpack
configs like storybook one\r\n- [x] Find what is being wrongly removed
by usedExports optimization;\r\nhint: I believe it is identifying a lot
of exports inside the sync entry\r\nof plugins as unused exports and
removing them. Then `__kbnBootstrap__`\r\ncan't be found\r\n- [x]
Rebalance @kbn/optimizer pickMaxWorkerCount\r\n- [x] Re-open the issue
to fix
sass-warnings\r\n[#190345](#190345)
or downgrade\r\nsass-loader to v10\r\n- [x] Remove previous esm no parse
rules\r\n- [x] Confirm esm support is working\r\n- [x] Confirm console
override is needed\r\n- [x] Confirm react prod builds on ui shared deps
for distributable\r\n- [x] Remove customization
for\r\n[xyflow](https://github.com/xyflow/xyflow) from webpack
configs\r\n- [x] Clean all the code\r\n- [x] Make sure collected metrics
from stats are still aligned with what\r\nwe were collecting before;
also verify if the modules used for optimizer\r\ncaches etc are well
generated (@kbn/node-libs-browser)\r\n- [x] Fix watch
performance\r\n\r\n---------\r\n\r\nCo-authored-by: kibanamachine
<42973632+kibanamachine@users.noreply.github.com>\r\nCo-authored-by:
Brad White
<brad.white@elastic.co>","sha":"203bc284781cc830049b3f7948c8fcafa8b7d9a1"}},"sourceBranch":"main","suggestedTargetBranches":[],"targetPullRequestStates":[{"branch":"9.0","label":"v9.0.0","branchLabelMappingKey":"^v(\\d+).(\\d+).\\d+$","isSourceBranch":false,"url":"https://github.com/elastic/kibana/pull/211145","number":211145,"state":"OPEN"},{"branch":"main","label":"v9.1.0","branchLabelMappingKey":"^v9.1.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/191106","number":191106,"mergeCommit":{"message":"chore(NA):
upgrade to webpack 5 (#191106)\n\n### Summary\r\n\r\n- Closes
#89741\r\n\r\nThis PR contains the resulting work of a massive effort
that ports our\r\non top bundler abstraction (called @kbn/optimizer)
from Webpack v4 into\r\nWebpack v5. It's essential in terms of long term
maintenance since v4\r\nwas not receiving updates any longer but will
also unblock some new\r\nfeatures that could be beneficial for our
future DevEx endeavours.\r\n\r\nNext you can find a small list of all
the accomplished tasks on this\r\njourney.\r\n\r\n### Completed
Tasks\r\n- [x] Upgrade dependencies to match the ones on webpack v5\r\n-
[x] Fix null-loader usages\r\n- [x] Fix raw-loader usages\r\n- [x] Fix
file-loader usages\r\n- [x] Fix url-loader usages\r\n- [x] Fix
`@kbn/optimizer-webpack-helpers` to support webpack v5 \r\n- [x] Adopt
previous webpack v4 polyfill-all strategy
with\r\nnode-polyfill-webpack-plugin\r\n- [x] Fix theme-loader on
@kbn/optimizer\r\n- [x] Migrate configurations and ad-hoc loader options
on all webpack\r\nconfigs from v4 to v5\r\n- [x] Fix @kbn/test jest
resolver for file-loader cases\r\n- [x] Migrate public-path loader on
UiSharedDeps\r\n- [x] Fix all usages of webpack-merge\r\n- [x] Migrate
BundleRemoteModule\r\n- [x] Migrate BundleRemotesPlugin\r\n- [x]
Correctly migrate PopulateBundleCachePlugin\r\n- [x] Correctly migrate
BundleMetricsPlugin\r\n- [x] Check if the profiling plugins still work
(--profile flag)\r\n- [x] Recover if possible the previous webpack v4
cacheGroup chunks\r\nrename to something like
`data.plugin.chunk.0.js`\r\n- [x] Run `/ci` and make sure we get our
first green CI, otherwise work\r\non the errors until we do\r\n- [x]
Profile and solve bottlenecks until we get a cold build\r\nperformance
similar to the one we had on webpack v4
(`node\r\nscripts/build_kibana_platform_plugins --no-cache`).\r\n- [x]
OpenSSL Legacy Warnings: try to remove `--openssl-legacy-provider\r\n`
flags\r\n- [x] Add Webpack to Renovate config\r\n- [x] Explore removing
`NodePolyfillPlugin`\r\n([here](https://www.npmjs.com/package/node-polyfill-webpack-plugin))
and\r\nadd each polyfill needed individually per each webpack config to
check\r\nif we get smaller bundles. If we do it's better to go with the
case by\r\ncase need approach instead of deploying a bunch of polyfills
with\r\nNodePolyfillPlugin. As another alternative, create a custom
smaller\r\nplugin with only the union of all needed polyfills.\r\n- [x]
Evaluate if we want to touch the resolutions on mainFields
and\r\nconditionNames\r\n- [x] Understand why `@import
'src/core/public/mixins'` does not work\r\nanymore (not a problem, we
should use relative paths anyway but we want\r\nto track why it changed
from v4 to v5)\r\n- [x] BUG: Child compilers are having errors hidden
and/or changed from\r\nerror to warning\r\n- [x] Fix license check
for\r\n[Artistic-2.0](https://spdx.org/licenses/Artistic-2.0.html) is
the\r\nlicense
for\r\n[domain-browser](https://github.com/bevry/domain-browser?tab=License-1-ov-file).\r\nThis
package is a dependency
of\r\n[NodePolyfillPlugin](https://www.npmjs.com/package/node-polyfill-webpack-plugin).\r\nArtistic
2.0 license is [classified
as\r\nyellow](https://github.com/elastic/open-source/blob/main/elastic-product-policy.md#yellow-list)\r\nand
should only be used for dev dependencies.\r\n- [x] Make sure
`resourceQuery: { not: /raw/ }` is not necessary on\r\nother webpack
configs like storybook one\r\n- [x] Find what is being wrongly removed
by usedExports optimization;\r\nhint: I believe it is identifying a lot
of exports inside the sync entry\r\nof plugins as unused exports and
removing them. Then `__kbnBootstrap__`\r\ncan't be found\r\n- [x]
Rebalance @kbn/optimizer pickMaxWorkerCount\r\n- [x] Re-open the issue
to fix
sass-warnings\r\n[#190345](#190345)
or downgrade\r\nsass-loader to v10\r\n- [x] Remove previous esm no parse
rules\r\n- [x] Confirm esm support is working\r\n- [x] Confirm console
override is needed\r\n- [x] Confirm react prod builds on ui shared deps
for distributable\r\n- [x] Remove customization
for\r\n[xyflow](https://github.com/xyflow/xyflow) from webpack
configs\r\n- [x] Clean all the code\r\n- [x] Make sure collected metrics
from stats are still aligned with what\r\nwe were collecting before;
also verify if the modules used for optimizer\r\ncaches etc are well
generated (@kbn/node-libs-browser)\r\n- [x] Fix watch
performance\r\n\r\n---------\r\n\r\nCo-authored-by: kibanamachine
<42973632+kibanamachine@users.noreply.github.com>\r\nCo-authored-by:
Brad White
<brad.white@elastic.co>","sha":"203bc284781cc830049b3f7948c8fcafa8b7d9a1"}}]}]
BACKPORT-->

---------

Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>
mistic added a commit that referenced this pull request Feb 14, 2025
# Backport

This will backport the following commits from `main` to `8.18`:
- [chore(NA): upgrade to webpack 5
(#191106)](#191106)

<!--- Backport version: 9.6.4 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sorenlouv/backport)

<!--BACKPORT [{"author":{"name":"Tiago
Costa","email":"tiago.costa@elastic.co"},"sourceCommit":{"committedDate":"2025-02-14T03:01:36Z","message":"chore(NA):
upgrade to webpack 5 (#191106)\n\n### Summary\r\n\r\n- Closes
#89741\r\n\r\nThis PR contains the resulting work of a massive effort
that ports our\r\non top bundler abstraction (called @kbn/optimizer)
from Webpack v4 into\r\nWebpack v5. It's essential in terms of long term
maintenance since v4\r\nwas not receiving updates any longer but will
also unblock some new\r\nfeatures that could be beneficial for our
future DevEx endeavours.\r\n\r\nNext you can find a small list of all
the accomplished tasks on this\r\njourney.\r\n\r\n### Completed
Tasks\r\n- [x] Upgrade dependencies to match the ones on webpack v5\r\n-
[x] Fix null-loader usages\r\n- [x] Fix raw-loader usages\r\n- [x] Fix
file-loader usages\r\n- [x] Fix url-loader usages\r\n- [x] Fix
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OpenSSL Legacy Warnings: try to remove `--openssl-legacy-provider\r\n`
flags\r\n- [x] Add Webpack to Renovate config\r\n- [x] Explore removing
`NodePolyfillPlugin`\r\n([here](https://www.npmjs.com/package/node-polyfill-webpack-plugin))
and\r\nadd each polyfill needed individually per each webpack config to
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case by\r\ncase need approach instead of deploying a bunch of polyfills
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and/or changed from\r\nerror to warning\r\n- [x] Fix license check
for\r\n[Artistic-2.0](https://spdx.org/licenses/Artistic-2.0.html) is
the\r\nlicense
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package is a dependency
of\r\n[NodePolyfillPlugin](https://www.npmjs.com/package/node-polyfill-webpack-plugin).\r\nArtistic
2.0 license is [classified
as\r\nyellow](https://github.com/elastic/open-source/blob/main/elastic-product-policy.md#yellow-list)\r\nand
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by usedExports optimization;\r\nhint: I believe it is identifying a lot
of exports inside the sync entry\r\nof plugins as unused exports and
removing them. Then `__kbnBootstrap__`\r\ncan't be found\r\n- [x]
Rebalance @kbn/optimizer pickMaxWorkerCount\r\n- [x] Re-open the issue
to fix
sass-warnings\r\n[#190345](#190345)
or downgrade\r\nsass-loader to v10\r\n- [x] Remove previous esm no parse
rules\r\n- [x] Confirm esm support is working\r\n- [x] Confirm console
override is needed\r\n- [x] Confirm react prod builds on ui shared deps
for distributable\r\n- [x] Remove customization
for\r\n[xyflow](https://github.com/xyflow/xyflow) from webpack
configs\r\n- [x] Clean all the code\r\n- [x] Make sure collected metrics
from stats are still aligned with what\r\nwe were collecting before;
also verify if the modules used for optimizer\r\ncaches etc are well
generated (@kbn/node-libs-browser)\r\n- [x] Fix watch
performance\r\n\r\n---------\r\n\r\nCo-authored-by: kibanamachine
<42973632+kibanamachine@users.noreply.github.com>\r\nCo-authored-by:
Brad White
<brad.white@elastic.co>","sha":"203bc284781cc830049b3f7948c8fcafa8b7d9a1","branchLabelMapping":{"^v9.1.0$":"main","^v8.19.0$":"8.x","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["chore","Team:Operations","release_note:skip","Team:Fleet","v9.0.0","backport:all-open","ci:build-webpack-bundle-analyzer","Team:obs-ux-infra_services","v9.1.0"],"title":"chore(NA):
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#89741\r\n\r\nThis PR contains the resulting work of a massive effort
that ports our\r\non top bundler abstraction (called @kbn/optimizer)
from Webpack v4 into\r\nWebpack v5. It's essential in terms of long term
maintenance since v4\r\nwas not receiving updates any longer but will
also unblock some new\r\nfeatures that could be beneficial for our
future DevEx endeavours.\r\n\r\nNext you can find a small list of all
the accomplished tasks on this\r\njourney.\r\n\r\n### Completed
Tasks\r\n- [x] Upgrade dependencies to match the ones on webpack v5\r\n-
[x] Fix null-loader usages\r\n- [x] Fix raw-loader usages\r\n- [x] Fix
file-loader usages\r\n- [x] Fix url-loader usages\r\n- [x] Fix
`@kbn/optimizer-webpack-helpers` to support webpack v5 \r\n- [x] Adopt
previous webpack v4 polyfill-all strategy
with\r\nnode-polyfill-webpack-plugin\r\n- [x] Fix theme-loader on
@kbn/optimizer\r\n- [x] Migrate configurations and ad-hoc loader options
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BundleRemoteModule\r\n- [x] Migrate BundleRemotesPlugin\r\n- [x]
Correctly migrate PopulateBundleCachePlugin\r\n- [x] Correctly migrate
BundleMetricsPlugin\r\n- [x] Check if the profiling plugins still work
(--profile flag)\r\n- [x] Recover if possible the previous webpack v4
cacheGroup chunks\r\nrename to something like
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first green CI, otherwise work\r\non the errors until we do\r\n- [x]
Profile and solve bottlenecks until we get a cold build\r\nperformance
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OpenSSL Legacy Warnings: try to remove `--openssl-legacy-provider\r\n`
flags\r\n- [x] Add Webpack to Renovate config\r\n- [x] Explore removing
`NodePolyfillPlugin`\r\n([here](https://www.npmjs.com/package/node-polyfill-webpack-plugin))
and\r\nadd each polyfill needed individually per each webpack config to
check\r\nif we get smaller bundles. If we do it's better to go with the
case by\r\ncase need approach instead of deploying a bunch of polyfills
with\r\nNodePolyfillPlugin. As another alternative, create a custom
smaller\r\nplugin with only the union of all needed polyfills.\r\n- [x]
Evaluate if we want to touch the resolutions on mainFields
and\r\nconditionNames\r\n- [x] Understand why `@import
'src/core/public/mixins'` does not work\r\nanymore (not a problem, we
should use relative paths anyway but we want\r\nto track why it changed
from v4 to v5)\r\n- [x] BUG: Child compilers are having errors hidden
and/or changed from\r\nerror to warning\r\n- [x] Fix license check
for\r\n[Artistic-2.0](https://spdx.org/licenses/Artistic-2.0.html) is
the\r\nlicense
for\r\n[domain-browser](https://github.com/bevry/domain-browser?tab=License-1-ov-file).\r\nThis
package is a dependency
of\r\n[NodePolyfillPlugin](https://www.npmjs.com/package/node-polyfill-webpack-plugin).\r\nArtistic
2.0 license is [classified
as\r\nyellow](https://github.com/elastic/open-source/blob/main/elastic-product-policy.md#yellow-list)\r\nand
should only be used for dev dependencies.\r\n- [x] Make sure
`resourceQuery: { not: /raw/ }` is not necessary on\r\nother webpack
configs like storybook one\r\n- [x] Find what is being wrongly removed
by usedExports optimization;\r\nhint: I believe it is identifying a lot
of exports inside the sync entry\r\nof plugins as unused exports and
removing them. Then `__kbnBootstrap__`\r\ncan't be found\r\n- [x]
Rebalance @kbn/optimizer pickMaxWorkerCount\r\n- [x] Re-open the issue
to fix
sass-warnings\r\n[#190345](#190345)
or downgrade\r\nsass-loader to v10\r\n- [x] Remove previous esm no parse
rules\r\n- [x] Confirm esm support is working\r\n- [x] Confirm console
override is needed\r\n- [x] Confirm react prod builds on ui shared deps
for distributable\r\n- [x] Remove customization
for\r\n[xyflow](https://github.com/xyflow/xyflow) from webpack
configs\r\n- [x] Clean all the code\r\n- [x] Make sure collected metrics
from stats are still aligned with what\r\nwe were collecting before;
also verify if the modules used for optimizer\r\ncaches etc are well
generated (@kbn/node-libs-browser)\r\n- [x] Fix watch
performance\r\n\r\n---------\r\n\r\nCo-authored-by: kibanamachine
<42973632+kibanamachine@users.noreply.github.com>\r\nCo-authored-by:
Brad White
<brad.white@elastic.co>","sha":"203bc284781cc830049b3f7948c8fcafa8b7d9a1"}},"sourceBranch":"main","suggestedTargetBranches":[],"targetPullRequestStates":[{"branch":"9.0","label":"v9.0.0","branchLabelMappingKey":"^v(\\d+).(\\d+).\\d+$","isSourceBranch":false,"url":"https://github.com/elastic/kibana/pull/211145","number":211145,"state":"OPEN"},{"branch":"main","label":"v9.1.0","branchLabelMappingKey":"^v9.1.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/191106","number":191106,"mergeCommit":{"message":"chore(NA):
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#89741\r\n\r\nThis PR contains the resulting work of a massive effort
that ports our\r\non top bundler abstraction (called @kbn/optimizer)
from Webpack v4 into\r\nWebpack v5. It's essential in terms of long term
maintenance since v4\r\nwas not receiving updates any longer but will
also unblock some new\r\nfeatures that could be beneficial for our
future DevEx endeavours.\r\n\r\nNext you can find a small list of all
the accomplished tasks on this\r\njourney.\r\n\r\n### Completed
Tasks\r\n- [x] Upgrade dependencies to match the ones on webpack v5\r\n-
[x] Fix null-loader usages\r\n- [x] Fix raw-loader usages\r\n- [x] Fix
file-loader usages\r\n- [x] Fix url-loader usages\r\n- [x] Fix
`@kbn/optimizer-webpack-helpers` to support webpack v5 \r\n- [x] Adopt
previous webpack v4 polyfill-all strategy
with\r\nnode-polyfill-webpack-plugin\r\n- [x] Fix theme-loader on
@kbn/optimizer\r\n- [x] Migrate configurations and ad-hoc loader options
on all webpack\r\nconfigs from v4 to v5\r\n- [x] Fix @kbn/test jest
resolver for file-loader cases\r\n- [x] Migrate public-path loader on
UiSharedDeps\r\n- [x] Fix all usages of webpack-merge\r\n- [x] Migrate
BundleRemoteModule\r\n- [x] Migrate BundleRemotesPlugin\r\n- [x]
Correctly migrate PopulateBundleCachePlugin\r\n- [x] Correctly migrate
BundleMetricsPlugin\r\n- [x] Check if the profiling plugins still work
(--profile flag)\r\n- [x] Recover if possible the previous webpack v4
cacheGroup chunks\r\nrename to something like
`data.plugin.chunk.0.js`\r\n- [x] Run `/ci` and make sure we get our
first green CI, otherwise work\r\non the errors until we do\r\n- [x]
Profile and solve bottlenecks until we get a cold build\r\nperformance
similar to the one we had on webpack v4
(`node\r\nscripts/build_kibana_platform_plugins --no-cache`).\r\n- [x]
OpenSSL Legacy Warnings: try to remove `--openssl-legacy-provider\r\n`
flags\r\n- [x] Add Webpack to Renovate config\r\n- [x] Explore removing
`NodePolyfillPlugin`\r\n([here](https://www.npmjs.com/package/node-polyfill-webpack-plugin))
and\r\nadd each polyfill needed individually per each webpack config to
check\r\nif we get smaller bundles. If we do it's better to go with the
case by\r\ncase need approach instead of deploying a bunch of polyfills
with\r\nNodePolyfillPlugin. As another alternative, create a custom
smaller\r\nplugin with only the union of all needed polyfills.\r\n- [x]
Evaluate if we want to touch the resolutions on mainFields
and\r\nconditionNames\r\n- [x] Understand why `@import
'src/core/public/mixins'` does not work\r\nanymore (not a problem, we
should use relative paths anyway but we want\r\nto track why it changed
from v4 to v5)\r\n- [x] BUG: Child compilers are having errors hidden
and/or changed from\r\nerror to warning\r\n- [x] Fix license check
for\r\n[Artistic-2.0](https://spdx.org/licenses/Artistic-2.0.html) is
the\r\nlicense
for\r\n[domain-browser](https://github.com/bevry/domain-browser?tab=License-1-ov-file).\r\nThis
package is a dependency
of\r\n[NodePolyfillPlugin](https://www.npmjs.com/package/node-polyfill-webpack-plugin).\r\nArtistic
2.0 license is [classified
as\r\nyellow](https://github.com/elastic/open-source/blob/main/elastic-product-policy.md#yellow-list)\r\nand
should only be used for dev dependencies.\r\n- [x] Make sure
`resourceQuery: { not: /raw/ }` is not necessary on\r\nother webpack
configs like storybook one\r\n- [x] Find what is being wrongly removed
by usedExports optimization;\r\nhint: I believe it is identifying a lot
of exports inside the sync entry\r\nof plugins as unused exports and
removing them. Then `__kbnBootstrap__`\r\ncan't be found\r\n- [x]
Rebalance @kbn/optimizer pickMaxWorkerCount\r\n- [x] Re-open the issue
to fix
sass-warnings\r\n[#190345](#190345)
or downgrade\r\nsass-loader to v10\r\n- [x] Remove previous esm no parse
rules\r\n- [x] Confirm esm support is working\r\n- [x] Confirm console
override is needed\r\n- [x] Confirm react prod builds on ui shared deps
for distributable\r\n- [x] Remove customization
for\r\n[xyflow](https://github.com/xyflow/xyflow) from webpack
configs\r\n- [x] Clean all the code\r\n- [x] Make sure collected metrics
from stats are still aligned with what\r\nwe were collecting before;
also verify if the modules used for optimizer\r\ncaches etc are well
generated (@kbn/node-libs-browser)\r\n- [x] Fix watch
performance\r\n\r\n---------\r\n\r\nCo-authored-by: kibanamachine
<42973632+kibanamachine@users.noreply.github.com>\r\nCo-authored-by:
Brad White
<brad.white@elastic.co>","sha":"203bc284781cc830049b3f7948c8fcafa8b7d9a1"}},{"url":"https://github.com/elastic/kibana/pull/211146","number":211146,"branch":"8.x","state":"OPEN"}]}]
BACKPORT-->

---------

Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>
@kibanamachine kibanamachine added the backport missing Added to PRs automatically when the are determined to be missing a backport. label Feb 17, 2025
@kibanamachine
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Looks like this PR has backport PRs but they still haven't been merged. Please merge them ASAP to keep the branches relatively in sync.

@kibanamachine
Copy link
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Looks like this PR has backport PRs but they still haven't been merged. Please merge them ASAP to keep the branches relatively in sync.

mistic added a commit that referenced this pull request Feb 19, 2025
# Backport

This will backport the following commits from `main` to `8.17`:
- [chore(NA): upgrade to webpack 5
(#191106)](#191106)

<!--- Backport version: 9.6.4 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sorenlouv/backport)

<!--BACKPORT [{"author":{"name":"Tiago
Costa","email":"tiago.costa@elastic.co"},"sourceCommit":{"committedDate":"2025-02-14T03:01:36Z","message":"chore(NA):
upgrade to webpack 5 (#191106)\n\n### Summary\r\n\r\n- Closes
#89741\r\n\r\nThis PR contains the resulting work of a massive effort
that ports our\r\non top bundler abstraction (called @kbn/optimizer)
from Webpack v4 into\r\nWebpack v5. It's essential in terms of long term
maintenance since v4\r\nwas not receiving updates any longer but will
also unblock some new\r\nfeatures that could be beneficial for our
future DevEx endeavours.\r\n\r\nNext you can find a small list of all
the accomplished tasks on this\r\njourney.\r\n\r\n### Completed
Tasks\r\n- [x] Upgrade dependencies to match the ones on webpack v5\r\n-
[x] Fix null-loader usages\r\n- [x] Fix raw-loader usages\r\n- [x] Fix
file-loader usages\r\n- [x] Fix url-loader usages\r\n- [x] Fix
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OpenSSL Legacy Warnings: try to remove `--openssl-legacy-provider\r\n`
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`NodePolyfillPlugin`\r\n([here](https://www.npmjs.com/package/node-polyfill-webpack-plugin))
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also verify if the modules used for optimizer\r\ncaches etc are well
generated (@kbn/node-libs-browser)\r\n- [x] Fix watch
performance\r\n\r\n---------\r\n\r\nCo-authored-by: kibanamachine
<42973632+kibanamachine@users.noreply.github.com>\r\nCo-authored-by:
Brad White
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that ports our\r\non top bundler abstraction (called @kbn/optimizer)
from Webpack v4 into\r\nWebpack v5. It's essential in terms of long term
maintenance since v4\r\nwas not receiving updates any longer but will
also unblock some new\r\nfeatures that could be beneficial for our
future DevEx endeavours.\r\n\r\nNext you can find a small list of all
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[x] Fix null-loader usages\r\n- [x] Fix raw-loader usages\r\n- [x] Fix
file-loader usages\r\n- [x] Fix url-loader usages\r\n- [x] Fix
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OpenSSL Legacy Warnings: try to remove `--openssl-legacy-provider\r\n`
flags\r\n- [x] Add Webpack to Renovate config\r\n- [x] Explore removing
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and/or changed from\r\nerror to warning\r\n- [x] Fix license check
for\r\n[Artistic-2.0](https://spdx.org/licenses/Artistic-2.0.html) is
the\r\nlicense
for\r\n[domain-browser](https://github.com/bevry/domain-browser?tab=License-1-ov-file).\r\nThis
package is a dependency
of\r\n[NodePolyfillPlugin](https://www.npmjs.com/package/node-polyfill-webpack-plugin).\r\nArtistic
2.0 license is [classified
as\r\nyellow](https://github.com/elastic/open-source/blob/main/elastic-product-policy.md#yellow-list)\r\nand
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`resourceQuery: { not: /raw/ }` is not necessary on\r\nother webpack
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of exports inside the sync entry\r\nof plugins as unused exports and
removing them. Then `__kbnBootstrap__`\r\ncan't be found\r\n- [x]
Rebalance @kbn/optimizer pickMaxWorkerCount\r\n- [x] Re-open the issue
to fix
sass-warnings\r\n[#190345](#190345)
or downgrade\r\nsass-loader to v10\r\n- [x] Remove previous esm no parse
rules\r\n- [x] Confirm esm support is working\r\n- [x] Confirm console
override is needed\r\n- [x] Confirm react prod builds on ui shared deps
for distributable\r\n- [x] Remove customization
for\r\n[xyflow](https://github.com/xyflow/xyflow) from webpack
configs\r\n- [x] Clean all the code\r\n- [x] Make sure collected metrics
from stats are still aligned with what\r\nwe were collecting before;
also verify if the modules used for optimizer\r\ncaches etc are well
generated (@kbn/node-libs-browser)\r\n- [x] Fix watch
performance\r\n\r\n---------\r\n\r\nCo-authored-by: kibanamachine
<42973632+kibanamachine@users.noreply.github.com>\r\nCo-authored-by:
Brad White
<brad.white@elastic.co>","sha":"203bc284781cc830049b3f7948c8fcafa8b7d9a1"}},"sourceBranch":"main","suggestedTargetBranches":[],"targetPullRequestStates":[{"branch":"9.0","label":"v9.0.0","branchLabelMappingKey":"^v(\\d+).(\\d+).\\d+$","isSourceBranch":false,"url":"https://github.com/elastic/kibana/pull/211145","number":211145,"state":"OPEN"},{"branch":"main","label":"v9.1.0","branchLabelMappingKey":"^v9.1.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/191106","number":191106,"mergeCommit":{"message":"chore(NA):
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#89741\r\n\r\nThis PR contains the resulting work of a massive effort
that ports our\r\non top bundler abstraction (called @kbn/optimizer)
from Webpack v4 into\r\nWebpack v5. It's essential in terms of long term
maintenance since v4\r\nwas not receiving updates any longer but will
also unblock some new\r\nfeatures that could be beneficial for our
future DevEx endeavours.\r\n\r\nNext you can find a small list of all
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[x] Fix null-loader usages\r\n- [x] Fix raw-loader usages\r\n- [x] Fix
file-loader usages\r\n- [x] Fix url-loader usages\r\n- [x] Fix
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previous webpack v4 polyfill-all strategy
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BundleRemoteModule\r\n- [x] Migrate BundleRemotesPlugin\r\n- [x]
Correctly migrate PopulateBundleCachePlugin\r\n- [x] Correctly migrate
BundleMetricsPlugin\r\n- [x] Check if the profiling plugins still work
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similar to the one we had on webpack v4
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OpenSSL Legacy Warnings: try to remove `--openssl-legacy-provider\r\n`
flags\r\n- [x] Add Webpack to Renovate config\r\n- [x] Explore removing
`NodePolyfillPlugin`\r\n([here](https://www.npmjs.com/package/node-polyfill-webpack-plugin))
and\r\nadd each polyfill needed individually per each webpack config to
check\r\nif we get smaller bundles. If we do it's better to go with the
case by\r\ncase need approach instead of deploying a bunch of polyfills
with\r\nNodePolyfillPlugin. As another alternative, create a custom
smaller\r\nplugin with only the union of all needed polyfills.\r\n- [x]
Evaluate if we want to touch the resolutions on mainFields
and\r\nconditionNames\r\n- [x] Understand why `@import
'src/core/public/mixins'` does not work\r\nanymore (not a problem, we
should use relative paths anyway but we want\r\nto track why it changed
from v4 to v5)\r\n- [x] BUG: Child compilers are having errors hidden
and/or changed from\r\nerror to warning\r\n- [x] Fix license check
for\r\n[Artistic-2.0](https://spdx.org/licenses/Artistic-2.0.html) is
the\r\nlicense
for\r\n[domain-browser](https://github.com/bevry/domain-browser?tab=License-1-ov-file).\r\nThis
package is a dependency
of\r\n[NodePolyfillPlugin](https://www.npmjs.com/package/node-polyfill-webpack-plugin).\r\nArtistic
2.0 license is [classified
as\r\nyellow](https://github.com/elastic/open-source/blob/main/elastic-product-policy.md#yellow-list)\r\nand
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`resourceQuery: { not: /raw/ }` is not necessary on\r\nother webpack
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by usedExports optimization;\r\nhint: I believe it is identifying a lot
of exports inside the sync entry\r\nof plugins as unused exports and
removing them. Then `__kbnBootstrap__`\r\ncan't be found\r\n- [x]
Rebalance @kbn/optimizer pickMaxWorkerCount\r\n- [x] Re-open the issue
to fix
sass-warnings\r\n[#190345](#190345)
or downgrade\r\nsass-loader to v10\r\n- [x] Remove previous esm no parse
rules\r\n- [x] Confirm esm support is working\r\n- [x] Confirm console
override is needed\r\n- [x] Confirm react prod builds on ui shared deps
for distributable\r\n- [x] Remove customization
for\r\n[xyflow](https://github.com/xyflow/xyflow) from webpack
configs\r\n- [x] Clean all the code\r\n- [x] Make sure collected metrics
from stats are still aligned with what\r\nwe were collecting before;
also verify if the modules used for optimizer\r\ncaches etc are well
generated (@kbn/node-libs-browser)\r\n- [x] Fix watch
performance\r\n\r\n---------\r\n\r\nCo-authored-by: kibanamachine
<42973632+kibanamachine@users.noreply.github.com>\r\nCo-authored-by:
Brad White
<brad.white@elastic.co>","sha":"203bc284781cc830049b3f7948c8fcafa8b7d9a1"}},{"url":"https://github.com/elastic/kibana/pull/211146","number":211146,"branch":"8.x","state":"OPEN"},{"url":"https://github.com/elastic/kibana/pull/211147","number":211147,"branch":"8.18","state":"OPEN"}]}]
BACKPORT-->

---------

Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>
mistic added a commit that referenced this pull request Feb 19, 2025
# Backport

This will backport the following commits from `main` to `8.16`:
- [chore(NA): upgrade to webpack 5
(#191106)](#191106)

<!--- Backport version: 9.6.4 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sorenlouv/backport)

<!--BACKPORT [{"author":{"name":"Tiago
Costa","email":"tiago.costa@elastic.co"},"sourceCommit":{"committedDate":"2025-02-14T03:01:36Z","message":"chore(NA):
upgrade to webpack 5 (#191106)\n\n### Summary\r\n\r\n- Closes
#89741\r\n\r\nThis PR contains the resulting work of a massive effort
that ports our\r\non top bundler abstraction (called @kbn/optimizer)
from Webpack v4 into\r\nWebpack v5. It's essential in terms of long term
maintenance since v4\r\nwas not receiving updates any longer but will
also unblock some new\r\nfeatures that could be beneficial for our
future DevEx endeavours.\r\n\r\nNext you can find a small list of all
the accomplished tasks on this\r\njourney.\r\n\r\n### Completed
Tasks\r\n- [x] Upgrade dependencies to match the ones on webpack v5\r\n-
[x] Fix null-loader usages\r\n- [x] Fix raw-loader usages\r\n- [x] Fix
file-loader usages\r\n- [x] Fix url-loader usages\r\n- [x] Fix
`@kbn/optimizer-webpack-helpers` to support webpack v5 \r\n- [x] Adopt
previous webpack v4 polyfill-all strategy
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cacheGroup chunks\r\nrename to something like
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Profile and solve bottlenecks until we get a cold build\r\nperformance
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OpenSSL Legacy Warnings: try to remove `--openssl-legacy-provider\r\n`
flags\r\n- [x] Add Webpack to Renovate config\r\n- [x] Explore removing
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and\r\nconditionNames\r\n- [x] Understand why `@import
'src/core/public/mixins'` does not work\r\nanymore (not a problem, we
should use relative paths anyway but we want\r\nto track why it changed
from v4 to v5)\r\n- [x] BUG: Child compilers are having errors hidden
and/or changed from\r\nerror to warning\r\n- [x] Fix license check
for\r\n[Artistic-2.0](https://spdx.org/licenses/Artistic-2.0.html) is
the\r\nlicense
for\r\n[domain-browser](https://github.com/bevry/domain-browser?tab=License-1-ov-file).\r\nThis
package is a dependency
of\r\n[NodePolyfillPlugin](https://www.npmjs.com/package/node-polyfill-webpack-plugin).\r\nArtistic
2.0 license is [classified
as\r\nyellow](https://github.com/elastic/open-source/blob/main/elastic-product-policy.md#yellow-list)\r\nand
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`resourceQuery: { not: /raw/ }` is not necessary on\r\nother webpack
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by usedExports optimization;\r\nhint: I believe it is identifying a lot
of exports inside the sync entry\r\nof plugins as unused exports and
removing them. Then `__kbnBootstrap__`\r\ncan't be found\r\n- [x]
Rebalance @kbn/optimizer pickMaxWorkerCount\r\n- [x] Re-open the issue
to fix
sass-warnings\r\n[#190345](#190345)
or downgrade\r\nsass-loader to v10\r\n- [x] Remove previous esm no parse
rules\r\n- [x] Confirm esm support is working\r\n- [x] Confirm console
override is needed\r\n- [x] Confirm react prod builds on ui shared deps
for distributable\r\n- [x] Remove customization
for\r\n[xyflow](https://github.com/xyflow/xyflow) from webpack
configs\r\n- [x] Clean all the code\r\n- [x] Make sure collected metrics
from stats are still aligned with what\r\nwe were collecting before;
also verify if the modules used for optimizer\r\ncaches etc are well
generated (@kbn/node-libs-browser)\r\n- [x] Fix watch
performance\r\n\r\n---------\r\n\r\nCo-authored-by: kibanamachine
<42973632+kibanamachine@users.noreply.github.com>\r\nCo-authored-by:
Brad White
<brad.white@elastic.co>","sha":"203bc284781cc830049b3f7948c8fcafa8b7d9a1","branchLabelMapping":{"^v9.1.0$":"main","^v8.19.0$":"8.x","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["chore","Team:Operations","release_note:skip","Team:Fleet","v9.0.0","backport:all-open","ci:build-webpack-bundle-analyzer","Team:obs-ux-infra_services","v9.1.0"],"title":"chore(NA):
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upgrade to webpack 5 (#191106)\n\n### Summary\r\n\r\n- Closes
#89741\r\n\r\nThis PR contains the resulting work of a massive effort
that ports our\r\non top bundler abstraction (called @kbn/optimizer)
from Webpack v4 into\r\nWebpack v5. It's essential in terms of long term
maintenance since v4\r\nwas not receiving updates any longer but will
also unblock some new\r\nfeatures that could be beneficial for our
future DevEx endeavours.\r\n\r\nNext you can find a small list of all
the accomplished tasks on this\r\njourney.\r\n\r\n### Completed
Tasks\r\n- [x] Upgrade dependencies to match the ones on webpack v5\r\n-
[x] Fix null-loader usages\r\n- [x] Fix raw-loader usages\r\n- [x] Fix
file-loader usages\r\n- [x] Fix url-loader usages\r\n- [x] Fix
`@kbn/optimizer-webpack-helpers` to support webpack v5 \r\n- [x] Adopt
previous webpack v4 polyfill-all strategy
with\r\nnode-polyfill-webpack-plugin\r\n- [x] Fix theme-loader on
@kbn/optimizer\r\n- [x] Migrate configurations and ad-hoc loader options
on all webpack\r\nconfigs from v4 to v5\r\n- [x] Fix @kbn/test jest
resolver for file-loader cases\r\n- [x] Migrate public-path loader on
UiSharedDeps\r\n- [x] Fix all usages of webpack-merge\r\n- [x] Migrate
BundleRemoteModule\r\n- [x] Migrate BundleRemotesPlugin\r\n- [x]
Correctly migrate PopulateBundleCachePlugin\r\n- [x] Correctly migrate
BundleMetricsPlugin\r\n- [x] Check if the profiling plugins still work
(--profile flag)\r\n- [x] Recover if possible the previous webpack v4
cacheGroup chunks\r\nrename to something like
`data.plugin.chunk.0.js`\r\n- [x] Run `/ci` and make sure we get our
first green CI, otherwise work\r\non the errors until we do\r\n- [x]
Profile and solve bottlenecks until we get a cold build\r\nperformance
similar to the one we had on webpack v4
(`node\r\nscripts/build_kibana_platform_plugins --no-cache`).\r\n- [x]
OpenSSL Legacy Warnings: try to remove `--openssl-legacy-provider\r\n`
flags\r\n- [x] Add Webpack to Renovate config\r\n- [x] Explore removing
`NodePolyfillPlugin`\r\n([here](https://www.npmjs.com/package/node-polyfill-webpack-plugin))
and\r\nadd each polyfill needed individually per each webpack config to
check\r\nif we get smaller bundles. If we do it's better to go with the
case by\r\ncase need approach instead of deploying a bunch of polyfills
with\r\nNodePolyfillPlugin. As another alternative, create a custom
smaller\r\nplugin with only the union of all needed polyfills.\r\n- [x]
Evaluate if we want to touch the resolutions on mainFields
and\r\nconditionNames\r\n- [x] Understand why `@import
'src/core/public/mixins'` does not work\r\nanymore (not a problem, we
should use relative paths anyway but we want\r\nto track why it changed
from v4 to v5)\r\n- [x] BUG: Child compilers are having errors hidden
and/or changed from\r\nerror to warning\r\n- [x] Fix license check
for\r\n[Artistic-2.0](https://spdx.org/licenses/Artistic-2.0.html) is
the\r\nlicense
for\r\n[domain-browser](https://github.com/bevry/domain-browser?tab=License-1-ov-file).\r\nThis
package is a dependency
of\r\n[NodePolyfillPlugin](https://www.npmjs.com/package/node-polyfill-webpack-plugin).\r\nArtistic
2.0 license is [classified
as\r\nyellow](https://github.com/elastic/open-source/blob/main/elastic-product-policy.md#yellow-list)\r\nand
should only be used for dev dependencies.\r\n- [x] Make sure
`resourceQuery: { not: /raw/ }` is not necessary on\r\nother webpack
configs like storybook one\r\n- [x] Find what is being wrongly removed
by usedExports optimization;\r\nhint: I believe it is identifying a lot
of exports inside the sync entry\r\nof plugins as unused exports and
removing them. Then `__kbnBootstrap__`\r\ncan't be found\r\n- [x]
Rebalance @kbn/optimizer pickMaxWorkerCount\r\n- [x] Re-open the issue
to fix
sass-warnings\r\n[#190345](#190345)
or downgrade\r\nsass-loader to v10\r\n- [x] Remove previous esm no parse
rules\r\n- [x] Confirm esm support is working\r\n- [x] Confirm console
override is needed\r\n- [x] Confirm react prod builds on ui shared deps
for distributable\r\n- [x] Remove customization
for\r\n[xyflow](https://github.com/xyflow/xyflow) from webpack
configs\r\n- [x] Clean all the code\r\n- [x] Make sure collected metrics
from stats are still aligned with what\r\nwe were collecting before;
also verify if the modules used for optimizer\r\ncaches etc are well
generated (@kbn/node-libs-browser)\r\n- [x] Fix watch
performance\r\n\r\n---------\r\n\r\nCo-authored-by: kibanamachine
<42973632+kibanamachine@users.noreply.github.com>\r\nCo-authored-by:
Brad White
<brad.white@elastic.co>","sha":"203bc284781cc830049b3f7948c8fcafa8b7d9a1"}},"sourceBranch":"main","suggestedTargetBranches":[],"targetPullRequestStates":[{"branch":"9.0","label":"v9.0.0","branchLabelMappingKey":"^v(\\d+).(\\d+).\\d+$","isSourceBranch":false,"url":"https://github.com/elastic/kibana/pull/211145","number":211145,"state":"OPEN"},{"branch":"main","label":"v9.1.0","branchLabelMappingKey":"^v9.1.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/191106","number":191106,"mergeCommit":{"message":"chore(NA):
upgrade to webpack 5 (#191106)\n\n### Summary\r\n\r\n- Closes
#89741\r\n\r\nThis PR contains the resulting work of a massive effort
that ports our\r\non top bundler abstraction (called @kbn/optimizer)
from Webpack v4 into\r\nWebpack v5. It's essential in terms of long term
maintenance since v4\r\nwas not receiving updates any longer but will
also unblock some new\r\nfeatures that could be beneficial for our
future DevEx endeavours.\r\n\r\nNext you can find a small list of all
the accomplished tasks on this\r\njourney.\r\n\r\n### Completed
Tasks\r\n- [x] Upgrade dependencies to match the ones on webpack v5\r\n-
[x] Fix null-loader usages\r\n- [x] Fix raw-loader usages\r\n- [x] Fix
file-loader usages\r\n- [x] Fix url-loader usages\r\n- [x] Fix
`@kbn/optimizer-webpack-helpers` to support webpack v5 \r\n- [x] Adopt
previous webpack v4 polyfill-all strategy
with\r\nnode-polyfill-webpack-plugin\r\n- [x] Fix theme-loader on
@kbn/optimizer\r\n- [x] Migrate configurations and ad-hoc loader options
on all webpack\r\nconfigs from v4 to v5\r\n- [x] Fix @kbn/test jest
resolver for file-loader cases\r\n- [x] Migrate public-path loader on
UiSharedDeps\r\n- [x] Fix all usages of webpack-merge\r\n- [x] Migrate
BundleRemoteModule\r\n- [x] Migrate BundleRemotesPlugin\r\n- [x]
Correctly migrate PopulateBundleCachePlugin\r\n- [x] Correctly migrate
BundleMetricsPlugin\r\n- [x] Check if the profiling plugins still work
(--profile flag)\r\n- [x] Recover if possible the previous webpack v4
cacheGroup chunks\r\nrename to something like
`data.plugin.chunk.0.js`\r\n- [x] Run `/ci` and make sure we get our
first green CI, otherwise work\r\non the errors until we do\r\n- [x]
Profile and solve bottlenecks until we get a cold build\r\nperformance
similar to the one we had on webpack v4
(`node\r\nscripts/build_kibana_platform_plugins --no-cache`).\r\n- [x]
OpenSSL Legacy Warnings: try to remove `--openssl-legacy-provider\r\n`
flags\r\n- [x] Add Webpack to Renovate config\r\n- [x] Explore removing
`NodePolyfillPlugin`\r\n([here](https://www.npmjs.com/package/node-polyfill-webpack-plugin))
and\r\nadd each polyfill needed individually per each webpack config to
check\r\nif we get smaller bundles. If we do it's better to go with the
case by\r\ncase need approach instead of deploying a bunch of polyfills
with\r\nNodePolyfillPlugin. As another alternative, create a custom
smaller\r\nplugin with only the union of all needed polyfills.\r\n- [x]
Evaluate if we want to touch the resolutions on mainFields
and\r\nconditionNames\r\n- [x] Understand why `@import
'src/core/public/mixins'` does not work\r\nanymore (not a problem, we
should use relative paths anyway but we want\r\nto track why it changed
from v4 to v5)\r\n- [x] BUG: Child compilers are having errors hidden
and/or changed from\r\nerror to warning\r\n- [x] Fix license check
for\r\n[Artistic-2.0](https://spdx.org/licenses/Artistic-2.0.html) is
the\r\nlicense
for\r\n[domain-browser](https://github.com/bevry/domain-browser?tab=License-1-ov-file).\r\nThis
package is a dependency
of\r\n[NodePolyfillPlugin](https://www.npmjs.com/package/node-polyfill-webpack-plugin).\r\nArtistic
2.0 license is [classified
as\r\nyellow](https://github.com/elastic/open-source/blob/main/elastic-product-policy.md#yellow-list)\r\nand
should only be used for dev dependencies.\r\n- [x] Make sure
`resourceQuery: { not: /raw/ }` is not necessary on\r\nother webpack
configs like storybook one\r\n- [x] Find what is being wrongly removed
by usedExports optimization;\r\nhint: I believe it is identifying a lot
of exports inside the sync entry\r\nof plugins as unused exports and
removing them. Then `__kbnBootstrap__`\r\ncan't be found\r\n- [x]
Rebalance @kbn/optimizer pickMaxWorkerCount\r\n- [x] Re-open the issue
to fix
sass-warnings\r\n[#190345](#190345)
or downgrade\r\nsass-loader to v10\r\n- [x] Remove previous esm no parse
rules\r\n- [x] Confirm esm support is working\r\n- [x] Confirm console
override is needed\r\n- [x] Confirm react prod builds on ui shared deps
for distributable\r\n- [x] Remove customization
for\r\n[xyflow](https://github.com/xyflow/xyflow) from webpack
configs\r\n- [x] Clean all the code\r\n- [x] Make sure collected metrics
from stats are still aligned with what\r\nwe were collecting before;
also verify if the modules used for optimizer\r\ncaches etc are well
generated (@kbn/node-libs-browser)\r\n- [x] Fix watch
performance\r\n\r\n---------\r\n\r\nCo-authored-by: kibanamachine
<42973632+kibanamachine@users.noreply.github.com>\r\nCo-authored-by:
Brad White
<brad.white@elastic.co>","sha":"203bc284781cc830049b3f7948c8fcafa8b7d9a1"}},{"url":"https://github.com/elastic/kibana/pull/211146","number":211146,"branch":"8.x","state":"OPEN"},{"url":"https://github.com/elastic/kibana/pull/211147","number":211147,"branch":"8.18","state":"OPEN"},{"url":"https://github.com/elastic/kibana/pull/211148","number":211148,"branch":"8.17","state":"OPEN"}]}]
BACKPORT-->

---------

Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>
@kibanamachine kibanamachine added v8.16.5 and removed backport missing Added to PRs automatically when the are determined to be missing a backport. labels Feb 19, 2025
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Update Webpack to v5