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Tiago Costa 9621d8dd51
[8.16] chore(NA): upgrade to webpack 5 (#191106) (#211152) 
# Backport

This will backport the following commits from `main` to `8.16`:
- [chore(NA): upgrade to webpack 5
(#191106)](https://github.com/elastic/kibana/pull/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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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`
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`NodePolyfillPlugin`\r\n([here](https://www.npmjs.com/package/node-polyfill-webpack-plugin))
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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
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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
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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](https://github.com/elastic/kibana/issues/190345)
or downgrade\r\nsass-loader to v10\r\n- [x] Remove previous esm no parse
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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
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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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#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](https://github.com/elastic/kibana/issues/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](https://github.com/elastic/kibana/issues/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>
2025-02-19 04:15:36 +00:00
..
core-integrations-browser-internal [8.16] chore(NA): upgrade to webpack 5 (#191106) (#211152) 2025-02-19 04:15:36 +00:00
core-integrations-browser-mocks Adds AGPL 3.0 license (#192025) 2024-09-06 19:02:41 -06:00