[8.19] Add conditional switching between EUI releases (#219818)#221920
Merged
tkajtoch merged 2 commits intoelastic:8.19from May 29, 2025
Merged
[8.19] Add conditional switching between EUI releases (#219818)#221920tkajtoch merged 2 commits intoelastic:8.19from
tkajtoch merged 2 commits intoelastic:8.19from
Conversation
## Summary This PR simplifies the weekly EUI upgrade and backport process by conditionally aliasing `@elastic/eui` in shared deps webpack configurations. # Backstory The EUI team (@elastic/eui-team) is responsible for keeping EUI up to date in Kibana. Historically, this has been a relatively straightforward (yet time-consuming) process, however, due to `8.x` backport complexities caused by it using a different theme, it has become way more demanding on everybody involved. EUI is released on weekly basis. Each week, we release official EUI versions tagged `latest` in npmjs and get a PR open that updates the package in kibana `main`. Our upgrade PRs tend to require anywhere between 2 and 25 codeowner reviews due to the number of snapshots we need to update while working on the EUI upgrade PRs. These snapshot changes are 99% of the time harmless, yet it still takes 2+ full workdays to ping teams and get all reviews necessary to get the PR merged. Generally speaking, we aim to have the upgrade PR open on Monday and merged by Friday. ## The issue with `8.x` backports Kibana 8.x uses the Amsterdam theme instead of Borealis, which is used in Kibana 9.0 and up. To keep 8.x up to date, for each official EUI release we prepare another special Kibana 8.x only release of EUI (e.g., `101.2.0-amsterdam.0`). These special releases have the theme hardcoded to Amsterdam at compile-time to avoid any initial theme errors Kibana could otherwise experience. This is done primarily because some areas in Kibana read EUI theme values outside of React components, and we have no stable way to determine what the active theme is since there's no context information. This is where we need to fall back to Amsterdam in 8.x and Borealis in 9.x. **Since there are two different EUI versions - one for Kibana `main` and 9.0, and another for 8.x branches, we cannot use the automated backports feature**. Instead, we open two separate PRs and configure backport labels accordingly. Having two PRs is far from ideal since codeowners need to review our changes twice, and we're more likely to make mistakes. # Our proposal Following the recently introduced React version switching logic, we want to conditionally switch between two `@elastic/eui` releases depending on the kibana branch/version while keeping automated backports possible. To achieve that, I added a dependency alias `@elastic/eui-amsterdam` that points to the Amsterdam EUI release and configured `resolve.alias` in shared deps to resolve the correct dependency based on the optional `EUI_AMSTERDAM` environment variable. When this change is merged to `main` and backported to `9.0` and `8.19`, I'll open a follow-up PR to the `8.19` branch updating the default value of `EUI_AMSTERDAM` to `"true"`. This should result in no conflicts and be easy to follow. Since 8.19 [uses the Amsterdam release of `@elastic/eui`](https://github.com/elastic/kibana/blob/8.19/package.json#L126) (e.g., `101.2.0-amsterdam.0`), there's no risk backporting this PR as-is without `EUI_AMSTERDAM` configured beforehand. ## What does it change? With this setup, we'll be able to update versions of `@elastic/eui` and `@elastic/eui-amsterdam` at the same time in a single PR and make use of automated kibana backports. There will be only one set of changes to review by codeowners, and if there are any failing tests when backporting to `8.19` due to, for example, changed color values, we can follow the regular kibana procedures and fix them right in the created backport PR. It'll simplify our workflow quite drastically while keeping the same level of quality. --------- Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com> (cherry picked from commit ac3fc27) # Conflicts: # package.json # packages/kbn-dependency-ownership/src/rule.ts # src/dev/license_checker/config.ts # src/platform/packages/private/kbn-ui-shared-deps-npm/BUILD.bazel # src/platform/packages/private/kbn-ui-shared-deps-src/BUILD.bazel # yarn.lock
Contributor
⏳ Build in-progress, with failures
Failed CI StepsTest Failures
|
Contributor
💛 Build succeeded, but was flaky
Failed CI StepsTest FailuresMetrics [docs]Async chunks
Page load bundle
History
|
weronikaolejniczak
approved these changes
May 29, 2025
delanni
added a commit
to delanni/kibana
that referenced
this pull request
Jan 19, 2026
…c#219818) (elastic#221920)" This reverts commit d7d5e7b.
delanni
added a commit
that referenced
this pull request
Jan 22, 2026
## Summary Revert "[8.19] Add conditional switching between EUI releases (#219818) (#221920)" This reverts commit d7d5e7b. Having 2 dependencies point to the same version of the same dependency on npm seems to wreck yarn's logic, and causes issues on bootstrap. We no longer need this parallel variant of the dependency, so we can just remove it.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Backport
This will backport the following commits from
mainto8.19:Questions ?
Please refer to the Backport tool documentation