[9.3] Manage yarn install scripts (#250638)#250832
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jbudz merged 2 commits intoelastic:9.3from Jan 29, 2026
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Disables `yarn install` lifecycle scripts and adds a config file to
specify which scripts run.
Adds:
- `ignore-scripts true` to `.yarnrc`
- `@kbn/yarn-install-scripts` CLI with:
- `run`: runs allowed install scripts defined in
`packages/kbn-yarn-install-scripts/config.json`
- `scan`: lists packages with install scripts
- Integration into `yarn kbn bootstrap`
- CI check that fails if a new or updated package has an install script
not defined in `config.json`
Usage:
```
$ yarn kbn bootstrap
...
success yarn dependencies installed
success Playwright browsers installed
info running allowlisted install scripts
info Running 4 install script(s)...
info Running install for chromedriver@143.0.4
info Running postinstall for cypress@13.17.0
info Running postinstall for esbuild@0.25.9
info Running postinstall for geckodriver@6.1.0
succ Install scripts complete
success install scripts completed
$ node scripts/yarn_install_scripts run --dry-run
info Running 4 install script(s)...
info [dry-run] Would run install for chromedriver@143.0.1
info [dry-run] Would run postinstall for cypress@13.17.0
info [dry-run] Would run postinstall for esbuild@0.25.9
info [dry-run] Would run postinstall for geckodriver@6.1.0
succ Install scripts complete
$ node scripts/yarn_install_scripts scan
info ┌─────────────────────────┬──────────┬─────────┬─────────────┬─────────────────────────────────┐
│ Package │ Status │ Version │ Lifecycle │ Script │
├─────────────────────────┼──────────┼─────────┼─────────────┼─────────────────────────────────┤
│ chromedriver │ required │ 143.0.1 │ install │ node install.js │
├─────────────────────────┼──────────┼─────────┼─────────────┼─────────────────────────────────┤
│ cypress │ required │ 13.17.0 │ postinstall │ node index.js --exec install │
├─────────────────────────┼──────────┼─────────┼─────────────┼─────────────────────────────────┤
│ esbuild │ required │ 0.25.9 │ postinstall │ node install.js │
├─────────────────────────┼──────────┼─────────┼─────────────┼─────────────────────────────────┤
│ ... │ ... │ ... │ ... │ ... │
└─────────────────────────┴──────────┴─────────┴─────────────┴─────────────────────────────────┘
succ Found 18 install scripts: 4 required, 14 skipped, 0 unconfigured
```
Part of elastic#128025
(cherry picked from commit d3e316f)
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