[8.19] [Build] Add flag to revert to glibc 2.42 memory management (#255699)#260565
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…55699) ## Summary Reverts elastic#255691 Newer Chainguard images updated to `glibc 2.43` which changes memory allocation behavior. Adding this flag reverts that behavior and allows us to unblock Chainguard image updates. See https://groups.google.com/a/elastic.co/g/support_team/c/RBgzGXEdyR8/m/MxtQhaAmCQAJ for more details. (cherry picked from commit 9f346df) # Conflicts: # src/dev/build/tasks/os_packages/docker_generator/run.ts # src/dev/build/tasks/os_packages/docker_generator/templates/base/Dockerfile
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## Summary AI assisted with Cursor + `gpt-5.4-high` Adds a Github Workflow that automatically assigns a reviewer for manual backports and removes `kibanamachine`. This avoids common confusion with `kibanamachine` being the codeowner and improves DX. This workflow is gated behind PRs where `kibanamachine` is not the author, therefore it does not collide with backports that were created automatically and are auto-approved through `.github/workflows/auto-approve-backports.yml`. The reviewer is chosen with this algorithm: 1. Try to find the intersection of the PR author's teams and the codeowner teams which submitted reviews in the source PR (via `onBehalfOf` property). 2. If there are matching team(s), they are requested for review on the backport. 3. If no matching teams were found, we fallback to the last human reviewer that approved. 4. If that is also not found, this workflow is a no-op and `kibanamachine` stays as the reviewer. ### Testing I used a generated `json` event for an old backport: #260565. You can see the reviewers changed at the bottom when running locally with `act`. <details> <summary>Local run</summary> ```zsh ➜ kibana (ci/assign-backport-reviewer) ✗ act pull_request_target \ -W .github/workflows/assign-backport-reviewer.yml \ -e data/assign-backport-reviewer.pull_request_target.pr-260565.json \ --env GITHUB_REPOSITORY=elastic/kibana \ --env GITHUB_REPOSITORY_OWNER=elastic \ -s GITHUB_TOKEN="$(gh auth token)" \ -s KIBANAMACHINE_TOKEN="$(gh auth token)" INFO[0000] Using docker host 'unix:///var/run/docker.sock', and daemon socket 'unix:///var/run/docker.sock' [Assign backport reviewer/Assign team reviewer for manual backport] ⭐ Run Set up job [Assign backport reviewer/Assign team reviewer for manual backport] 🚀 Start image=catthehacker/ubuntu:act-latest [Assign backport reviewer/Assign team reviewer for manual backport] 🐳 docker pull image=catthehacker/ubuntu:act-latest platform= username= forcePull=true [Assign backport reviewer/Assign team reviewer for manual backport] 🐳 docker create image=catthehacker/ubuntu:act-latest platform= entrypoint=["tail" "-f" "/dev/null"] cmd=[] network="host" [Assign backport reviewer/Assign team reviewer for manual backport] 🐳 docker run image=catthehacker/ubuntu:act-latest platform= entrypoint=["tail" "-f" "/dev/null"] cmd=[] network="host" [Assign backport reviewer/Assign team reviewer for manual backport] 🐳 docker exec cmd=[node --no-warnings -e console.log(process.execPath)] user= workdir= [Assign backport reviewer/Assign team reviewer for manual backport] ✅ Success - Set up job [Assign backport reviewer/Assign team reviewer for manual backport] ☁ git clone 'https://github.com/actions/github-script' # ref=ed597411d8f924073f98dfc5c65a23a2325f34cd [Assign backport reviewer/Assign team reviewer for manual backport] Non-terminating error while running 'git clone': some refs were not updated [Assign backport reviewer/Assign team reviewer for manual backport] ☁ git clone 'https://github.com/actions/github-script' # ref=ed597411d8f924073f98dfc5c65a23a2325f34cd [Assign backport reviewer/Assign team reviewer for manual backport] Non-terminating error while running 'git clone': some refs were not updated [Assign backport reviewer/Assign team reviewer for manual backport] ⭐ Run Main Select reviewers [Assign backport reviewer/Assign team reviewer for manual backport] 🐳 docker cp src=/home/brad/.cache/act/actions-github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd/ dst=/var/run/act/actions/actions-github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd/ [Assign backport reviewer/Assign team reviewer for manual backport] 🐳 docker exec cmd=[/opt/acttoolcache/node/24.14.1/x64/bin/node /var/run/act/actions/actions-github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd/dist/index.js] user= workdir= [Assign backport reviewer/Assign team reviewer for manual backport] ✅ Success - Main Select reviewers [1.27416023s] [Assign backport reviewer/Assign team reviewer for manual backport] ⚙ ::set-output:: reviewer=jbudz [Assign backport reviewer/Assign team reviewer for manual backport] ⚙ ::set-output:: result= [Assign backport reviewer/Assign team reviewer for manual backport] ⚙ ::set-output:: team_reviewers=elastic/kibana-operations [Assign backport reviewer/Assign team reviewer for manual backport] ⭐ Run Main Update reviewers [Assign backport reviewer/Assign team reviewer for manual backport] 🐳 docker cp src=/home/brad/.cache/act/actions-github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd/ dst=/var/run/act/actions/actions-github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd/ [Assign backport reviewer/Assign team reviewer for manual backport] 🐳 docker exec cmd=[/opt/acttoolcache/node/24.14.1/x64/bin/node /var/run/act/actions/actions-github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd/dist/index.js] user= workdir= | Updating reviewers: teamReviewers=elastic/kibana-operations, reviewer=jbudz [Assign backport reviewer/Assign team reviewer for manual backport] ✅ Success - Main Update reviewers [321.09717ms] [Assign backport reviewer/Assign team reviewer for manual backport] ⚙ ::set-output:: result= [Assign backport reviewer/Assign team reviewer for manual backport] ⭐ Run Complete job [Assign backport reviewer/Assign team reviewer for manual backport] Cleaning up container for job Assign team reviewer for manual backport [Assign backport reviewer/Assign team reviewer for manual backport] ✅ Success - Complete job [Assign backport reviewer/Assign team reviewer for manual backport] 🏁 Job succeeded ``` </details> --------- Co-authored-by: Cursor <cursoragent@cursor.com>
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