Master broken post-mortem for #379000
Context
- Incident: gitlab-org/gitlab#379000 (closed)
- Merge request that caused the master broken incident: gitlab-org/gitlab!99969 (merged)
- Fix for the MR: gitlab-org/gitlab!102173 (closed)
Timeline
- The MR pipeline was green (a few weeks ago).
- The latest MR pipeline (12:19PM CEST) was green.
- The master pipeline triggered after this MR got merged was also green.
Observations
- Locally, running
yarn run generate:startup_css
did not generate any diff. - When creating an MR to fix the problem, the same job failed, but for the exact opposite reason.
- The master pipelines got green on their own a while after.
Open questions
- How come the MR pipeline was green up until the end?
- How come the
master
pipeline right after this was merged was also green? - Why isn't there an output when running
yarn run generate:startup_css
locally?
Other thoughts from author
- It might have been a caching issue?
Edited by David Dieulivol