The apertis-flatdeb-mildenhall pipeline is flaky

Affected images versions

• v2021 apertis-flatdeb-mildenhall

Unaffected images versions

• N/A

Steps to reproduce

• Open https://gitlab.apertis.org/infrastructure/apertis-flatdeb-mildenhall/-/pipelines

Expected result

All pipeline pass successfully

Actual result

Some pipeline succeed, but we still have relatively frequent failures.

Reproducibility

1. always
2. ✅ often, but not always
3. rarely

Impact of bug

Low, restarting failing jobs usually works.

We may just set retry: 2 on the jobs given this is the legacy Mildenhall runtime and the official runtime does not seem to be affected.

Root cause

describe in one line what caused the issue to give a hint to product teams whether they may be impacted or not

Outcomes

TBD

Management data

This section is for management only, it should be the last one in the description.

Phabricator link: https://phabricator.apertis.org/T8824