fix(ci): bazel coverage failures are mitigated by several flags (see #13026)

[nstng]

Signed-off-by: Nils Semmelrock nils.semmelrock@tngtech.com

Summary

see #13026

Test Plan

• setup remote caching with rw locally
• execute bazel coverage lte/gateway/c/session_manager/test/...
  • see that bazel-out/_coverage/_coverage_report.dat is (ok) or is not (failure) generated
  • do bazel clean between runs
  • you may need multiple runs to see that coverage is not generated
• execute bazel coverage --experimental_split_coverage_postprocessing --experimental_fetch_all_coverage_outputs --remote_download_outputs=all lte/gateway/c/session_manager/test/...
  • see that coverage is always generated

Additional Information

• This change is backwards-breaking

[github-actions]

Thanks for opening a PR! 💯

A couple initial guidelines

• All commits must be signed off. This is enforced by DCO check.
• All PR titles must follow the semantic commits format. This is enforced by Semantic PR.

Howto

• Reviews. The "Reviewers" listed for this PR are the Magma maintainers who will shepherd it.
• Checks. All required CI checks must pass before merge.
• Merge. Once approved and passing CI checks, use the ready2merge label to indicate the maintainers can merge your PR.

More info

Please take a moment to read through the Magma project's

• Contributing Conventions for norms around contributed code

If this is your first Magma PR, also consider reading

• Developer Onboarding for onboarding as a new Magma developer
• Development Workflow for guidance on your first pull request
• CI Checks for points of contact for failing or flaky CI checks
• GitHub-to-Slack mappings for Magma maintainers for guidance on how to contact maintainers on Slack

[github-actions]

dp-workflow

18 tests   18 ✔️  4m 25s ⏱️
  2 suites    0 💤
  2 files      0 ❌

Results for commit cd1337d.

[github-actions]

agw-workflow

     79 files     124 suites   6m 56s ⏱️
1 153 tests 1 149 ✔️ 4 💤 0 ❌
1 155 runs  1 151 ✔️ 4 💤 0 ❌

Results for commit cd1337d.

♻️ This comment has been updated with latest results.

[LKreutzer]

Tested locally (but difficult to know for sure - without the change I had 1 failure in 6 runs)