Add support for linux/s390x architecture

[bwalk-at-ibm]

The s390x CPU architecture is the base for IBM zSeries (aka mainframe) systems. It is beneficial for users of this platform to have a supported way to install pre-compiled binaries for the OpenTelemetry collector in a Linux environment. This issue and associated pull requests will enable the building of all relevant binary artifacts for linux/s390x as part of the regular CI pipeline.

IBM has performed tests internally to ensure successful build (via cross-compilation) and runtime (on native platform) integrity of the OpenTelemetry collector (core and contrib) via the unit test suites and specific use-cases.

For more information and discussion please refer to the initial feature request issue (open-telemetry/opentelemetry-collector-releases#378).

Resolves: #8213

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: bwalk-at-ibm / name: Bjoern Walk (bfdcb97)

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: +0.08% 🎉

Comparison is base (92f5fe6) 90.18% compared to head (a6a099b) 90.27%.

❗ Current head a6a099b differs from pull request most recent head bfdcb97. Consider uploading reports for the commit bfdcb97 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8214      +/-   ##
==========================================
+ Coverage   90.18%   90.27%   +0.08%     
==========================================
  Files         302      301       -1     
  Lines       15859    15581     -278     
==========================================
- Hits        14303    14065     -238     
+ Misses       1261     1227      -34     
+ Partials      295      289       -6     

see 14 files with indirect coverage changes

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[mx-psi]

I am okay with merging this, with the understanding that this does not mean we support s390x and that until we tackle #8209 contributors are free to provide no-op implementations for s390x for new features if it would be a significant burden to support something on this architecture.

[github-actions]

This PR was marked stale due to lack of activity. It will be closed in 14 days.

[mx-psi]

@bwalk-at-ibm needs a rebase to pick up new tests on main

[bwalk-at-ibm]

@mx-psi Done.

Not sure what the test failure is though. Any pointers if this is relevant to the PR and how to resolve it?

[mx-psi]

Looks good now :) cc @open-telemetry/collector-maintainers I think this is ready to merge

[github-actions]

This PR was marked stale due to lack of activity. It will be closed in 14 days.

[bwalk-at-ibm]

Is there anything required from my side that blocks the merge?

[mx-psi]

ping @open-telemetry/collector-maintainers