Build failure: Eventlet deprecation warning causes documentation build to fail (Cinder)

[lpiwowar]

Summary

The container build job fails during documentation generation due to an EventletDeprecationWarning in the Cinder project, which is treated as a fatal error.

Logs

See job logs: Example failing job

oslo_concurrency.processutils.ProcessExecutionError: Unexpected error while running command.
Command: /tmp/os_docs_temp/cinder/.tox/text-docs/bin/python ./tools/generate_driver_list.py ['docs']
Exit code: 1

EventletDeprecationWarning: Eventlet is deprecated. It is currently being maintained in bugfix mode...
text-docs: exit 2 (3.18 seconds) /tmp/os_docs_temp/cinder

Root Cause

• Cinder's documentation build is failing because Eventlet is deprecated, but still imported, and Python warnings are escalated to errors.