RuntimeError: Unable to find group for option fatal_deprecations, maybe it's defined twice in the same group?

[Christian Berendt]

I tried to generate a nova.conf configuration file with the current state of the Nova repository (master) and got the following exception message:

% tox -e genconfig
genconfig create: /home/berendt/Repositories/nova/.tox/genconfig
genconfig installdeps: -r/home/berendt/Repositories/nova/requirements.txt, -r/home/berendt/Repositories/nova/test-requirements.txt
genconfig develop-inst: /home/berendt/Repositories/nova
genconfig runtests: PYTHONHASHSEED='0'
genconfig runtests: commands[0] | bash tools/config/generate_sample.sh -b . -p nova -o etc/nova
Traceback (most recent call last):
  File "/usr/lib64/python2.7/runpy.py", line 162, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/usr/lib64/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "/home/berendt/Repositories/nova/nova/openstack/common/config/generator.py", line 303, in <module>
    main()
  File "/home/berendt/Repositories/nova/nova/openstack/common/config/generator.py", line 300, in main
    generate(sys.argv[1:])
  File "/home/berendt/Repositories/nova/nova/openstack/common/config/generator.py", line 128, in generate
    for group, opts in _list_opts(mod_obj):
  File "/home/berendt/Repositories/nova/nova/openstack/common/config/generator.py", line 192, in _list_opts
    ret.setdefault(_guess_groups(opt, obj), []).append(opt)
  File "/home/berendt/Repositories/nova/nova/openstack/common/config/generator.py", line 172, in _guess_groups
    % opt.name
RuntimeError: Unable to find group for option fatal_deprecations, maybe it's defined twice in the same group?

[Davanum Srinivas (DIMS) (dims-v)]

This problem was introduced with this change https://review.openstack.org/#/c/123868/

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/159685

[Doug Hellmann (doug-hellmann)]

The config generator from the incubator is deprecated in favor of the new approach in oslo.config.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/159685
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=31622aeaf947a0e053d24f21b2e24a09b43f9023
Submitter: Jenkins
Branch: master

commit 31622aeaf947a0e053d24f21b2e24a09b43f9023
Author: Davanum Srinivas <email address hidden>
Date: Thu Feb 26 17:46:28 2015 -0500

    Update config generator to use new style list_opts discovery

    Stop-gap until we move to oslo-config-generator. We need something
    to get by the fatal_deprecation problem. The oslo-incubator
    changeset referenced should be merged first.

    Closes-Bug: #1424576
    Depends-On: Ie6d1da242b79bb1dfd03494dee82fbb73eb94217
    Change-Id: I7b9aa7588d91ee7b7d2faeb090b4e0ca6ced1c0a