Perhaps an obvious statement, but devstack master was working with
stable/kilo until recently, and as of today, it isn't any more (at least
for me).
The devstack commit "Use stevedore for keystone backends" on 2014-05-15
changes the way backends are set, and when I did a fresh install today I
ended up with keystone.conf entries like this:
[assignment]
driver = sql
...
[identity]
driver = sql
...
[token]
driver = sql
rather than fully specified module names (e.g. "driver =
keystone.identity.backends.sql.Identity")
This caused keystone to fail, with errors in /var/log/apache2/keystone.log
like this:
2015-05-16 21:16:25.786955 mod_wsgi (pid=9296): Exception occurred
processing WSGI script '/var/www/keystone/main'.
2015-05-16 21:16:25.787114 Traceback (most recent call last):
2015-05-16 21:16:25.787189 File "/var/www/keystone/main", line 25, in
2015-05-16 21:16:25.787409 application =
wsgi_server.initialize_application(name)
2015-05-16 21:16:25.787437 File
"/opt/stack/keystone/keystone/server/wsgi.py", line 51, in
initialize_application
2015-05-16 21:16:25.787600 startup_application_fn=loadapp)
2015-05-16 21:16:25.787625 File
"/opt/stack/keystone/keystone/server/common.py", line 41, in setup_backends
2015-05-16 21:16:25.787769 drivers = backends.load_backends()
2015-05-16 21:16:25.787795 File
"/opt/stack/keystone/keystone/backends.py", line 39, in load_backends
2015-05-16 21:16:25.787946 _IDENTITY_API = identity.Manager()
2015-05-16 21:16:25.789345 File
"/opt/stack/keystone/keystone/common/dependency.py", line 131, in
__wrapped_init__
2015-05-16 21:16:25.789519 init(self, *args, **kwargs)
2015-05-16 21:16:25.789544 File
"/opt/stack/keystone/keystone/common/dependency.py", line 193, in wrapper
2015-05-16 21:16:25.789570 self.__wrapped_init__(*args, **kwargs)
2015-05-16 21:16:25.789584 File
"/opt/stack/keystone/keystone/identity/core.py", line 412, in __init__
2015-05-16 21:16:25.790098 super(Manager,
self).__init__(CONF.identity.driver)
2015-05-16 21:16:25.790124 File
"/opt/stack/keystone/keystone/common/manager.py", line 70, in __init__
2015-05-16 21:16:25.790203 self.driver =
importutils.import_object(driver_name)
2015-05-16 21:16:25.790226 File
"/usr/local/lib/python2.7/dist-packages/oslo_utils/importutils.py", line
38, in import_object
2015-05-16 21:16:25.790312 return import_class(import_str)(*args,
**kwargs)
2015-05-16 21:16:25.790335 File
"/usr/local/lib/python2.7/dist-packages/oslo_utils/importutils.py", line
27, in import_class
2015-05-16 21:16:25.790358 __import__(mod_str)
2015-05-16 21:16:25.790384 ValueError: Empty module name
After much head-scratching, since I'm not that familiar with keystone, I
figured out what was going on, corrected keystone.conf, and then went back
to devstack:stable/kilo, which behaves normally. I don't think there's an
issue here, but wanted to share in case someone else hits the same problem.
cheers,
Scott
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