If deployer specifies invalid backend for glance using 'enabled_backends' in glance-api.conf file then glance stores-info command fails with HTTP 500 error with below stacktrace;
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi [None req-71e90940-8b19-4711-b2fa-910c145c1960 admin admin] Caught error: no such option foo in group [DEFAULT]: oslo_config.cfg.NoSuchOptError: no such option foo in group [DEFAULT]
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi Traceback (most recent call last):
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi File "/opt/stack/data/venv/lib/python3.10/site-packages/oslo_config/cfg.py", line 2219, in __getattr__
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi return self._get(name)
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi File "/opt/stack/data/venv/lib/python3.10/site-packages/oslo_config/cfg.py", line 2653, in _get
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi value, loc = self._do_get(name, group, namespace)
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi File "/opt/stack/data/venv/lib/python3.10/site-packages/oslo_config/cfg.py", line 2671, in _do_get
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi info = self._get_opt_info(name, group)
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi File "/opt/stack/data/venv/lib/python3.10/site-packages/oslo_config/cfg.py", line 2876, in _get_opt_info
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi raise NoSuchOptError(opt_name, group)
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi oslo_config.cfg.NoSuchOptError: no such option foo in group [DEFAULT]
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi During handling of the above exception, another exception occurred:
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi Traceback (most recent call last):
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi File "/opt/stack/glance/glance/common/wsgi.py", line 1297, in __call__
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi action_result = self.dispatch(self.controller, action,
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi File "/opt/stack/glance/glance/common/wsgi.py", line 1340, in dispatch
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi return method(*args, **kwargs)
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi File "/opt/stack/glance/glance/api/v2/discovery.py", line 68, in get_stores
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi description = getattr(CONF, backend).store_description
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi File "/opt/stack/data/venv/lib/python3.10/site-packages/oslo_config/cfg.py", line 2223, in __getattr__
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi raise NoSuchOptError(name)
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi oslo_config.cfg.NoSuchOptError: no such option foo in group [DEFAULT]
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: ERROR glance.common.wsgi
Jan 24 14:25:08 devstack-caracal glance-api[1906424]: INFO eventlet.wsgi.server [None req-71e90940-8b19-4711-b2fa-910c145c1960 admin admin] 10.0.109.128,10.0.109.128 - - [24/Jan/2024 14:25:08] "GET /v2/info/stores HTTP/1.1" 500 454 0.075514
How to reproduce:
1. Define enabled_backends as shown below in glance-api.conf
[DEFAULT]
enabled_backends = fast:file,foo:bar
[glance_store]
default_backend = fast
[fast]
filesystem_store_datadir = /opt/stack/data/glance/images/
[foo]
foo = bar
2. Restart g-api service
3. Run glance stores-info command
