Glance's Policy Enforcer accesses oslo_policy options

[Ian Cordasco]

In glance/api/policy.py the subclass of oslo_policy.policy.Enforcer overrides __init__ to check to see if the policy file exists which is specified in [oslo_policy]/policy_file.

This seems superfluous and like something that oslo_policy should already handle. There doesn't seem to be a good reason for glance to be doing this instead of oslo_policy handling it.

[Zhi Yan Liu (lzy-dev)]

IIUC on the case this report mentioned, the reason of why I do it is to provide a glance special default rule set into oslo_policy Enforcer (DEFAULT_RULES), and set use_conf flag of oslo_policy Enforcer to be proper.

[Cyril Roelandt (cyril-roelandt)]

This part of the code disappeared with 5c17e4c7ef533b57ba15ead931b0452e23f46b4b, so I'll mark this as fixed.