[openstack-dev] [nova][oslo] API extension policy deprecation warnings

Matt Riedemann mriedemos at gmail.com
Fri Jan 5 18:45:18 UTC 2018

I've noticed that our CI logs have API extension policy deprecation 
warnings in them on startup, even though we don't use any non-default 
policy rules in our CI runs, so everything is just loaded from policy in 

Jan 05 16:58:48.794318 ubuntu-xenial-rax-dfw-0001705089 
nova-compute[11289]: DEBUG oslo_policy.policy [None 
req-2f69f372-721c-4550-9c28-5fa610a84201 None None] The policy file 
policy.json could not be found. {{(pid=11289) load_rules 
Jan 05 16:58:48.797597 ubuntu-xenial-rax-dfw-0001705089 
UserWarning: Policy 
"os_compute_api:os-extended-volumes":"rule:admin_or_owner" was 
deprecated for removal in 17.0.0. Reason: Nova API extension concept has 
been removed in Pike. Those extensions have their own policies 
enforcement. As there is no extensions now, 
"os_compute_api:os-extended-volumes" policy which was added for 
extensions is not needed any more. Its value may be silently ignored in 
the future.

Isn't there a way to not log a warning if the rule isn't actually set in 
the policy file? Similar to deprecated config options, you only get the 
warning on those if you've set a deprecated config option in the file, 
but you don't get the warnings just because they are in code and not 
removed yet.




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