Quotas for instances, volumes, and floating ips.
Check quota and return min(requested, allowed) fixed ips.
Check quota and return min(requested, allowed) floating ips.
Return the number of bytes allowed per injected file content.
Return the number of bytes allowed in an injected file path.
Return the number of injected files allowed.
Check quota and return min(requested_instances, allowed_instances).
Return the number of metadata items allowed.
Check quota and return min(requested, allowed) sec group rules.
Check quota and return min(requested, allowed) security groups.
Check quota and return min(requested_volumes, allowed_volumes).