The Compute and Block Storage APIs have resource usage limits.
Compute v2, Block Storage v1
Show compute and block storage limits
openstack limits show
    --absolute | --rate
    [--reserved]
    [--project <project>]
    [--domain <domain>]
--absoluteShow absolute limits
--rateShow rate limits
--reservedInclude reservations count [only valid with --absolute]
--project <project>¶Show limits for a specific project (name or ID) [only valid with --absolute]
--domain <domain>¶Domain the project belongs to (name or ID) [only valid with --absolute]
 
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