Resource quotas appear in multiple APIs, OpenStackClient presents them as a single object with multiple properties.
Compute v2, Block Storage v1
Set quotas for project
os quota set
# Compute settings
[--cores <num-cores>]
[--fixed-ips <num-fixed-ips>]
[--floating-ips <num-floating-ips>]
[--injected-file-size <injected-file-bytes>]
[--injected-files <num-injected-files>]
[--instances <num-instances>]
[--key-pairs <num-key-pairs>]
[--properties <num-properties>]
[--ram <ram-mb>]
# Block Storage settings
[--gigabytes <new-gigabytes>]
[--snapshots <new-snapshots>]
[--volumes <new-volumes>]
[--volume-type <volume-type>]
<project>
Set quotas for class
os quota set
--class
# Compute settings
[--cores <num-cores>]
[--fixed-ips <num-fixed-ips>]
[--floating-ips <num-floating-ips>]
[--injected-file-size <injected-file-bytes>]
[--injected-files <num-injected-files>]
[--instances <num-instances>]
[--key-pairs <num-key-pairs>]
[--properties <num-properties>]
[--ram <ram-mb>]
# Block Storage settings
[--gigabytes <new-gigabytes>]
[--snapshots <new-snapshots>]
[--volumes <new-volumes>]
<class>
Set quotas for <class>
New value for the properties quota
New value for the ram quota
New value for the secgroup-rules quota
New value for the instances quota
New value for the key-pairs quota
New value for the fixed-ips quota
New value for the secgroups quota
New value for the injected-file-size quota
New value for the floating-ips quota
New value for the injected-files quota
New value for the cores quota
New value for the injected-path-size quota
New value for the gigabytes quota
New value for the volumes quota
New value for the snapshots quota
Set quotas for a specific <volume-type>