Many OpenStack server APIs include API extensions that enable additional functionality.
List API extensions
openstack extension list
    [--compute]
    [--identity]
    [--network]
    [--volume]
    [--long]
--computeList extensions for the Compute API
--identityList extensions for the Identity API
--networkList extensions for the Network API
--volumeList extensions for the Block Storage API
--longList additional fields in output
Show API extension
openstack extension show
    <extension>
<extension>Extension to display. Currently, only network extensions are supported. (Name or Alias)
 
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