Allow to resize in-use volumes

Since Pike (microversion 3.42) [1] Cinder API allows to resize in-use
volumes. So no reason not to implement it in CLI.

[1] https://opendev.org/openstack/cinder/src/branch/master/cinder/api/openstack/rest_api_version_history.rst#user-content-section-39

Change-Id: I22462a56d261e0a100aac3f27af7be47223edec0

1 files changed, 6 insertions, 4 deletions

diff --git a/openstackclient/volume/v2/volume.py b/openstackclient/volume/v2/volume.py
index 1e0cb183..cab0b2f4 100644
--- a/openstackclient/volume/v2/volume.py
+++ b/openstackclient/volume/v2/volume.py
@@ -605,14 +605,16 @@ class SetVolume(command.Command):
         result = 0
         if parsed_args.size:
             try:
-                if volume.status != 'available':
-                    msg = (_("Volume is in %s state, it must be available "
-                           "before size can be extended") % volume.status)
-                    raise exceptions.CommandError(msg)
                 if parsed_args.size <= volume.size:
                     msg = (_("New size must be greater than %s GB")
                            % volume.size)
                     raise exceptions.CommandError(msg)
+                if volume.status != 'available' and \
+                        not volume_client.api_version.matches('3.42'):
+
+                    msg = (_("Volume is in %s state, it must be available "
+                           "before size can be extended") % volume.status)
+                    raise exceptions.CommandError(msg)
                 volume_client.volumes.extend(volume.id, parsed_args.size)
             except Exception as e:
                 LOG.error(_("Failed to set volume size: %s"), e)