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-rw-r--r--heat/engine/resources/openstack/cinder/volume.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/heat/engine/resources/openstack/cinder/volume.py b/heat/engine/resources/openstack/cinder/volume.py
index 2d089860f..b9a51c760 100644
--- a/heat/engine/resources/openstack/cinder/volume.py
+++ b/heat/engine/resources/openstack/cinder/volume.py
@@ -279,7 +279,8 @@ class CinderVolume(vb.BaseVolume, sh.SchedulerHintsMixin):
def _create_arguments(self):
arguments = {
'size': self.properties[self.SIZE],
- 'availability_zone': self.properties[self.AVAILABILITY_ZONE],
+ 'availability_zone': (self.properties[self.AVAILABILITY_ZONE] or
+ None),
}
scheduler_hints = self._scheduler_hints(