Open Stack

** Information type changed from Private Security to Public

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https://bugs.launchpad.net/bugs/1289195

Title:
  The duplicate security group name cause don't know witch security
  group use in instance

Status in OpenStack Neutron (virtual network service):
  New

Bug description:
  When create a security group, the duplicate name is allowed.
  In create a instance, which security group to use is designed by sg name, this may cause the user don't know witch sg is used and it may be not the user wanted. So the duplicate name of sg should be not allowed.

  In create instance, it's use set to filter the duplicate sg like:
  sg_names = list(set(sg_names))

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