[Bug 1380150] Re: novaclient: security groups, should fail when creating security groups with duplicate name

[Yogesh Sharma]

The same behavior is true for the other resources created as well like instances, networks, volumes, flavors.
Duplicate names are allowed and in that scenario, the UUIDs are used for the resource as it is unique.
It seems intentional to allow duplicate names for the resources. Is the fix required for this bug to deny duplicate names?

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https://bugs.launchpad.net/bugs/1380150

Title:
  novaclient: security groups, should fail when creating security groups
  with duplicate name

Status in python-novaclient:
  Confirmed
Status in python-novaclient package in Ubuntu:
  New

Bug description:
  When creating a security group using the novaclient.security_groups
  create API, there is not check which avoids creating security group if
  one already exist. This later on poses a problem when trying to
  delete, find the security group, which results in a NoUniqueMatch
  exception as below.

  It would be better if the API returned an error when creating a
  security group with the same name.

         
  ======================================================================
  ERROR: test_network_scenarios (__main__.NetworkScenarioTest)
  ----------------------------------------------------------------------
  Traceback (most recent call last):
    File "/home/xyz/code/install_oct10/pns/vmtp.py", line 359, in tearDown
      self.comp.security_group_delete()
    File "/home/xyz/code/install_oct10/pns/compute.py", line 183, in security_group_delete
      group = self.novaclient.security_groups.find(name=self.config.security_group_name)
    File "/home/xyz/env/env1/lib/python2.7/site-packages/novaclient/base.py", line 140, in find
      raise exceptions.NoUniqueMatch
  NoUniqueMatch

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