[Bug 1434150] [NEW] [SRU] missing (anti) affinity support

[Felipe Reyes]

Public bug reported:

[Impact]

OpenStack Icehouse deprecates GroupAffinityFilter in favor of
ServerGroupAffinityFilter[0], but python-novaclient 2.17 doesn't support
server-group creation[1] and policy definition during instance creation,
this a bug in terms that the client isn't complete.

[Test Case]

* Deploy an icehouse cloud with ServerGroupAffinityFilter enabled (the default if using juju charms)
* Create a server group
   $ nova server-group-create --policy affinity group-1
* Boot two instances using the previously created group
  $ nova boot --image IMAGE_ID --flavor 1 --hint group=SERVER_GROUP_UUID vm01
  $ nova boot --image IMAGE_ID --flavor 1 --hint group=SERVER_GROUP_UUID vm02
* Both instances must be running in the same compute node, this can be verified running, as admin: $ nova show INSTANCE_UUID

[Regression Potential]

None expected, this change adds a new command line parameter and a test
for it.

[Other Info]

* This problem only affects Trusty, because Utopic ships python-novaclient 2.19 which comes with support for server groups creation.
* Patch that adds 'server-group-create' operation
  https://github.com/openstack/python-novaclient/commit/c40891b2824805458db40067ab669d961ecfdfed
* Patch that adds --policy to nova boot
  https://github.com/openstack/python-novaclient/commit/376fd9f5bb825e2ce01fc9141c7477f25ac10101

[0] http://docs.openstack.org/icehouse/config-reference/content/section_compute-scheduler.html
[1] http://docs.openstack.org/icehouse/config-reference/content/section_compute-scheduler.html#servergroupaffinityfilter

** Affects: python-novaclient (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: cts

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https://bugs.launchpad.net/bugs/1434150

Title:
  [SRU] missing (anti) affinity support

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