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[Bug 1442004] Re: instance group data model allows multiple polices

 

This wishlist bug has been open a year without any activity. I'm going
to move it to "Opinion / Wishlist", which is an easily-obtainable queue
of older requests that have come on. If you decide to work on this
consider using a blueprint [1] (maybe with a spec [2]). I'll recommend to 
read [3] if not yet done. 

References:
[1] https://blueprints.launchpad.net/nova/
[2] https://github.com/openstack/nova-specs
[3] https://wiki.openstack.org/wiki/Blueprints

** Changed in: nova
       Status: Confirmed => Opinion

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https://bugs.launchpad.net/bugs/1442004

Title:
  instance group data model allows multiple polices

Status in OpenStack Compute (nova):
  Opinion

Bug description:
  Now only two policy available, but only one can be used with a server
  group.

  $  nova server-group-create name "affinity" "anti-affinity"
  ERROR (BadRequest): Invalid input received: Conflicting policies configured! (HTTP 400) (Request-ID: req-1af553f8-5fd6-4227-870b-be963aad2b62)
  $  nova server-group-create name "affinity" "affinity"
  ERROR (BadRequest): Invalid input received: Duplicate policies configured! (HTTP 400) (Request-ID: req-4b697798-89ec-48e1-9840-5e627c08657b)

  The https://review.openstack.org/#/c/168372/1/specs/liberty/approved/soft-affinity-for-server-group.rst,cm,
  contains two additional policy name,  but

  "These new soft-affinity and soft-anti-affinity policies are mutually
  exclusive with each other and with the other existing server-group
  policies."

  Suggesting to remove the 'instance_group_policy' table and add the
  'policy' field to the 'instance_groups' tables.

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References