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[Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>]

** Changed in: nova
       Status: Fix Committed => Fix Released

** Changed in: nova
    Milestone: None => havana-2

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https://bugs.launchpad.net/bugs/1193376

Title:
  Don't attach to multiple Quantum networks by default

Status in OpenStack Compute (Nova):
  Fix Released

Bug description:
  If no networking information is passed to a create request Nova will
  connect the instance to all available networks.

  Whilst this may make sense in Nova Networking (where the networks are
  mainly controlled by the cloud provider) in a Quantum configuration,
  where the user may have many networks it really doesn't make sense to
  allow this, as the network order is non-deterministic and most guest
  OS's will only set up the first network (which may not be the one
  which is externally route-able.

  To prevent the user getting into this state, the system should reject
  requests with no networking information when more than one quantum
  network is available, so that the user is made to specify them in the
  required order.

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