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[Chuck Short <chuck.short@xxxxxxxxxxxxx>]

** Also affects: nova/juno
   Importance: Undecided
       Status: New

** Changed in: nova/juno
    Milestone: None => 2014.2.2

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https://bugs.launchpad.net/bugs/1408024

Title:
  Wrong processing BadRequest while adding security group rule

Status in OpenStack Compute (Nova):
  Fix Committed
Status in OpenStack Compute (nova) juno series:
  New

Bug description:
  There is a couple of ways to obtain BadRequest from Neutron in neutron
  driver of security groups. As an example try to add below security
  group rule:

  nova --debug secgroup-add-rule default icmp -1 255 0.0.0.0/0

  Attempt fails and Neutron raises BadRequest. But neutron driver
  doesn't process exception with code 400 and reraises it again as
  NeutronClientException[1]. So this Exception is only handled [2],
  where code of this exceprion isn't processed correctly (because
  Neutron and Nova have different names for attribute with exceprion
  code), so nova throws internal server error instead of BadRequest:

  ERROR (ClientException): The server has either erred or is incapable
  of performing the requested operation. (HTTP 500) (Request-ID: req-
  4775128d-5ef0-4863-b96f-56515c967fb4)

  [1] - https://github.com/openstack/nova/blob/master/nova/network/security_group/neutron_driver.py#L217
  [2] - https://github.com/openstack/nova/blob/master/nova/api/openstack/__init__.py#L97

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