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[Qin Zhao <chaochin@xxxxxxxxx>]

Public bug reported:

When I post an 'attach interface' request to Nova with an invalid
network id, Nova returns an HTTP 500 which informs me that the attach
interface operation fails.

REQ: curl -i 'http://10.90.10.24:8774/v2/19abae5746b242d489d1c2862b228d8b/servers/4e863fad-e868-48a1-8735-2da9a38561e8/os-interface' -X POST -H "Accept: application/json" -H "Content-Type: application/json" -H "User-Agent: python-novaclient" -H "X-Auth-Project-Id: Public" -H "X-Auth-Token: {SHA1}e8bf3f6e4599a94e4ce1625abc3bc8a2dfd2742c" -d '{"interfaceAttachment": {"fixed_ips": [{"ip_address": "10.100.99.170"}], "net_id": "173854d5-333f-4c78-b5a5-10d2e9c8d82z"}}'
INFO (connectionpool:187) Starting new HTTP connection (1): 10.90.10.24
DEBUG (connectionpool:357) "POST /v2/19abae5746b242d489d1c2862b228d8b/servers/4e863fad-e868-48a1-8735-2da9a38561e8/os-interface HTTP/1.1" 500 72
RESP: [500] {'date': 'Wed, 17 Sep 2014 06:13:02 GMT', 'content-length': '72', 'content-type': 'application/json; charset=UTF-8', 'x-compute-request-id': 'req-93700c2a-fab2-42b9-9427-7136ac3f0f59'}
RESP BODY: {"computeFault": {"message": "Failed to attach interface", "code": 500}}


In fact, Nova get an empty network list from Neutron due to my incorrect input. Nova should be able to address the error and return an HTTP 400 error in order to to inform the user to correct the network id in request.

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1370359

Title:
  HTTP 500 is returned when using an invalid network id to attach
  interface

Status in OpenStack Compute (Nova):
  New

Bug description:
  When I post an 'attach interface' request to Nova with an invalid
  network id, Nova returns an HTTP 500 which informs me that the attach
  interface operation fails.

  REQ: curl -i 'http://10.90.10.24:8774/v2/19abae5746b242d489d1c2862b228d8b/servers/4e863fad-e868-48a1-8735-2da9a38561e8/os-interface' -X POST -H "Accept: application/json" -H "Content-Type: application/json" -H "User-Agent: python-novaclient" -H "X-Auth-Project-Id: Public" -H "X-Auth-Token: {SHA1}e8bf3f6e4599a94e4ce1625abc3bc8a2dfd2742c" -d '{"interfaceAttachment": {"fixed_ips": [{"ip_address": "10.100.99.170"}], "net_id": "173854d5-333f-4c78-b5a5-10d2e9c8d82z"}}'
  INFO (connectionpool:187) Starting new HTTP connection (1): 10.90.10.24
  DEBUG (connectionpool:357) "POST /v2/19abae5746b242d489d1c2862b228d8b/servers/4e863fad-e868-48a1-8735-2da9a38561e8/os-interface HTTP/1.1" 500 72
  RESP: [500] {'date': 'Wed, 17 Sep 2014 06:13:02 GMT', 'content-length': '72', 'content-type': 'application/json; charset=UTF-8', 'x-compute-request-id': 'req-93700c2a-fab2-42b9-9427-7136ac3f0f59'}
  RESP BODY: {"computeFault": {"message": "Failed to attach interface", "code": 500}}

  
  In fact, Nova get an empty network list from Neutron due to my incorrect input. Nova should be able to address the error and return an HTTP 400 error in order to to inform the user to correct the network id in request.

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