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Neutron : router-gateway-set vers un réseau externe échoue

2015-11-24

Neutron : router-gateway-set vers un réseau externe échoue

Machine-translated — the English original is authoritative.

Aujourd'hui, on m'a demandé d'enquêter sur un « réseau OpenStack défaillant » où un client évaluait le produit depuis un mois. Comme toujours, rien n'a été modifié, cela a simplement cessé de fonctionner 😉

Un autre défi de cette mission était que je n'avais pas accès direct au système – j'étais dans un autre pays et l'accès à distance ne m'a pas été accordé. J'ai donc créé un document Google avec une liste détaillée de commandes et je l'ai partagé avec l'opérateur OpenStack, et nous l'avons utilisé comme base pour notre collaboration et notre enquête. Les deux prochains articles de blog sont essentiellement le document final qui a été généré.

La plainte initiale était que le réseau externe ne fonctionnait pas.

Voici à quoi ressemblait l'échec :

root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# neutron router-gateway-set 8c8a0159-2b37-4fae-93e9-b302a9d59573 35510045-decf-491e-9990-87a3f77f0284

Request Failed: internal server error while processing your request.

N'oubliez pas que vous pouvez ajouter l'option « –debug » pour obtenir une sortie plus verbeuse..

root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# neutron --debug router-gateway-set 8c8a0159-2b37-4fae-93e9-b302a9d59573 35510045-decf-491e-9990-87a3f77f0284

DEBUG: keystoneclient.session REQ: curl -i -X GET https://10.254.25.35:5000/v2.0 -H "Accept: application/json" -H "User-Agent: python-keystoneclient"

DEBUG: keystoneclient.session RESP: [200] content-length: 423 vary: X-Auth-Token keep-alive: timeout=5, max=100 server: Apache/2.4.10 (Debian) connection: Keep-Alive date: Fri, 20 Nov 2015 16:27:30 GMT content-type: application/json

RESP BODY: {"version": {"status": "stable", "updated": "2014-04-17T00:00:00Z", "media-types": [{"base": "application/json", "type": "application/vnd.openstack.identity-v2.0+json"}, {"base": "application/xml", "type": "application/vnd.openstack.identity-v2.0+xml"}], "id": "v2.0", "links": [{"href": "https://10.254.25.35:5000/v2.0/", "rel": "self"}, {"href": "http://docs.openstack.org/", "type": "text/html", "rel": "describedby"}]}}

DEBUG: neutronclient.neutron.v2_0.router.SetGatewayRouter run(Namespace(disable_snat=False, external_network_id=u'35510045-decf-491e-9990-87a3f77f0284', request_format='json', router_id=u'8c8a0159-2b37-4fae-93e9-b302a9d59573'))

DEBUG: keystoneclient.auth.identity.v2 Making authentication request to https://10.254.25.35:5000/v2.0/tokens

DEBUG: keystoneclient.session REQ: curl -i -X GET https://10.254.25.35:9696/v2.0/routers.json?fields=id&id=8c8a0159-2b37-4fae-93e9-b302a9d59573 -H "User-Agent: python-neutronclient" -H "Accept: application/json" -H "X-Auth-Token: {SHA1}04e2fb3010f4069945373862d00e12d9e34c488a"

DEBUG: keystoneclient.session RESP: [200] date: Fri, 20 Nov 2015 16:27:31 GMT connection: keep-alive content-type: application/json; charset=UTF-8 content-length: 61 x-openstack-request-id: req-b6469ccc-b81e-4ae1-82ea-e0413bd46f3d

RESP BODY: {"routers": [{"id": "8c8a0159-2b37-4fae-93e9-b302a9d59573"}]}

DEBUG: keystoneclient.session REQ: curl -i -X GET https://10.254.25.35:9696/v2.0/networks.json?fields=id&id=35510045-decf-491e-9990-87a3f77f0284 -H "User-Agent: python-neutronclient" -H "Accept: application/json" -H "X-Auth-Token: {SHA1}04e2fb3010f4069945373862d00e12d9e34c488a"

DEBUG: keystoneclient.session RESP: [200] date: Fri, 20 Nov 2015 16:27:31 GMT connection: keep-alive content-type: application/json; charset=UTF-8 content-length: 62 x-openstack-request-id: req-e39fba85-c775-4296-a52f-a83731a5b5f2

RESP BODY: {"networks": [{"id": "35510045-decf-491e-9990-87a3f77f0284"}]}

DEBUG: keystoneclient.session REQ: curl -i -X PUT https://10.254.25.35:9696/v2.0/routers/8c8a0159-2b37-4fae-93e9-b302a9d59573.json -H "User-Agent: python-neutronclient" -H "Content-Type: application/json" -H "Accept: application/json" -H "X-Auth-Token: {SHA1}04e2fb3010f4069945373862d00e12d9e34c488a" -d '{"router": {"external_gateway_info": {"network_id": "35510045-decf-491e-9990-87a3f77f0284"}}}'

DEBUG: keystoneclient.session RESP:

DEBUG: neutronclient.v2_0.client Error message: {"NeutronError": {"message": "Request Failed: internal server error while processing your request.", "type": "HTTPInternalServerError", "detail": ""}}

ERROR: neutronclient.shell Request Failed: internal server error while processing your request.

Traceback (most recent call last):

 File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutronclient/shell.py", line 701, in run_subcommand

   return run_command(cmd, cmd_parser, sub_argv)

 File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutronclient/shell.py", line 92, in run_command

   return cmd.run(known_args)

 File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutronclient/neutron/v2_0/router.py", line 205, in run

   neutron_client.add_gateway_router(_router_id, router_dict)

 File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 98, in with_params

   ret = self.function(instance, *args, **kwargs)

 File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 432, in add_gateway_router

   body={'router': {'external_gateway_info': body}})

 File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 1322, in put

   headers=headers, params=params)

 File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 1290, in retry_request

   headers=headers, params=params)

 File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 1244, in do_request

   self._handle_fault_response(status_code, replybody)

 File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 1218, in _handle_fault_response

   exception_handler_v20(status_code, des_error_body)

 File "/opt/stack/venvs/openstack/local/lib/python2.7/site-packages/neutronclient/v2_0/client.py", line 66, in exception_handler_v20

   status_code=status_code)

InternalServerError: Request Failed: internal server error while processing your request.

Vérifiez les fichiers journaux du routeur qui a été créé comme suit :

grep 8c8a0159-2b37-4fae-93e9-b302a9d59573 -l -R /var/log/*

root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# grep 8c8a0159-2b37-4fae-93e9-b302a9d59573 -l -R /var/log/*

/var/log/horizon/horizon-json.log

/var/log/horizon/horizon_error.log

/var/log/neutron/neutron-json.log

/var/log/neutron/neutron.log

L'investigation du fichier neutron.log révèle la cause racine du problème –

« TooManyExternalNetworks: More than one external network exists »

neutron.log

Une vérification rapide avec neutron révèle l'existence de deux réseaux externes – non pris en charge par cette version d'OpenStack.

root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# neutron net-external-list

+--------------------------------------+---------+-----------------------------------------------------+

| id                                    | name  | subnets                                               |

+--------------------------------------+---------+-----------------------------------------------------+

| 35510045-decf-491e-9990-87a3f77f0284 | ext-net | bfaacf82-7a4f-4e0c-aab9-94f705dc2c11 10.254.27.0/24 |

| f917a3eb-957a-4c0a-baa8-8b20607440a0 | direct  |                                                       |

+--------------------------------------+---------+-----------------------------------------------------+

La solution est simple – supprimez le deuxième réseau externe.

Supprimez le nouveau réseau externe appelé direct.

Listez tous les réseaux actuels

neutron net-list

root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# neutron net-list

+--------------------------------------+-------------+-------------------------------------------------------+

| id                                    | name  | subnets                                                    |

+--------------------------------------+-------------+-------------------------------------------------------+

| 35510045-decf-491e-9990-87a3f77f0284 | ext-net | bfaacf82-7a4f-4e0c-aab9-94f705dc2c11 10.254.27.0/24   |

| 4259ab26-a1c4-427e-a7e0-b941368c4e23 | default-net | d20f33e0-82f1-4ce1-80cf-17a27c86d11c 172.0.100.0/24   |

| 73ff3b91-77ad-4ef4-aa67-a99a5ef57650 | demo_net1   | 4a20b788-da40-48a0-b459-5034d2831adf 192.168.111.0/24 |

| a493f23f-3646-49c5-a342-82c0ac7601f6 | lab2-net| 75542425-b437-4433-a9d8-3009527e1435 192.168.1.0/24   |

| d2ad4daa-d004-40bd-afa8-b7e19b8dde67 | HPinternal  | 28d80588-9bf1-415e-a1f3-b08d95d5bf14 10.0.0.0/24  |

| e70da3b0-ad8d-4ec0-9dd7-40ba563d2416 | SVC    | 57929850-9c6a-4917-a8a4-61c033d72705 10.254.26.0/24   |

| e99f2cdd-eb42-4466-9b17-7cb85636c013 | lab1-net1   | 60b9efc0-081f-45fd-b06c-0ce88fc04d50 192.168.113.0/24 |

| f917a3eb-957a-4c0a-baa8-8b20607440a0 | direct  |   |

+--------------------------------------+-------------+-------------------------------------------------------+

Identifiez les réseaux externes

neutron net-external-list

root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# neutron net-external-list

+--------------------------------------+---------+-----------------------------------------------------+

| id                                    | name      | subnets |

+--------------------------------------+---------+-----------------------------------------------------+

| 35510045-decf-491e-9990-87a3f77f0284 | ext-net | bfaacf82-7a4f-4e0c-aab9-94f705dc2c11 10.254.27.0/24 |

| f917a3eb-957a-4c0a-baa8-8b20607440a0 | direct  |                                                      |

+--------------------------------------+---------+-----------------------------------------------------+

Supprimez le réseau externe supplémentaire

neutron net-delete direct

root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# neutron net-delete direct

Deleted network: direct

root@overcloud-ce-controller-controller0-dlmy4f5tbc5d:~# neutron net-list

+--------------------------------------+-------------+-------------------------------------------------------+

| id                                    | name          | subnets   |

+--------------------------------------+-------------+-------------------------------------------------------+

| 35510045-decf-491e-9990-87a3f77f0284 | ext-net    | bfaacf82-7a4f-4e0c-aab9-94f705dc2c11 10.254.27.0/24   |

| 4259ab26-a1c4-427e-a7e0-b941368c4e23 | default-net | d20f33e0-82f1-4ce1-80cf-17a27c86d11c 172.0.100.0/24   |

| 73ff3b91-77ad-4ef4-aa67-a99a5ef57650 | demo_net1   | 4a20b788-da40-48a0-b459-5034d2831adf 192.168.111.0/24 |

| a493f23f-3646-49c5-a342-82c0ac7601f6 | lab2-net   | 75542425-b437-4433-a9d8-3009527e1435 192.168.1.0/24   |

| d2ad4daa-d004-40bd-afa8-b7e19b8dde67 | HPinternal  | 28d80588-9bf1-415e-a1f3-b08d95d5bf14 10.0.0.0/24  |

| e70da3b0-ad8d-4ec0-9dd7-40ba563d2416 | SVC        | 57929850-9c6a-4917-a8a4-61c033d72705 10.254.26.0/24   |

| e99f2cdd-eb42-4466-9b17-7cb85636c013 | lab1-net1   | 60b9efc0-081f-45fd-b06c-0ce88fc04d50 192.168.113.0/24 |

+--------------------------------------+-------------+-------------------------------------------------------+

Le prochain article de blog vérifiera la santé des services de base Helion OpenStack et du réseau neutron.

Originally published on allthingscloud.eu (2015-11-24).

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