Open Stack

The issue isn't with the configuration of the L3 agent. It's loading the l3
plugin on the Neutron server.

In /etc/neutron/neutron.conf you need to enable the router service
plugin.[1]
service_plugins = router

https://github.com/openstack/neutron/blob/c2b1594ad878b1897468210ccb89fc0d0c4146c4/etc/neutron.conf#L72

On Tue, Nov 18, 2014 at 2:10 PM, Amit Anand <aanand at viimed.com> wrote:

> Hi Salvatore,
>
> Thanks for emailing! So from what I can see from the guide, Im only
> supposed to edit the l3_agent.ini file on the network node. There is
> nothing for l3_agent.ini on controller to edit from the guide. I did see
> this as I continued to troubleshoot after my original email on the
> controller node:
>
>  systemctl status neutron-l3-agent.service
> neutron-l3-agent.service - OpenStack Neutron Layer 3 Agent
>    Loaded: loaded (/usr/lib/systemd/system/neutron-l3-agent.service;
> disabled)
>    Active: failed (Result: exit-code) since Tue 2014-11-18 16:29:19 EST;
> 22min ago
>   Process: 6063 ExecStart=/usr/bin/neutron-l3-agent --config-file
> /usr/share/neutron/neutron-dist.conf --config-file
> /etc/neutron/neutron.conf --config-file /etc/neutron/l3_agent.ini
> --config-file /etc/neutron/fwaas_driver.ini --log-file
> /var/log/neutron/l3-agent.log (code=exited, status=1/FAILURE)
>  Main PID: 6063 (code=exited, status=1/FAILURE)
>
> Nov 18 16:29:19 controller systemd[1]: Started OpenStack Neutron Layer 3
> Agent.
> Nov 18 16:29:19 controller systemd[1]: neutron-l3-agent.service: main
> process exited, code=exited, status=1/FAILURE
> Nov 18 16:29:19 controller systemd[1]: Unit neutron-l3-agent.service
> entered failed state.
> Nov 18 16:31:18 controller systemd[1]: Stopped OpenStack Neutron Layer 3
> Agent.
>
>
> And when I went and looked at these logs I see:
>
> [root at controller neutron]# more l3-agent.log
> 2014-11-18 16:29:19.519 6063 INFO neutron.common.config [-] Logging
> enabled!
> 2014-11-18 16:29:19.520 6063 ERROR neutron.agent.l3_agent [-] An interface
> driver must be specified
>
> So Im not sure if thats what you are talking about - Am I supposed to do
> what I did for the controller node l3_agent.ini I did for the network node
> (below)? What about the compute node? Am I not sure what you mean by having
> l3 plugin not configured in my neutron.conf.  How do I do that? I have
>  service_plugins = router currently. And which neutron.conf do I need to
> edit as I have 3, one for each node.  I will def post this answer up and
> answered when finished on openstack as I cant find any relevant question
> asked about this. Thank you very much!!
>
> *To configure the Layer-3 (L3) agent*
>
> The Layer-3 (L3) agent
> <http://docs.openstack.org/juno/install-guide/install/yum/content/neutron-network-node.html#> provides
> routing services for virtual networks.
>
>    -
>
>    Edit the /etc/neutron/l3_agent.ini file and complete the following
>    actions:
>    1.
>
>       In the [DEFAULT] section, configure the driver, enable network
>       namespaces
>       <http://docs.openstack.org/juno/install-guide/install/yum/content/neutron-network-node.html#>,
>       and configure the external network bridge:
>       [image: Select Text]
>       1
>       2
>       3
>       4
>       5
>       [DEFAULT]
>       ...
>       interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver
>       use_namespaces = True
>       external_network_bridge = br-ex
>       2.
>
>       (Optional) To assist with troubleshooting, enable verbose logging
>       in the [DEFAULT] section:
>       [image: Select Text]
>       1
>       2
>       3
>       [DEFAULT]
>       ...
>       verbose = True
>
>
>
> On Tue, Nov 18, 2014 at 4:18 PM, Salvatore Orlando <sorlando at nicira.com>
> wrote:
>
>> I think you do not have a l3 plugin configured in your neutron.conf -
>> therefore the l3 extension is not being loaded and the router resource does
>> not exist.
>> If the l3 plugin is not there just add it to service_plugins.
>>
>> If the diagnosis is correct, can you post this question to
>> ask.openstack.org (if it's not already there).
>> This is probably a typical problem that many users face when they start
>> deploying neutron.
>>
>> Salvatore
>>
>> On 18 November 2014 22:08, Amit Anand <aanand at viimed.com> wrote:
>>
>>> All,
>>>
>>> So been following the Juno guide and now have arrived to the point where
>>> I need to create the demo-router - but when I run the command this is what
>>> I get:
>>>
>>> [root at controller ~]# source demo-openrc.sh
>>> [root at controller ~]# neutron router-create demo-router
>>> Not Found (HTTP 404) (Request-ID:
>>> req-00fa2ff1-dfb6-4d28-976c-be0f3d500e64
>>>
>>> There is not much more in --debug or logs than that error above. I have
>>> no idea why this is happening. I DID notice one strange thing and maybe
>>> somebody will be able to tell me whats wrong. I configured the controller
>>> and network nodes per guide and to test, run neutron ext-list for
>>> controller node when finished and neutron agent-list for both compute and
>>> network nodes when they are finished. So the weird thing is, for the
>>> network and compute node this is the output:
>>>
>>>  neutron agent-list
>>>
>>> +--------------------------------------+--------------------+----------+-------+----------------+---------------------------+
>>> | id                                   | agent_type         | host     |
>>> alive | admin_state_up | binary                    |
>>>
>>> +--------------------------------------+--------------------+----------+-------+----------------+---------------------------+
>>> | 037f3155-4518-4e67-994f-6703bb860a78 | Metadata agent     | network  |
>>> :-)   | True           | neutron-metadata-agent    |
>>> | 3463361e-bf7a-4b01-afa8-9a4752992a17 | Open vSwitch agent | network  |
>>> :-)   | True           | neutron-openvswitch-agent |
>>> | 561e337e-cb7e-4c98-991a-3a08873464ad | Open vSwitch agent | compute1 |
>>> :-)   | True           | neutron-openvswitch-agent |
>>> | fd1100dd-470c-44ba-b017-3ccd08c3f8fe | DHCP agent         | network  |
>>> :-)   | True           | neutron-dhcp-agent        |
>>>
>>> +--------------------------------------+--------------------+----------+-------+----------------+---------------------------+
>>>
>>> But in the guide it shows neutron-l3-agent running as well! And for the
>>> controller the output is:
>>>
>>>
>>> [root at controller ~]# neutron ext-list
>>> +-----------------------+--------------------------+
>>> | alias                 | name                     |
>>> +-----------------------+--------------------------+
>>> | security-group        | security-group           |
>>> | provider              | Provider Network         |
>>> | binding               | Port Binding             |
>>> | quotas                | Quota management support |
>>> | agent                 | agent                    |
>>> | dhcp_agent_scheduler  | DHCP Agent Scheduler     |
>>> | external-net          | Neutron external network |
>>> | multi-provider        | Multi Provider Network   |
>>> | allowed-address-pairs | Allowed Address Pairs    |
>>> | extra_dhcp_opt        | Neutron Extra DHCP opts  |
>>> +-----------------------+--------------------------+
>>>
>>> As you can see, there a few things missing that are in the Juno guide
>>> example such as l3_agent_scheduler and ext-gw-mode and router among
>>> others...Am I not turning them on somehow? I dont think I missed anything
>>> as Ive done this twice already now and I dont think I can do all the
>>> configuring again without going crazy :-) Appreciate any help!
>>>
>>> neutron ext-list
>>> +-----------------------+-----------------------------------------------+
>>> | alias                 | name                                          |
>>> +-----------------------+-----------------------------------------------+
>>> | security-group        | security-group                                |
>>> | l3_agent_scheduler    | L3 Agent Scheduler                            |
>>> | ext-gw-mode           | Neutron L3 Configurable external gateway mode |
>>> | binding               | Port Binding                                  |
>>> | provider              | Provider Network                              |
>>> | agent                 | agent                                         |
>>> | quotas                | Quota management support                      |
>>> | dhcp_agent_scheduler  | DHCP Agent Scheduler                          |
>>> | l3-ha                 | HA Router extension                           |
>>> | multi-provider        | Multi Provider Network                        |
>>> | external-net          | Neutron external network                      |
>>> | router                | Neutron L3 Router                             |
>>> | allowed-address-pairs | Allowed Address Pairs                         |
>>> | extraroute            | Neutron Extra Route                           |
>>> | extra_dhcp_opt        | Neutron Extra DHCP opts                       |
>>> | dvr                   | Distributed Virtual Router                    |
>>> +-----------------------+------------------------------------------------
>>>
>>>
>>>
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>>>
>>
>
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>


-- 
Kevin Benton
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