neutron-lbaasv2-agent: TypeError: argument of type 'LoadBalancer' is not iterable

[Francois Deppierraz]

Is somebody actually running neutron LBaaSv2 with haproxy on Ubuntu 16.04?

root@controller1:~# dpkg -l neutron-lbaasv2-agent
ii neutron-lbaasv2-agent 2:8.3.0-0ubuntu1 all Neutron is a virtual network service for Openstack - LBaaSv2 agent
root@controller1:~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.2 LTS
Release: 16.04
Codename: xenial
root@controller1:~#

From /var/log/neutron/neutron-lbaasv2-agent.log:

2017-03-19 20:39:06.694 4528 INFO neutron.common.config [-] Logging enabled!
2017-03-19 20:39:06.694 4528 INFO neutron.common.config [-] /usr/bin/neutron-lbaasv2-agent version 8.3.0
2017-03-19 20:39:06.702 4528 WARNING oslo_config.cfg [req-9a6a669c-5a5a-4b6c-8c2f-2b1edd9462d9 - - - - -] Option "default_ipv6_subnet_pool" from group "DEFAULT" is deprecated for removal. Its value may be silently ignored in the future.
2017-03-19 20:39:07.033 4528 ERROR neutron_lbaas.services.loadbalancer.drivers.haproxy.namespace_driver [-] <neutron_lbaas.services.loadbalancer.data_models.LoadBalancer object at 0x7f881b430e90>
2017-03-19 20:39:07.034 4528 ERROR neutron_lbaas.agent.agent_manager [-] Unable to deploy instance for loadbalancer: c49473a7-b956-4a5d-8215-703335eb3320
2017-03-19 20:39:07.034 4528 ERROR neutron_lbaas.agent.agent_manager Traceback (most recent call last):
2017-03-19 20:39:07.034 4528 ERROR neutron_lbaas.agent.agent_manager File "/usr/lib/python2.7/dist-packages/neutron_lbaas/agent/agent_manager.py", line 185, in _reload_loadbalancer
2017-03-19 20:39:07.034 4528 ERROR neutron_lbaas.agent.agent_manager self.device_drivers[driver_name].deploy_instance(loadbalancer)
2017-03-19 20:39:07.034 4528 ERROR neutron_lbaas.agent.agent_manager File "/usr/lib/python2.7/dist-packages/oslo_concurrency/lockutils.py", line 274, in inner
2017-03-19 20:39:07.034 4528 ERROR neutron_lbaas.agent.agent_manager return f(*args, **kwargs)
2017-03-19 20:39:07.034 4528 ERROR neutron_lbaas.agent.agent_manager File "/usr/lib/python2.7/dist-packages/neutron_lbaas/services/loadbalancer/drivers/haproxy/namespace_driver.py", line 332, in deploy_instance
2017-03-19 20:39:07.034 4528 ERROR neutron_lbaas.agent.agent_manager if not logical_config or not self._is_active(logical_config):
2017-03-19 20:39:07.034 4528 ERROR neutron_lbaas.agent.agent_manager File "/usr/lib/python2.7/dist-packages/neutron_lbaas/services/loadbalancer/drivers/haproxy/namespace_driver.py", line 310, in _is_active
2017-03-19 20:39:07.034 4528 ERROR neutron_lbaas.agent.agent_manager if ('vip' not in logical_config or
2017-03-19 20:39:07.034 4528 ERROR neutron_lbaas.agent.agent_manager TypeError: argument of type 'LoadBalancer' is not iterable
2017-03-19 20:39:07.034 4528 ERROR neutron_lbaas.agent.agent_manager

/etc/neutron/neutron_lbaas.conf:
[service_providers]
service_provider=LOADBALANCER:Haproxy:neutron_lbaas.services.loadbalancer.drivers.haproxy.plugin_driver.HaproxyOnHostPluginDriver:default
service_provider = LOADBALANCERV2:Haproxy:neutron_lbaas.drivers.haproxy.plugin_driver.HaproxyOnHostPluginDriver:default

Looking at the code, I don't see how this can actually works.

/usr/lib/python2.7/dist-packages/neutron_lbaas/services/loadbalancer/drivers/haproxy/namespace_driver.py +310

    def _is_active(self, logical_config):
        LOG.error(logical_config)
        # haproxy wil be unable to start without any active vip
==> if ('vip' not in logical_config or
                (logical_config['vip']['status'] not in
                 constants.ACTIVE_PENDING_STATUSES) or
                not logical_config['vip']['admin_state_up']):
            return False

/usr/lib/python2.7/dist-packages/neutron_lbaas/services/loadbalancer/data_models.py:

class LoadBalancer(BaseDataModel):

    fields = ['id', 'tenant_id', 'name', 'description', 'vip_subnet_id',
              'vip_port_id', 'vip_address', 'provisioning_status',
              'operating_status', 'admin_state_up', 'vip_port', 'stats',
              'provider', 'listeners', 'pools', 'flavor_id']

    def __init__(self, id=None, tenant_id=None, name=None, description=None,
                 vip_subnet_id=None, vip_port_id=None, vip_address=None,
                 provisioning_status=None, operating_status=None,
                 admin_state_up=None, vip_port=None, stats=None,
                 provider=None, listeners=None, pools=None, flavor_id=None):
        self.id = id
        self.tenant_id = tenant_id
        self.name = name
        self.description = description
        self.vip_subnet_id = vip_subnet_id
        self.vip_port_id = vip_port_id
        self.vip_address = vip_address
        self.operating_status = operating_status
        self.provisioning_status = provisioning_status
        self.admin_state_up = admin_state_up
        self.vip_port = vip_port
        self.stats = stats
        self.provider = provider
        self.listeners = listeners or []
        self.flavor_id = flavor_id
        self.pools = pools or []

[Akihiro Motoki (amotoki)]

neutron-lbaas is now a separate project "octavia". octavia is in charge of neutron-lbaas project as well.

[brenda (tian-mingming)]

It seems not a bug. The reason of this is using a v1 haproxy driver not v2.

[Michael Johnson (johnsom)]

Marking invalid due to v1 driver.