Created attachment 969508 [details]
lbaas-agent.log

Description of problem:
=======================
IPv6 VIP remains in ERROR state due to haproxy cannot bind socket.

neutron.services.loadbalancer.agent.agent_manager Traceback (most recent call last):
neutron.services.loadbalancer.agent.agent_manager   File "/usr/lib/python2.7/site-packages/neutron/services/loadbalancer/agent/agent_manager.py", line 214, in create_vip
neutron.services.loadbalancer.agent.agent_manager     driver.create_vip(vip)
neutron.services.loadbalancer.agent.agent_manager   File "/usr/lib/python2.7/site-packages/neutron/services/loadbalancer/drivers/haproxy/namespace_driver.py", line 318, in create_vip
neutron.services.loadbalancer.agent.agent_manager     self._refresh_device(vip['pool_id'])
neutron.services.loadbalancer.agent.agent_manager   File "/usr/lib/python2.7/site-packages/neutron/services/loadbalancer/drivers/haproxy/namespace_driver.py", line 315, in _refresh_device
neutron.services.loadbalancer.agent.agent_manager     self.deploy_instance(logical_config)
neutron.services.loadbalancer.agent.agent_manager   File "/usr/lib/python2.7/site-packages/neutron/openstack/common/lockutils.py", line 249, in inner
neutron.services.loadbalancer.agent.agent_manager     return f(*args, **kwargs)
neutron.services.loadbalancer.agent.agent_manager   File "/usr/lib/python2.7/site-packages/neutron/services/loadbalancer/drivers/haproxy/namespace_driver.py", line 311, in deploy_instance
neutron.services.loadbalancer.agent.agent_manager     self.create(logical_config)
neutron.services.loadbalancer.agent.agent_manager   File "/usr/lib/python2.7/site-packages/neutron/services/loadbalancer/drivers/haproxy/namespace_driver.py", line 92, in create
neutron.services.loadbalancer.agent.agent_manager     self._spawn(logical_config)
neutron.services.loadbalancer.agent.agent_manager   File "/usr/lib/python2.7/site-packages/neutron/services/loadbalancer/drivers/haproxy/namespace_driver.py", line 115, in _spawn
neutron.services.loadbalancer.agent.agent_manager     ns.netns.execute(cmd)
neutron.services.loadbalancer.agent.agent_manager   File "/usr/lib/python2.7/site-packages/neutron/agent/linux/ip_lib.py", line 550, in execute
neutron.services.loadbalancer.agent.agent_manager     check_exit_code=check_exit_code, extra_ok_codes=extra_ok_codes)
neutron.services.loadbalancer.agent.agent_manager   File "/usr/lib/python2.7/site-packages/neutron/agent/linux/utils.py", line 84, in execute
neutron.services.loadbalancer.agent.agent_manager     raise RuntimeError(m)
neutron.services.loadbalancer.agent.agent_manager RuntimeError: 
neutron.services.loadbalancer.agent.agent_manager Command: ['sudo', 'neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'ip', 'netns', 'exec',


Version-Release number of selected component (if applicable):
=============================================================
RHEL-OSP6-Beta: 2014-12-12.1
openstack-neutron-2014.2.1-2.el7ost.noarch
haproxy-1.5.2-3.el7_0.x86_64

How reproducible:
=================
2/2

Steps to Reproduce:
===================
1. Spawn Two instances and wait for them to become active
    Via tenant_a:
    nova boot tenant_a_instance --flavor m1.small --image <image_id> --min-count 2 --key-name tenant_a_keypair --security-groups default --nic net-id=<internal_ipv4_a_id> --nic net-id=<tenant_a_radvd_stateful_id>

2. Retrive your instances IPv6 addresses, tenant id and the subnet id you are about to use.
   You may use any IPv6 subnet, in this example we'll use tenant_a_radvd_stateful_subnet
   # nova list | awk '/tenant_a_instance/ {print $12}' | cut -d"=" -f2 | sed -e s/\;\//
   # neutron subnet-list | awk '/tenant_a_radvd_stateful_subnet/ {print $2}'

3. Create a LBaaS pool
   # neutron lb-pool-create --lb-method ROUND_ROBIN --name Ipv6_LBaaS --protocol HTTP --subnet-id c54f8745-2aba-42da-8845-15050db1d5d1

4. Add members to the pool
   # neutron lb-member-create Ipv6_LBaaS --address 2001:65:65:65:f816:3eff:feda:b05e --protocol-port 80
   # neutron lb-member-create Ipv6_LBaaS --address 2001:65:65:65:f816:3eff:fe82:5d8 --protocol-port 80

5. Create a VIP:
   # neutron lb-vip-create Ipv6_LBaaS --name Ipv6_LBaaS_VIP --protocol-port 80 --protocol HTTP --subnet-id 0458273a-efe8-4d37-b2a0-e11cbd5e4d13

6. Check the VIP status:
   # neutron lb-vip-show Ipv6_LBaaS_VIP | grep status

Actual results:
===============
1. status = ERROR

2. lbaas-agent.log (attached):
 
TRACE neutron.services.loadbalancer.agent.agent_manager Stderr: '[ALERT] 349/101731 (20878) : Starting frontend fcb9db64-e877-4e95-a86f-fed6d1b244c2: cannot bind socket [2001:64:64:64::a:80]\n'

Expected results:
=================
IPv6 VIP should work.

Additional info:
================
haproxy configuration:
global
        daemon
        user nobody
        group haproxy
        log /dev/log local0
        log /dev/log local1 notice
        stats socket /var/lib/neutron/lbaas/2c18a738-05f4-4099-8348-94575c9ed290/sock mode 0666 level user
defaults
        log global
        retries 3
        option redispatch
        timeout connect 5000
        timeout client 50000
        timeout server 50000
frontend cb833240-d5ed-43b9-9ef1-5bc70e961366
        option tcplog
        bind 2001:65:65:65:f816:3eff:fe86:d7ce:80
        mode http
        default_backend 2c18a738-05f4-4099-8348-94575c9ed290
        option forwardfor
backend 2c18a738-05f4-4099-8348-94575c9ed290
        mode http
        balance roundrobin
        option forwardfor
        timeout check 3s
        option httpchk GET /
        http-check expect rstatus 200
        server a2b475f0-3247-49d4-8e04-bf570ffc9fb2 2001:65:65:65:f816:3eff:fe82:5d8:80 weight 1 check inter 3s fall 1
        server ab96b468-3950-47ea-a37b-f9b9fab7485b 2001:65:65:65:f816:3eff:feda:b05e:80 weight 1 check inter 3s fall 1