haproxy failing on precise due to ipv6 addresses in conf

cinder (/next charm) is not binding to tcp 8776 on precise

## cli fails:
ubuntu@beisner-bastion:~/bzr/openstack-charm-testing⟫ cinder list
ERROR: Unable to establish connection: HTTPConnectionPool(host='10.5.3.84', port=8776): Max retries exceeded with url: /v1/aa14bdc59aea4e0a9368a954e1f4b464/volumes/detail (Caused by <class 'socket.error'>: [Errno 111] Connection refused)

## fyi other cloud cli ok
ubuntu@beisner-bastion:~/bzr/openstack-charm-testing⟫ nova list
+----+------+--------+------------+-------------+----------+
| ID | Name | Status | Task State | Power State | Networks |
+----+------+--------+------------+-------------+----------+
+----+------+--------+------------+-------------+----------+

## keystone service-list && keystone endpoint-list:
http://paste.ubuntu.com/9553373/

## cinder unit log
2014-12-17 18:42:37 INFO juju-log identity-service:29: Wrote template /etc/haproxy/haproxy.cfg.
2014-12-17 18:42:37 INFO identity-service-relation-changed Site openstack_https_frontend already disabled
2014-12-17 18:42:37 INFO identity-service-relation-changed cinder-api stop/waiting
2014-12-17 18:42:37 INFO identity-service-relation-changed cinder-api start/running, process 16101
2014-12-17 18:42:37 INFO identity-service-relation-changed cinder-volume stop/waiting
2014-12-17 18:42:37 INFO identity-service-relation-changed cinder-volume start/running, process 16111
2014-12-17 18:42:37 INFO identity-service-relation-changed cinder-scheduler stop/waiting
2014-12-17 18:42:37 INFO identity-service-relation-changed cinder-scheduler start/running, process 16121
2014-12-17 18:42:37 INFO identity-service-relation-changed * Restarting haproxy haproxy
2014-12-17 18:42:37 INFO identity-service-relation-changed [ALERT] 350/184237 (16125) : Starting frontend tcp-in_cinder_api: cannot bind socket
2014-12-17 18:42:37 INFO identity-service-relation-changed ...fail!
Reading package lists... Doneage-backend-relation-joined
Building dependency tree e-backend-relation-joined
Reading state information... Donebackend-relation-joined
2014-12-17 18:42:42 INFO juju-log storage-backend:30: Registered config file: /etc/cinder/api-paste.ini
2014-12-17 18:42:42 INFO juju-log storage-backend:30: Registered config file: /etc/cinder/cinder.conf
2014-12-17 18:42:42 INFO juju-log storage-backend:30: Registered config file: /etc/haproxy/haproxy.cfg
2014-12-17 18:42:42 INFO juju-log storage-backend:30: Registered config file: /etc/apache2/sites-available/openstack_https_frontend
2014-12-17 18:42:42 INFO juju-log storage-backend:30: [cinder] Unknown hook storage-backend-relation-joined - skipping.

## cinder unit net stat
ubuntu@juju-beis0-machine-5:/var/log/cinder$ sudo netstat -taupn
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 10883/apache2
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 800/sshd
tcp 0 0 0.0.0.0:3260 0.0.0.0:* LISTEN 7868/tgtd
tcp 0 0 0.0.0.0:8766 0.0.0.0:* LISTEN 16578/python
tcp 0 0 10.5.3.84:32987 10.5.3.90:3306 ESTABLISHED 16621/python
tcp 0 240 10.5.3.84:22 10.5.3.80:56387 ESTABLISHED 16902/sshd: ubuntu
tcp 0 0 10.5.3.84:44890 10.5.3.80:17070 ESTABLISHED 4261/jujud
tcp 0 0 10.5.3.84:32986 10.5.3.90:3306 ESTABLISHED 16598/python
tcp 0 0 10.5.3.84:51008 10.5.3.97:5672 ESTABLISHED 16598/python
tcp 0 0 10.5.3.84:44894 10.5.3.80:17070 ESTABLISHED 4310/jujud
tcp 0 0 10.5.3.84:51010 10.5.3.97:5672 ESTABLISHED 16621/python
tcp 0 0 10.5.3.84:44946 10.5.3.80:17070 ESTABLISHED 11031/jujud
tcp 0 0 10.5.3.84:47952 10.5.3.80:6514 ESTABLISHED 11116/rsyslogd
tcp 0 0 10.5.3.84:51011 10.5.3.97:5672 ESTABLISHED 16621/python
tcp 0 0 10.5.3.84:51004 10.5.3.97:5672 ESTABLISHED 16598/python
tcp6 0 0 :::22 :::* LISTEN 800/sshd
tcp6 0 0 :::3260 :::* LISTEN 7868/tgtd
udp 0 0 0.0.0.0:68 0.0.0.0:* 585/dhclient3

## cinder unit versions
ubuntu@juju-beis0-machine-5:/var/log/cinder$ apt-cache policy cinder-api cinder-common python-cinder
cinder-api:
  Installed: 1:2014.1.3-0ubuntu1~cloud0
  Candidate: 1:2014.1.3-0ubuntu1~cloud0
  Version table:
 *** 1:2014.1.3-0ubuntu1~cloud0 0
        500 http://ubuntu-cloud.archive.canonical.com/ubuntu/ precise-updates/icehouse/main amd64 Packages
        100 /var/lib/dpkg/status
cinder-common:
  Installed: 1:2014.1.3-0ubuntu1~cloud0
  Candidate: 1:2014.1.3-0ubuntu1~cloud0
  Version table:
 *** 1:2014.1.3-0ubuntu1~cloud0 0
        500 http://ubuntu-cloud.archive.canonical.com/ubuntu/ precise-updates/icehouse/main amd64 Packages
        100 /var/lib/dpkg/status
python-cinder:
  Installed: 1:2014.1.3-0ubuntu1~cloud0
  Candidate: 1:2014.1.3-0ubuntu1~cloud0
  Version table:
 *** 1:2014.1.3-0ubuntu1~cloud0 0
        500 http://ubuntu-cloud.archive.canonical.com/ubuntu/ precise-updates/icehouse/main amd64 Packages
        100 /var/lib/dpkg/status

ubuntu@juju-beis0-machine-5:/var/log/cinder$ uname -a
Linux juju-beis0-machine-5 3.2.0-74-virtual #109-Ubuntu SMP Tue Dec 9 17:04:48 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

ubuntu@juju-beis0-machine-5:/var/log/cinder$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.5 LTS
Release: 12.04
Codename: precise

## connectivity is good
1 ubuntu@beisner-bastion:~/bzr/openstack-charm-testing⟫ ping -c 2 10.5.3.84
PING 10.5.3.84 (10.5.3.84) 56(84) bytes of data.
64 bytes from 10.5.3.84: icmp_seq=1 ttl=64 time=1.16 ms
64 bytes from 10.5.3.84: icmp_seq=2 ttl=64 time=0.385 ms

--- 10.5.3.84 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 0.385/0.774/1.164/0.390 ms

ubuntu@beisner-bastion:~/bzr/openstack-charm-testing⟫ ssh 10.5.3.84
Warning: Permanently added '10.5.3.84' (ECDSA) to the list of known hosts.
Welcome to Ubuntu 12.04.5 LTS (GNU/Linux 3.2.0-74-virtual x86_64)