Comment 0 for bug 1678124

Under Juju 2.1.2.2, latest charmhelpers sync'ed on 21 March '17.

root@juju-a2afdd-18-lxd-0:/# grep ipv6.disable /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-4.4.0-62-generic root=UUID=1e32ba7f-a20c-4126-a910-e7d47da82d1c ro console=tty0 console=ttyS1,115200n8 net.ifnames=0 ipv6.disable=1 nomdmonddf nomdmonisw
root@juju-a2afdd-18-lxd-0:/# grep ip6-localhost /etc/memcached.conf -B3
# Specify which IP address to listen on. The default is to listen on all IP addresses
# This parameter is one of the only security measures that memcached has, so make sure
# it's listening on a firewalled interface.
-l ip6-localhost
root@juju-a2afdd-18-lxd-0:/# grep memcached_servers /etc/cinder/cinder.conf
memcached_servers = inet6:[::1]:11211
root@juju-a2afdd-18-lxd-0:/# cat /var/log/memcached.log
failed to listen on TCP port 11211: Address family not supported by protocol
failed to listen on TCP port 11211: Address family not supported by protocol
failed to listen on TCP port 11211: Address family not supported by protocol

Effected charms, at least:
 - cinder
 - glance
 - ceilometer

Applied patch will be attached right away.