Comment 18 for bug 1477198

This worked for me in trusty with the proposed cloud-archive repository.

Before, when I restarted haproxy, I got an extra process:
root@juju-machine-2-lxc-0:~# service haproxy restart
 * Restarting haproxy haproxy
   ...done.
root@juju-machine-2-lxc-0:~# ps fxaw|grep haproxy
  32215 ? Ss 0:00 /usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg -D -p /var/run/haproxy.pid
  32547 ? Ss 0:00 /usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg -D -p /var/run/haproxy.pid

Now it's just one as expected, replacing the one that was running before:

root@juju-machine-2-lxc-0:~# ps fxaw|grep haproxy
  33493 pts/3 S+ 0:00 \_ grep --color=auto haproxy
  33483 ? Ss 0:00 /usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg -p /var/run/haproxy.pid -D -sf 33115

root@juju-machine-2-lxc-0:~# service haproxy restart
 * Restarting haproxy haproxy
   ...done.

root@juju-machine-2-lxc-0:~# ps fxaw|grep haproxy
  33510 pts/3 S+ 0:00 \_ grep --color=auto haproxy
  33507 ? Ss 0:00 /usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg -D -p /var/run/haproxy.pid

Using version 1.5.14-1ubuntu0.15.10.1~cloud0:
root@juju-machine-2-lxc-0:~# apt-cache policy haproxy
haproxy:
  Installed: 1.5.14-1ubuntu0.15.10.1~cloud0
  Candidate: 1.5.14-1ubuntu0.15.10.1~cloud0
  Version table:
 *** 1.5.14-1ubuntu0.15.10.1~cloud0 0
        500 http://ubuntu-cloud.archive.canonical.com/ubuntu/ trusty-proposed/liberty/main amd64 Packages
        100 /var/lib/dpkg/status
     1.5.14-1~cloud2 0
        500 http://ubuntu-cloud.archive.canonical.com/ubuntu/ trusty-updates/liberty/main amd64 Packages
     1.4.24-2ubuntu0.2 0
        500 http://archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
     1.4.24-2 0
        500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages