since 4.11.3, haproxy is always restarted when add/delete a lb rule.
When haproxy is started, the processes are
```
root@r-854-VM:~# ps aux |grep haproxy
root 22272 0.0 0.2 4036 668 ? Ss 07:52 0:00 /usr/sbin/haproxy-systemd-wrapper -f /etc/haproxy/haproxy.cfg -p /run/haproxy.pid
haproxy 22274 0.0 2.3 38444 5856 ? S 07:52 0:00 /usr/sbin/haproxy-master
haproxy 22275 0.0 0.3 38444 880 ? Ss 07:52 0:00 /usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg -p /run/haproxy.pid -Ds
```
When haproxy is reload, the processes are
```
root@r-854-VM:~# ps aux |grep haproxy
root 22272 0.0 0.2 4168 632 ? Ss 07:52 0:00 /usr/sbin/haproxy-systemd-wrapper -f /etc/haproxy/haproxy.cfg -p /run/haproxy.pid
haproxy 22283 0.0 2.3 38444 5884 ? S 07:53 0:00 /usr/sbin/haproxy-master
haproxy 22286 0.0 0.3 38444 880 ? Ss 07:53 0:00 /usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg -p /run/haproxy.pid -Ds -sf 22275
```
We need to change the pid file from /var/run/haproxy.pid to /run/haproxy.pid, so the haproxy will be reloaded instead of restarted.
- Refactors and simplifies systemvm codebase file structures keeping
the same resultant systemvm.iso packaging
- Password server systemd script and new postinit script that runs
before sshd starts
- Fixes to keepalived and conntrackd config to make rVRs work again
- New /etc/issue featuring ascii based cloudmonkey logo/message and
systemvmtemplate version
- SystemVM python codebase linted and tested. Added pylint/pep to
Travis.
- iptables re-application fixes for non-VR systemvms.
- SystemVM template build fixes.
- Default secondary storage vm service offering boosted to have 2vCPUs
and RAM equal to console proxy.
- Fixes to several marvin based smoke tests, especially rVR related
tests. rVR tests to consider 3*advert_int+skew timeout before status
is checked.
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>