apache2 charm uses service reload which fails if apache2 is stopped

[Brian Murray]

I was setting some apache2 servers in canonistack and regularly have seen the apache2 service not started on it. Looking at my juju unit log I found the following:

2016-03-15 21:49:05 INFO balancer-relation-changed ERROR: Conf syslog does not exist!
2016-03-15 21:49:05 INFO balancer-relation-changed ERROR: Conf other-vhosts-access-log does not exist!
2016-03-15 21:49:05 INFO balancer-relation-changed Syntax OK
2016-03-15 21:49:05 INFO balancer-relation-changed * Reloading web server apache2
2016-03-15 21:49:05 INFO balancer-relation-changed *
2016-03-15 21:49:05 INFO balancer-relation-changed * Apache2 is not running

Using sudo service apache2 start just worked, so everything is okay. I think it's actually a bug in the charm as service apache2 reload doesn't work if apache2 is stopped e.g.:

ubuntu@juju-mojo-howto-machine-2:~$ sudo service apache2 stop
 * Stopping web server apache2
 *
ubuntu@juju-mojo-howto-machine-2:~$ sudo service apache2 reload
 * Reloading web server apache2
 *
 * Apache2 is not running