Hi,
I'm looking at writing some template/classes that run services under
runit, rather then with SysV rc scripts (ie. in /etc/init.d).
It seems pretty straight-forward, but I'm running into an issue trying
to ensure that the service is up and started from the runit service but
not from the rc service.
Let me use an example...
The CentOS apache package is named "httpd" and normally installs a
script named "httpd" to /etc/init.d that is used to manage the service.
This script is symlinked into various /etc/rcn.d/ directories by the
chkconfig mechanism.
runit uses run scripts in /etc/sv/{service name}/ to manage the services.
So, I want to ensure that the rc service is stopped, and configured not
to start on boot, and that the runit service is started & configured to
start on boot.
First problem: it's not possible to have two services with the same
name. ie. given the following service to manage the rc service:
service { "httpd":
enable => "false",
ensure => "stopped",
hasrestart => "true",
hasstatus => "true",
provider => "redhat",
require => Package[httpd],
}
it is not possible to have a service to manage the runit service with
the same name, so I have to use something like this:
service { "apache":
enable => "true",
ensure => "running",
hasrestart => "true",
hasstatus => "true",
provider => "runit",
require => Package["runit", "httpd"],
}
Not ideal, but not a major issue. Ideally, I'd like to be able to
specify the name of the daemon separately from the name of the service
so they can both be httpd.
This all works fine except for one thing: the rc service status command
detects the httpd processes running from the runit apache service and
stops them. The runit process restarts the apache service, but I really
don't want to kill my httpd processes every time puppet runs.
It does this because the rc service "status" command uses a status
function (in /etc/init.d/functions) which in turn uses the pidof
command, which is a bit too damn clever at working out what command is
running.
Even if I symlink /usr/sbin/httpd -> apache and run /usr/sbin/apache,
"pidof /usr/sbin/httpd" finds the apache processes. The only thing I can
find that fixes it is to make a copy of httpd, e.g. "cp /usr/sbin/httpd
/usr/sbin/apache". I'm not sure I want to do that though.
Can anyone think of any other way to solve this?
Thanks,
R.
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