rc.d scripts to control multiple instances of the same daemon?

[Ian Lepore]

On Tue, 2013-06-25 at 15:44 -0400, Garrett Wollman wrote:
> I'm in the process of (re)writing an rc.d script for kadmind
> (security/krb5).  Unlike the main Kerberos daemon, kadmind needs to
> have a separate instance for each realm on the server -- it can't
> support multiple realms in a single process.  What I need to be able
> to do:
> 
> 1) Have different flags and pidfiles for each instance.
> 2) Be able to start, stop, restart, and status each individual
> instance by giving its name on the command line.
> 3) Have all instances start/stop automatically when a specific
> instance isn't specified.
> 
> I've looked around for examples of good practice to emulate, and
> haven't found much.  The closest to what I want looks to be
> vboxheadless, but I'm uncomfortable with the amount of mechanism from
> rc.subr that it needs to reimplement.  Are there any better examples?

The one like that I use the most is "service netif restart fpx0" but I'm
not sure the complex network stuff will be the cleanest example of
anything except how to do complex network stuff. :)

-- Ian