On Tue, Feb 25, 2014 at 4:16 PM, Simo Sorce <simo@redhat.com> wrote:
It's unclear to me how you'd share the same port between all these vhosts in a systemd world. Would the unit run a script that enables/disables the various configs and then just reload the main apache process configuration ?

vhosts are a bad example I guess since stock httpd supports them well.  But with httpd you still may want one instance that's acting as a static frontend + proxy, and then perhaps you have "app servers" behind it which link in perl or whatever into the server.

Databases may be a better example - while I imagine a lot of people dedicate machines to a single database, there are valid reasons to have separate multi-instantiated instances too.