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Templating
==========
Finit comes with rudimentary support for templating, similar to that of
systemd. Best illustrated with an example:
$ initctl show avahi-autoipd@
service :%i avahi-autoipd --syslog %i -- ZeroConf for %i
To enable ZeroConf for, e.g., `eth0`, use
$ initctl enable avahi-autoipd@eth0.conf
The enabled symlink will be set up to `avahi-autoipd@.conf` and every
instance of `%i` will in the instantiated directive be replaced with
`eth0`. Inspect the resulting instantiated template with `initctl show
avahi-autoipd:eth0` and check the status of a running instance with:
```
$ initctl status avahi-autoipd:eth0
Status : running
Identity : avahi-autoipd:eth0
Description : ZeroConf for eth0
Origin : /etc/finit.d/enabled/avahi-autoipd@eth0.conf
Environment : -/etc/default/avahi-autoipd-eth0
Command : avahi-autoipd $AVAHI_AUTOIPD_ARGS eth0
PID file : /run/avahi-autoipd.eth0.pid
PID : 4190
User : root
Group : root
Uptime : 24 sec
Restarts : 0 (0/10)
Runlevels : [---2345-789]
Memory : 20.0k
CGroup : /system/avahi-autoipd@eth0 cpu 0 [100, max] mem [0, max]
└─ 4190 avahi-autoipd: [eth0] bound 169.254.1.9
Jul 8 11:51:42 infix-c0-ff-ee finit[1]: Starting avahi-autoipd:eth0[4190]
```
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