This is a sample rc script for setting FreeBSD up to boot and fire a Plack application with plackup. Substitute "plack_app" with your own details if you want, and stick this file in /usr/local/etc/rc.d/ after configuring /etc/rc.conf. Other dependant app

gistfile1.sh

#!/bin/sh
#

# PROVIDE: plack_app
# REQUIRE: LOGIN
# BEFORE:  cron

#
# Add the following lines to /etc/rc.conf to enable the webapp:
# plack_app_enable (bool):      Set to "NO" by default.
#                               Set it to "YES" to enable 
#
# plack_app_app (path):         Location of the Plack application
#				Set to "/usr/local/www/plack_app/app.psgi" by default.
#
# plack_app_server (string):	PSGI Server to use. Defaults to HTTP::Server::PSGI.
#
# plack_app_port (int):		TCP Port to start the server on. Default to 5000.
#
# plack_app_env (string):	"production" by deafult, can also accept "development"
#

. /etc/rc.subr

name="plack_app"
rcvar=`set_rcvar`

[ -z "$plack_app_enable"  ] && plack_app_enable="NO"
[ -z "$plack_app_app"     ] && plack_app_app="/usr/local/www/plack_app/app.psgi"
[ -z "$plack_app_server"  ] && plack_app_server="HTTP::Server::PSGI"
[ -z "$plack_app_port"    ] && plack_app_port="5000"
[ -z "$plack_app_env"     ] && plack_app_env="production"

command="/usr/local/bin/plackup"
# I don't use --daemonize because it's server dependant
command_args=" --server $plack_app_server --port $plack_app_port --env $plack_app_env $plack_app_app &"

load_rc_config $name
run_rc_command "$1"