upstart playframework launch script

play_upstart_starter.sh

# upstart play framework script
# thanks to: 
# http://geeknme.wordpress.com/2009/10/15/getting-started-with-upstart-in-ubuntu/
# this script will start/stop play framework
# place in /etc/init

description "start and stop the play framework"
version "1.0"
author "Brian Ross"

env PLAY_ID=prod
env PLAY_BINARY=/usr/local/bin/play
env PLAY_HOME=/path/to/application
env PLAY_PORT=80

start on runlevel [2345]

# tell upstart we're creating a daemon
# upstart manages PID creation for you.
expect fork

pre-start script
chdir $PLAY_HOME
exec $PLAY_BINARY deps
emit play_dependencies
end script

script
# START PLAY
chdir $PLAY_PORTAL_HOME
exec /usr/local/bin/play start --%$PLAY_ID -Xmx512m
# create a custom event in case we want to chain later
emit play_${PLAY_ID}_running
end script