Play framework 2.2.x Upstart init script

Below is an Upstart Ubuntu init script for Play 2.2.x.

description "My Play Application"
 
env USER=
env GROUP=
env APP_HOME=
env APP_NAME=
env PORT=80
env BIND_ADDRESS=0.0.0.0
 
env EXTRA=""
 
start on (filesystem and net-device-up IFACE=lo)
stop on runlevel [!2345]
 
respawn
respawn limit 30 10
umask 022
expect daemon
 
pre-start script
    #If improper shutdown and the PID file is left on disk delete it so we can start again
    if [ -f $APP_HOME/RUNNING_PID ] && ! ps -p `cat $APP_HOME/RUNNING_PID` > /dev/null ; then
        rm $APP_HOME/RUNNING_PID ;
    fi
end script
 
exec start-stop-daemon \
  --pidfile ${APP_HOME}/RUNNING_PID \
  --chdir ${APP_HOME} \
  --chuid $USER:$GROUP \
  --exec ${APP_HOME}/bin/$APP_NAME \
  --background --start -- -Dhttp.port=$PORT -Dhttp.address=$BIND_ADDRESS $EXTRA

APP_HOME should match the folder of your play application
APP_NAME variable should match ‘:name’ variable in your build.sbt file
BIND_ADDRESS is the ip the app should listen on
EXTRA takes additional jvm arguments to pass into the app such as ‘-Dconfig.file=’
GROUP should match the group you want to run the app as
PORT is the port the app should listen on
USER should match the user you want to run the app as