Init script for unicorn using a rvm wrapper

encuestas_init.sh

#!/bin/bash
### BEGIN INIT INFO
# Provides:          Encuestas
# Required-Start:    $all
# Required-Stop:     $network $local_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start the Encuestas unicorns at boot
# Description:       Enable Encuestas at boot time.
### END INIT INFO
#
# Use this as a basis for your own Unicorn init script.
# Change Encuestas to match your app.
# Make sure that all paths are correct.

set -u
set -e

# Change these to match your app:
APP_NAME=Encuestas
APP_ROOT="/home/encuestas/deploy/current"
PID="/home/encuestas/deploy/current/tmp/pids/unicorn.pid"
ENV=production


UNICORN_OPTS="-D -E $ENV -c $APP_ROOT/config/unicorn.rb"

CMD="bundle exec encuestas_unicorn_rails $UNICORN_OPTS"

old_pid="$PID.oldbin"

cd $APP_ROOT || exit 1
sig () {
  test -s "$PID" && kill -$1 `cat $PID`
}

oldsig () {
  test -s $old_pid && kill -$1 `cat $old_pid`
}

case ${1-help} in
  start)
      sig 0 && echo >&2 "Already running" && exit 0
      su -m encuestas -c "$CMD"
      ;;
  stop)
     sig QUIT && exit 0
     echo >&2 "Not running"
     ;;
  force-stop)
     sig TERM && exit 0
     echo >&2 "Not running"
     ;;
  restart|reload)
     sig HUP && echo reloaded OK && exit 0
     echo >&2 "Couldn't reload, starting '$CMD' instead"
     su -m  encuestas -c "$CMD"
     ;;
  upgrade)
     sig USR2 && exit 0
     echo >&2 "Couldn't upgrade, starting '$CMD' instead"
     su -m encuestas -c "$CMD"
     ;;
  rotate)
     sig USR1 && echo rotated logs OK && exit 0
     echo >&2 "Couldn't rotate logs" && exit 1
     ;;
  *)
     echo >&2 "Usage: $0 <start|stop|restart|upgrade|rotate|force-stop>"
     exit 1
    ;;
esac