Merge pull request resque#719 from postmodern/init.d

Added an example Ubuntu init.d script for starting resque workers.

Author: steveklabnik

examples/ubuntu/resque

@@ -0,0 +1,96 @@
+#!/bin/sh -e
+### BEGIN INIT INFO
+# Provides:		resque
+# Required-Start:	$local_fs $remote_fs
+# Required-Stop:	$local_fs $remote_fs
+# Should-Start:		$local_fs
+# Should-Stop:		$local_fs
+# Default-Start:	2 3 4 5
+# Default-Stop:		0 1 6
+# Short-Description:	resque - a Redis-backed Ruby library for creating background jobs
+# Description:		resque - a Redis-backed Ruby library for creating background jobs, placing those jobs on multiple queues, and processing them later.
+### END INIT INFO
+
+set -e
+
+. /lib/lsb/init-functions
+
+NAME="www.example.com"
+ROOT="/srv/APP_NAME"
+USER="deploy"
+GROUP="deploy"
+ENVIRONMENT="production"
+QUEUES="*"
+COUNT=2
+
+BUNDLER="/usr/bin/bundle"
+RAKE="/usr/bin/rake"
+TASK="resque:work"
+PIDFILE="$ROOT/tmp/pids/resque_worker.%d.pid"
+
+start() {
+	local program
+	local options
+
+	if test -f $ROOT/Gemfile.lock; then
+		program="$BUNDLER"
+		options="exec rake $TASK"
+	else
+		program="$RAKE"
+		options="$TASK"
+	fi
+
+	options="$options RACK_ENV=$ENVIRONMENT QUEUES=$QUEUES"
+
+	for i in $(seq 1 $COUNT); do
+		pidfile=$(printf "$PIDFILE" $i)
+
+		if start-stop-daemon --start --background --quiet --pidfile $pidfile --chdir $ROOT --chuid $USER:$GROUP --exec $program -- $options PIDFILE=$pidfile
+		then
+			log_daemon_msg "Starting worker #$i for $NAME ..."
+		else
+			log_failure_msg "Failed to start worker #$i for $NAME!"
+		fi
+	done
+}
+
+stop() {
+	local pidfile
+
+	for i in $(seq 1 $COUNT); do
+		pidfile=$(printf "$PIDFILE" $i)
+
+		if start-stop-daemon --stop --quiet --oknodo --pidfile $pidfile
+		then
+			log_daemon_msg "Stopped Resque worker #$i for $NAME"
+			rm -f $pidfile
+		else
+			log_failure_msg "Failed to stop Resque worker #$i for $NAME!" >&2
+		fi
+	done
+}
+
+status() {
+	local pidfile
+
+	for i in $(seq 1 $COUNT); do
+		pidfile=$(printf "$PIDFILE" $i)
+
+		status_of_proc -p $pidfile "rake $TASK" "$NAME worker #$i"
+	done
+}
+
+case "$1" in
+	start)	start ;;
+	stop)	stop ;;
+	restart|force-reload)
+		stop
+		sleep 1
+		start
+		;;
+	status) status ;;
+	*)
+		echo "Usage: $0 {start|stop|restart|force-reload|status}" >&2
+		exit 1
+		;;
+esac