Add init.d script for Debian. Requires dpkg >= 1.16.5.

This init.d script has configurable parameters. The way I configured
it requires 3 things:

1. A system user called nodejs which has its own group and homedir.
2. A system user called redis-commander which belongs to the nodejs
   group and uses the nodejs homedir.
3. The nodejs homedir MUST have g+w permission so redis-commander
   have permision to write as well.

Below is a step-by-step to get it up and running:

	# useradd --system -m -s /bin/false nodejs
	# useradd --system -d /home/nodejs -G nodejs -s /bin/false \
	  redis-commander
	# chmod g+w /home/nodejs/
	# cp dist/debian/init.d/redis-commander /etc/init.d/
	# chmod +x /etc/init.d/redis-commander
	# update-rc.d redis-commander defaults
	# service redis-commander start

dist/debian/init.d/redis-commander

@@ -0,0 +1,103 @@
+#!/bin/sh
+#
+# Written by Jardel Weyrich <jweyrich at gmail dot com>
+#
+### BEGIN INIT INFO
+# Provides: redis-commander
+# Required-Start: $local_fs $remote_fs $network $syslog
+# Required-Stop: $local_fs $remote_fs $network $syslog
+# Default-Start: 2 3 4 5
+# Default-Stop: 0 1 6
+# Short-Description: start Redis Commander (redis-commander)
+### END INIT INFO
+
+# Defaults
+RUN_MODE="daemons"
+
+# Reads config file (will override defaults above)
+#[ -r /etc/default/redis-commander ] && . /etc/default/redis-commander
+
+NAME="redis-commander"
+USER="redis-commander"
+GROUP="nodejs"
+DESC="Redis Commander"
+DAEMON="/usr/local/bin/redis-commander"
+DAEMONOPTS=""
+PIDDIR="/var/run/$NAME"
+PIDFILE="$PIDDIR/$NAME.pid"
+LOGDIR="/var/log/$NAME"
+LOGFILE="$LOGDIR/$NAME.log"
+
+# clear conflicting settings from the environment
+unset TMPDIR
+
+# See if the daemons are there
+test -x $DAEMON || exit 0
+
+. /lib/lsb/init-functions
+
+case "$1" in
+ start)
+ log_daemon_msg "Starting $DESC"
+ # Make sure we have our PIDDIR and LOGDIR, even if they're on a tmpfs.
+ install -o root -g root -m 755 -d $PIDDIR
+ install -o root -g root -m 755 -d $LOGDIR
+
+ if [ "$RUN_MODE" != "inetd" ]; then
+ log_progress_msg "$NAME"
+ if ! start-stop-daemon --start --quiet --oknodo --chuid "$USER:$GROUP" --background --make-pidfile --pidfile $PIDFILE --no-close --startas $DAEMON -- $DAEMONOPTS >> $LOGFILE 2>&1; then
+ log_end_msg 1
+ exit 1
+ fi
+ # Change the log permissions.
+ chown -R $USER:adm /var/log/redis-commander
+ fi
+
+ log_end_msg 0
+ ;;
+ stop)
+ log_daemon_msg "Stopping $DESC"
+
+ if [ "$RUN_MODE" != "inetd" ]; then
+ log_progress_msg "$NAME"
+ start-stop-daemon --stop --quiet --oknodo --retry 10 --pidfile $PIDFILE
+
+ # Wait a little and remove stale PID file
+ sleep 1
+ if [ -f $PIDFILE ] && ! ps h `cat $PIDFILE` > /dev/null
+ then
+ # Stale PID file (process was succesfully stopped).
+ rm -f $PIDFILE
+ fi
+ fi
+
+ log_end_msg 0
+ ;;
+ reload)
+ if [ "$RUN_MODE" != "inetd" ]; then
+ log_daemon_msg "Reloading $DESC"
+
+ start-stop-daemon --stop --quiet --signal HUP --pidfile $PIDFILE
+
+ log_end_msg 0
+ fi
+ ;;
+ restart|force-reload)
+ $0 stop
+ sleep 1
+ $0 start
+ ;;
+ status)
+ status="0"
+ if [ "$RUN_MODE" != "inetd" ]; then
+ status_of_proc -p $PIDFILE $DAEMON $NAME || status=$?
+ fi
+ exit $status
+ ;;
+ *)
+ echo "Usage: /etc/init.d/$NAME {start|stop|reload|restart|force-reload|status}"
+ exit 1
+ ;;
+esac
+
+exit 0