A simple init.d script for the psdash tool

README.md

Installation (on a Debian machine):

1. Install psdash
2. Save the contents of the init.d script in /etc/init.d/psdash and edit it to fit your OS and paths
3. Make it exectutable: chmod a+rx /etc/init.d/psdash
4. Run update-rc.d psdash defaults
5. Start the daemon with /etc/init.d/psdash start

Optionally, setup a proxy pass to psdash's port (TCP 5000) and add some form of authentication there.

psdash-init.d.sh

#!/bin/bash
#
# This script is for a Debian-based operating system.
# You might need to adjust it for your OS and needs.

# Source function library.
test -f /etc/init.d/functions   && . /etc/init.d/functions
test -f /lib/lsb/init-functions && . /lib/lsb/init-functions

set -e

NAME="psdash"
DAEMON="/usr/local/bin/psdash"
LOGS_PATH="/var/log/**/*.log"
BIND_HOST="127.0.0.1"
PATH="/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/bin"
LOGFILE="/var/log/$NAME.log"
PIDFILE="/var/run/$NAME.pid"

start() {
    echo -n "Starting: "

    start-stop-daemon --start -m --oknodo --pidfile $PIDFILE --exec $DAEMON -- --log "$LOGS_PATH" --bind "$BIND_HOST" >> $LOGFILE 2>&1 &

    echo "$NAME."
    return
}

stop() {
    echo -n "Shutting down: "

    start-stop-daemon --stop --pidfile $PIDFILE

    echo "$NAME."
    return
}

status() {
    PID=`cat $PIDFILE 2>/dev/null` || true

    if [ ! -f $PIDFILE ] || [ -z "${PID}" ]
    then
        echo "${NAME} is not running"
        return 3
    fi

    if ps "${PID}" >/dev/null 2>&1
    then
        echo "${NAME} is running"
        return 0
    else
        echo "${NAME} is NOT running"
        return 1
    fi
}

case "$1" in
    start)
        status > /dev/null && status && exit 0 || true

        start
        sleep 1
        status
        ;;
    stop)
        stop
        ;;
    status)
        status
        ;;
    restart)
        stop || true
        sleep 1
        start
        ;;

    *)
        echo "Usage: {start|stop|status|restart}"
        exit 1
        ;;
esac
exit $?