glances notes

glances_init.d.txt

#!/bin/sh
### BEGIN INIT INFO
# Provides:          glances
# Required-Start:    $network $remote_fs $syslog
# Required-Stop:     $network $remote_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start glances at boot time
# Description:       Start glances at boot.
### END INIT INFO

# Author              pjobson@gmail.com
# Last Modified       06 May 2023
# Files               /etc/init.d/glances

# Required -- To be changed!
NAME=glances
USER=pjobson
PORT=61209
DAEMON="/usr/local/bin/glances"
DAEMON_ARGS="-w --config /home/$USER/.config/glances/glances.conf --port $PORT --bind 0.0.0.0"
PIDFile=/var/run/glances.pid

COMMON_OPTS="--quiet --chuid $USER --pidfile $PIDFile"
STOP_SIGNAL=INT

do_start(){
  echo "Starting $NAME"
  start-stop-daemon --start $COMMON_OPTS --make-pidfile --background --startas \
    /bin/bash -- -c "exec $DAEMON $DAEMON_ARGS 2>&1"
}

do_stop(){
  opt=${@:-}
  start-stop-daemon --stop $COMMON_OPTS --signal $STOP_SIGNAL \
    --oknodo $opt --remove-pidfile
}

do_status(){
    start-stop-daemon --status $COMMON_OPTS && exit_status=$? || exit_status=$?
    case "$exit_status" in
        0)
            echo "Program '$NAME' is running."
            ;;
        1)
            echo "Program '$NAME' is not running and the pid file exists."
            ;;
        3)
            echo "Program '$NAME' is not running."
            ;;
        4)
            echo "Unable to determine program '$NAME' status."
            ;;
    esac
}

case "$1" in
  status)
        do_status
        ;;
  start)
        echo -n "Starting daemon: "$NAME
        do_start
        echo "."
        ;;
  stop)
        echo -n "Stopping daemon: "$NAME
        do_stop
        echo "."
        ;;
  restart)
        echo -n "Restarting daemon: "$NAME
        do_stop --retry 30
        do_start
        echo "."
        ;;
  *)
        echo "Usage: "$1" {status|start|stop|restart}"
        exit 1
esac

exit 0