Test implementation of /etc/init.d/tailscaled

tailscaled

#!/bin/bash
#
# tailscaled	Start up the Tailscale server daemon
#
# description: A mesh VPN that makes it easy to connect your devices, wherever they are.
#
# processname: tailscaled

### BEGIN INIT INFO
# Provides: tailscaled
# Required-Start: $local_fs $network $syslog
# Required-Stop: $local_fs $syslog
# Should-Start: $syslog
# Should-Stop: $network $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Start up the Tailscale server daemon
# Description:       A mesh VPN that makes it easy to connect your devices, wherever they are. 
### END INIT INFO

# source function library
. /etc/rc.d/init.d/functions

RETVAL=0
prog="tailscaled"
lockfile=/var/lock/subsys/$prog

WORKDIR=/var/lib/tailscale
RUNDIR=/var/run/tailscale
STATE=$WORKDIR/tailscaled.state
SOCKET=$RUNDIR/tailscaled.sock
TAILSCALED=/usr/local/bin/tailscaled
CONFIG=/etc/default/tailscaled

runlevel=$(set -- $(runlevel); eval "echo \$$#" )

start()
{
	[ ! -x $TAILSCALED ] && exit 5
	echo -n $"Starting $prog: "
	[ ! -x $WORKDIR ] && mkdir $WORKDIR
	[ ! -x $RUNDIR ] && mkdir $RUNDIR
	if [ -e $CONFIG ]; then
		. $CONFIG
		daemon "$TAILSCALED --state $STATE --socket=$SOCKET --port=$PORT $FLAGS &" 2>/dev/null 1>&2 && \
			success || failure $"$prog start"
	else
		daemon "$TAILSCALED --state $STATE --socket=$SOCKET &" 2>/dev/null 1>&2 && \
			success || failure $"$prog start"
	fi
	RETVAL=$?
	[ $RETVAL -eq 0 ] && touch $lockfile
	echo
	return $RETVAL
}

stop()
{
	echo -n $"Stopping $prog: "
	killproc $TAILSCALED 2>/dev/null 1>&2 && \
		$TAILSCALED --cleanup 2>/dev/null 1>&2 && \
		success || failure $"$prog stop"
	RETVAL=$?
	# if we are in halt or reboot runlevel kill all running sessions
	# so the TCP connections are closed cleanly
	if [ "x$runlevel" = x0 -o "x$runlevel" = x6 ] ; then
	    trap '' TERM
	    killall $prog 2>/dev/null
	    trap TERM
	fi
	[ $RETVAL -eq 0 ] && rm -f $lockfile
	echo
}

restart() {
	stop
	start
}

rh_status() {
	status $prog
}

rh_status_q() {
	rh_status >/dev/null 2>&1
}

case "$1" in
	start)
		rh_status_q && exit 0
		start
		;;
	stop)
		if ! rh_status_q; then
			rm -f $lockfile
			exit 0
		fi
		stop
		;;
	restart)
		restart
		;;
	status)
		rh_status
		RETVAL=$?
		if [ $RETVAL -eq 3 -a -f $lockfile ] ; then
			RETVAL=2
		fi
		;;
	*)
		echo $"Usage: $0 {start|stop|restart|status}"
		RETVAL=2
esac
exit $RETVAL