tailscaled sysvinit script for devuan

sysvinit-etc-init.d-tailscaled

#!/bin/sh
### BEGIN INIT INFO
# Provides: tailscale
# Required-Start: $local_fs $all $network
# Required-Stop:
# Default-Start: 2 3 4 5
# Default-Stop:
# Short-Description: Tailscale daemon
# Description: Runs the tailscale daemon.
### END INIT INFO

# Source function library.
. /lib/lsb/init-functions
PIDFILE=/var/run/tailscale.pid
LOGFILE=/var/log/tailscale.log
TAILSCALED=/usr/sbin/tailscaled

fail_unless_root() {
	if [ "$(id -u)" != '0' ]; then
		log_failure_msg "must be run as root"
		exit 1
	fi
}

case "$1" in
        start)
                fail_unless_root
                $TAILSCALED --cleanup
                start-stop-daemon --start --background --no-close \
                        --exec $TAILSCALED \
                        --pidfile "$PIDFILE" \
                        --make-pidfile \
                        -- \
                        --state=/var/lib/tailscale/tailscaled.state \
                        --socket=/run/tailscale/tailscaled.sock >> $LOGFILE 2>&1
                status=$?
                log_end_msg $status
        ;;

        stop)
                fail_unless_root
                start-stop-daemon --stop --pidfile "$PIDFILE" \
                        --remove-pidfile --retry 10
                status=$?
                log_end_msg $status
        ;;

        status)
                status_of_proc -p "$PIDFILE" "$TAILSCALED" "tailscaled"
        ;;

        *)
                echo "Usage: $0 {start|stop|status}"
                exit 1 ;;
esac