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| #!/bin/bash
BIN=/usr/bin/client_linux_amd64
USER=nobody
GROUP=nobody
PID_DIR=/var/run
PID_FILE=$PID_DIR/kcptun.pid
LOG_FILE=/var/log/kcptun
CONF_FILE=/etc/kcptun.json
RET_VAL=0
check_running() {
if [[ -r $PID_FILE ]]; then
read PID <$PID_FILE
if [[ -d "/proc/$PID" ]]; then
return 0
else
rm -f $PID_FILE
return 1
fi
else
return 2
fi
}
do_status() {
check_running
case $? in
0)
echo "kcptun running with PID $PID"
;;
1)
echo "kcptun not running, remove PID file $PID_FILE"
;;
2)
echo "Could not find PID file $PID_FILE, kcptun does not appear to be running"
;;
esac
return 0
}
do_start() {
if [[ ! -d $PID_DIR ]]; then
echo "creating PID dir"
mkdir $PID_DIR || echo "failed creating PID directory $PID_DIR"; exit 1
chown $USER:$GROUP $PID_DIR || echo "failed creating PID directory $PID_DIR"; exit 1
chmod 0770 $PID_DIR
fi
if check_running; then
echo "kcptun already running with PID $PID"
return 0
fi
echo "starting kcptun"
sudo -u $USER -H -- $BIN -c $CONF_FILE >$LOG_FILE 2>&1 &
PID=$!
echo $PID > $PID_FILE
sleep 0.3
if ! check_running; then
echo "start failed"
return 1
fi
echo "kcptun running with PID $PID"
return 0
}
do_stop() {
if check_running; then
echo "stopping kcptun with PID $PID"
kill $PID
rm -f $PID_FILE
else
echo "Could not find PID file $PID_FILE"
fi
}
do_restart() {
do_stop
do_start
}
case "$1" in
start|stop|restart|status)
do_$1
;;
*)
echo "Usage: kcptun {start|stop|restart|status}"
RET_VAL=1
;;
esac
exit $RET_VAL
|