Create a status file when public ip found (#1314)

I want to share the online status with other services (for now with my menu script, but Logger could use ist too).

Author: juehv

bin/oref0-online.sh

@@ -137,9 +137,11 @@ function check_ip {
     PUBLIC_IP=$(curl --compressed -4 -s -m 15 checkip.amazonaws.com | awk -F '[, ]' '{print $NF}' | egrep "^[12]*[0-9]*[0-9]\.[12]*[0-9]*[0-9]\.[12]*[0-9]*[0-9]\.[12]*[0-9]*[0-9]$")
     if [[ -z $PUBLIC_IP ]]; then
         echo not found
+        rm /tmp/hasPublicIp 2> /dev/null
         return 1
     else
         echo $PUBLIC_IP
+        touch /tmp/hasPublicIp
     fi
 }