Create minecraft-users-ram_

plugins/minecraft/minecraft-users-ram_

@@ -0,0 +1,29 @@
+#!/bin/bash
+# I'm not the author, just wanted to add this plugin to github
+#  Author & instructions: http://wiki.natenom.name/minecraft/munin-plugin
+
+LC_LANG=C
+MC_PORT=${0##*_}
+ 
+if [ "$1" = "config" ]
+then
+    printf 'graph_title Minecraft-Server (Port %s)\n' ${MC_PORT}
+    printf 'graph_vlabel Anzahl\n'
+    printf 'users.label Benutzer\n'
+    printf 'ramusage.label Verwendeter RAM in GiB\n'
+    exit 0
+fi
+
+PLAYERCOUNT=$(netstat -tn | grep -i ${MC_PORT} | grep ESTABLISHED | wc -l)
+MC_PID=$(netstat -tlpn | grep ${MC_PORT}  | sed -n -e '1p' | awk '{ print $7 }' | cut -d'/' -f1)
+if [ ! -z "${MC_PID}" ]
+then #is running
+    MEMORYRSS=$(ps -p ${MC_PID} -o rss | cut -d'
+' -f2)
+    MEMGiB=$(echo "scale=2;${MEMORYRSS}/1024/1024" | bc -l)
+else
+    MEMGiB=0
+fi
+
+printf "users.value %i\n" "${PLAYERCOUNT}"
+printf "ramusage.value %3.2f\n" "${MEMGiB}"