Revert "Disable elasticsearch nagios/ganglia monitoring on logstash cluster"

This reverts commit 08a70e977633b68c1552536d2a1b0d3b411d8478.

Change-Id: I6c84bd075d065029ac3df152a6088ea4bafe435a
Merge "Revert "Disable elasticsearch nagios/ganglia monitoring on logstash cluster"" into production