Elasticsearch puppet host config

Yeah, the module operates under the notion of instances so Puppet manages individual services on a machine, not the generic elasticsearch service (this is so that multiple instances can be easily managed on very large machines if someone wants to run more than just one Elasticsearch service).

Note that in the case of Oracle Linux 7/CentOS 7, often times daemon startup stdout/stderr may not show up in systemctl status elasticsearch-searchpbe or in Elasticsearch log files. You can more easily find Elasticsearch startup stdout/stderr output in this case by searching through the journal (journalctl).