Missing configuration options

[jokimaki]

There seems to be quite a few configuration properties missing from graylog.server.conf.j2 compared to https://github.com/Graylog2/graylog2-server/blob/master/misc/graylog.conf.

In particular, I was looking for a way to set Elastisearch timeout parameters (http://docs.graylog.org/en/2.4/pages/configuration/server.conf.html#elasticsearch).

[Madnessy]

Also missing the disable version check option in the playbook (but also in the config file itself)

[malcyon]

You should be able to add in additional parameters like this:

    graylog_additional_config:
      test: value