I was directed to the Graylog2 HipChat Plugin available HERE and followed the (rather simple) steps regarding its installation.
Unfortunately after restarting Graylog2-server nothing seems to be picked up regarding the plugin. Stream settings do not have the HipChat options as in the installation steps screenshot, and i cannot find anything in the log files about the plugin not loading/breaking.
I have amended the /etc/graylog2.conf so that the 'plugin_dir' is an absolute path to the plugin folder location. But yet it is as if Graylog2 just does not recognize that a .jar file is there.
This is my first attempt at installing a Graylog2 plugin. Is this the correct way of installing the hipchat plugin, but if not how do you install the HipChat plugin for GrayLog2?
I got the Slack and HipChat plugins to work via dropping the jars in the plugin top-level directory. Not the sub-level inputs, outputs, or transports directory and plugin directory is an absolute path: /opt/plugin. Hope it helps.
Amazon CloudTrail plugin is working on my production server as well, although there are still an issue with dev.