papertrail webhooks

Enables Telegraf to act as a Papertrail Webhook.

Events

Events from Papertrail come in two forms:

The event-based callback:
- A point is created per event, with the timestamp as received_at
- Each point has a field counter (count), which is set to 1 (signifying the event occurred)
- Each event "hostname" object is converted to a host tag
- The "saved_search" name in the payload is added as an event tag
The count-based callback
- A point is created per timeseries object per count, with the timestamp as the "timeseries" key (the unix epoch of the event)
- Each point has a field counter (count), which is set to the value of each "timeseries" object
- Each count "source_name" object is converted to a host tag
- The "saved_search" name in the payload is added as an event tag

The current functionality is very basic, however this allows you to track the number of events by host and saved search.

When an event is received, any point will look similar to:

papertrail,host=myserver.example.com,event=saved_search_name count=3i 1453248892000000000