fluent-plugin-array-splitter

Overview

This Fluentd filter plugin allows you to split array values within json formatted log records.

$ gem install fluent-plugin-array-splitter

Add following line to your Gemfile:

gem "fluent-plugin-array-splitter"

And then execute:

$ bundle

parameter	type	description	default
array_key	string (required)	The target field name to split array values
key_name	string (optional)	The field name to rename the key of a single array element	nil

<filter pattern>
  @type array_splitter
  array_key message
  key_name new_key
</filter>

With the above configuration, an input like:

{"message": ["value1", "value2"]}

will result in two records:

{"new_key": "value1"}
{"new_key": "value2"}

If you have an input like:

{"message": [{"key1": "value1"}, {"key2": "value2"}]}

will result as follows:

{"key1": "value1"}
{"key2": "value2"}