logstash.conf

input { 
	stdin { type => "stdin-type"}
	generator { type => "generator-type" message => "generated event" }
}
output {
	librato {
		type => "generator-type"
		account_id => "foo@foo.com"
		api_token => "1231231231231231231231"
		gauge => ["value", "%{sequence}","source","%{@source_host}", "name", "bar_bytes"]
		counter => ["value", "%{sequence}","source","%{@source_host}", "name", "foos_received"]
	}
	librato {
		type => "stdin-type"
		account_id => "foo@foo.com"
		api_token => "1231231231231231231231"
		annotation => ["title","Logstash - %{@source_host}","name","logstash_stream"]
	}
}