Dummy

The dummy input plugin, generates dummy events. It is useful for testing, debugging, benchmarking and getting started with Fluent Bit.

Configuration Parameters

The plugin supports the following configuration parameters:

Key	Description
Dummy	Dummy JSON record. Default: {"message":"dummy"}
Metadata	Dummy JSON metadata. Default: {}
Start_time_sec	Dummy base timestamp in seconds. Default: 0
Start_time_nsec	Dummy base timestamp in nanoseconds. Default: 0
Rate	Rate at which messages are generated expressed in how many times per second. Default: 1
Samples	If set, the events number will be limited. e.g. If Samples=3, the plugin only generates three events and stops.
Copies	Number of messages to generate each time they are generated. Defaults to 1.

Getting Started

You can run the plugin from the command line or through the configuration file:

Command Line

$ fluent-bit -i dummy -o stdout
Fluent Bit v2.x.x
* Copyright (C) 2015-2022 The Fluent Bit Authors
* Fluent Bit is a CNCF sub-project under the umbrella of Fluentd
* https://fluentbit.io

[0] dummy.0: [[1686451466.659962491, {}], {"message"=>"dummy"}]
[0] dummy.0: [[1686451467.659679509, {}], {"message"=>"dummy"}]

Configuration File

In your main configuration file append the following Input & Output sections:

fluent-bit.conf

[INPUT]
    Name   dummy
    Dummy {"message": "custom dummy"}

[OUTPUT]
    Name   stdout
    Match  *

fluent-bit.yaml

pipeline:
  inputs:
    - name: dummy
      dummy: '{"message": "custom dummy"}'
  outputs:
    - name: stdout
      match: '*'