Exec

The exec input plugin, allows to execute external program and collects event logs.

Configuration Parameters

The plugin supports the following configuration parameters:

Key Description
Command The command to execute.
Parser Specify the name of a parser to interpret the entry as a structured message.
Interval_Sec Polling interval (seconds).
Interval_NSec Polling interval (nanosecond).

Getting Started

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

Command Line

The following example will read events from the output of ls.

  1. $ fluent-bit -i exec -p 'command=ls /var/log' -o stdout
  2. Fluent-Bit v0.13.0
  3. Copyright (C) Treasure Data
  5. [2018/03/21 17:46:49] [ info] [engine] started
  6. [0] exec.0: [1521622010.013470159, {"exec"=>"ConsoleKit"}]
  7. [1] exec.0: [1521622010.013490313, {"exec"=>"Xorg.0.log"}]
  8. [2] exec.0: [1521622010.013492079, {"exec"=>"Xorg.0.log.old"}]
  9. [3] exec.0: [1521622010.013493443, {"exec"=>"anaconda.ifcfg.log"}]
  10. [4] exec.0: [1521622010.013494707, {"exec"=>"anaconda.log"}]
  11. [5] exec.0: [1521622010.013496016, {"exec"=>"anaconda.program.log"}]
  12. [6] exec.0: [1521622010.013497225, {"exec"=>"anaconda.storage.log"}]

Configuration File

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

  1. [INPUT]
  2.     Name          exec
  3.     Tag           exec_ls
  4.     Command       ls /var/log
  5.     Interval_Sec  1
  6.     Interval_NSec 0
  8. [OUTPUT]
  9.     Name   stdout
  10.     Match  *