Fluentd

Install, configure, and manage Fluentd data collector.

Module Description

• Installs td-agent package
• Generates configuration file td-agent.conf
• Generates custom configuration files and saves them to config.d/
• Manages td-agent service
• Installs Fluentd gem plugins

Support Notice

As of the latest update, we are dropping support for Fluentd/TD Agent 3. Please ensure you are using Fluentd/TD Agent 4 or later.

Usage Examples

Basic

Install and start the service.

class { 'fluentd': }

Routing Events To Elasticsearch

Receive logs from other Fluentd instances and via UNIX domain socket. Forward the logs to Elasticsearch.

include fluentd

fluentd::plugin { 'fluent-plugin-elasticsearch': }

fluentd::config { '500_elasticsearch.conf':
  config => {
    'source' => [
      {
        'type' => 'forward',
      },
      {
        'type' => 'unix',
        'path' => '/tmp/td-agent/td-agent.sock',
      },
    ],
    'match'  => {
      'tag_pattern'     => '**',
      'type'            => 'elasticsearch',
      'index_name'      => 'foo',
      'type_name'       => 'bar',
      'logstash_format' => true,
    }
  }
}

Forwarding Events To Fluentd Aggregator

Read logs from UNIX domain socket, then forward them to Fluentd aggregators.

include fluentd

fluentd::config { '600_forwarding.conf':
  config => {
    'source' => {
      'type' => unix,
      'path' => '/tmp/td-agent/td-agent.sock',
    },
    'match'  => {
      'tag_pattern' => '**',
      'type'        => forward,
      'server'      => [
        { 'host' => 'example1.com', 'port' => 24224 },
        { 'host' => 'example2.com', 'port' => 24224 },
      ]
    }
  }
}

Hiera Support

Defining Fluentd resources in Hiera.

fluentd::plugins:
  'fluent-plugin-http':
    plugin_ensure: 0.1.0
  'fluent-plugin-elasticsearch':
    plugin_ensure: present
fluentd::configs:
  '100_fwd.conf':
    config:
      source:
        type: forward
  '200_stdout.conf':
    config:
      match:
        tag_pattern: test
        type: stdout

Config File Naming

All configs employ a numbering system in the resource's title that is used for ordering. When titling your config, make sure you prefix the filename with a number, for example, 999_catch_all.conf, 500_elasticsearch.conf (999 has smaller priority than 500)

Reference

Classes

Public Classes

• fluentd: Main class, includes all other classes.

Private Classes

• fluentd::install: Handles the packages.
• fluentd::service: Handles the service.

Parameters

The following parameters are available in the fluentd class:

repo_install

Default value: true

repo_name

Default value: 'treasuredata'

repo_desc

Default value: 'TreasureData'

repo_url

Default value: 'https://packages.treasuredata.com/2/redhat/$releasever/$basearch'

repo_enabled

Default value: true

repo_gpgcheck

Default value: true

repo_gpgkey

Default value: 'https://packages.treasuredata.com/GPG-KEY-td-agent'

repo_gpgkeyid

Default value: 'C901622B5EC4AF820C38AB861093DB45A12E206F'

package_name

Default value: 'td-agent'

package_ensure

Default value: present

service_name

Default value: 'td-agent'

service_ensure

Default value: running

service_enable

Default value: true

service_manage

Default value: true

service_provider

Default value:

• when $facts['osfamily'] == 'redhat': redhat
• otherwise: undef

config_file

Default value: '/etc/td-agent/td-agent.conf'

config_path

Default value: '/etc/td-agent/config.d'

config_owner

Default value: 'td-agent'

config_group

Default value: 'td-agent'

configs

Default value: {}

plugins

Default value: {}

purge_config_dir

Exclusively handle config files into fluentd::conf_dir. If true config files not created by puppet will be removed, default to false.

Public Defines

• fluentd::config: Generates custom configuration files.
• fluentd::plugin: Installs plugins.

The following parameters are available in the fluentd::plugin defined type:

title

Plugin name

plugin_ensure

Default value: present

plugin_source

Default value: 'https://rubygems.org'

plugin_provider

Default value: tdagent

plugin_install_options

Default value: [] see https://docs.puppetlabs.com/puppet/latest/reference/type.html#package-provider-gem, e.g.

plugin_install_options => [{'--http-proxy' => $http_proxy}]

The following parameters are available in the fluentd::config defined type:

title

Config filename

config

Config Hash, please see usage examples.

Limitations

Tested on CentOS 6, CentOS 7, Ubuntu 14.04, Debian 7.8

Development

Bug reports and pull requests are welcome!

Running Tests

$ bundle install
$ bin/rake lint
$ bin/rake metadata_lint
$ bin/rake spec
$ bin/rspec spec/lib
$ bin/rake beaker BEAKER_set=centos-6-x64
$ bin/rake beaker BEAKER_set=centos-7-x64
$ bin/rake beaker BEAKER_set=debian-7-amd64
$ bin/rake beaker BEAKER_set=ubuntu-server-1404-x64