Chef Cookbook for td-agent (Treasure Agent or Fluentd)
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README.md

Build Status

DESCRIPTION

Chef cookbook for td-agent (Treasure Data Agent). The release log of td-agent is available here.

NOTE: td-agent is open-sourced as the Fluentd project. If you want to use a stable version of Fluentd, using this cookbook is recommended.

INSTALLATION

Installing with Berkshelf

This cookbook is released on Chef Supermarket. You can install the cookbook using Berkshelf.

$ echo 'cookbook "td-agent"' >> Berksfile
$ berks install

Installing with knife-github-cookbooks

The knife-github-cookbooks gem is a plugin for knife that supports installing cookbooks directly from a GitHub repository. To install with this plugin, please follow these steps:

$ gem install knife-github-cookbooks
$ cd chef-repo
$ knife cookbook github install treasure-data/chef-td-agent

NOTICE

This cookbook may be used on Amazon Linux but we cannot guarantee if td-agent will work properly because AWS doesn't guarantee binary compatibility with RHEL (they aim to be "as compatible as possible"). If users encounter any compatibility issues with td-agent on Amazon Linux, they should contact AWS.

REQUIREMENTS

This cookbook has these external dependencies.

  • apt cookbook
  • yum cookbook

ATTRIBUTES

api_key

API Key, and the Secret Key are required.

  • node[:td_agent][:api_key] (required)

plugins

A list of fluentd plugins to install. The fluent-plugin- prefix is automatically added. Additional variables can be passed.

  • node[:td_agent][:plugins]

Example

This installs the latest version of fluent-plugin-flowcounter and version 0.0.9 of fluent-plugin-rewrite.

node[:td_agent][:plugins] = [
  "flowcounter",
  { "rewrite" => { "version" => "0.0.9" } }
]

version

You can install the latest td-agent 2 using the version attribute and major version.

node[:td_agent][:version] = '2'

You can also specify the full version.

node[:td_agent][:version] = '2.0.4'

pinning_version and version

If pinning_version is true, then version's td-agent will be installed. The default version is the latest version.

  • node[:td_agent][:pinning_version]
  • node[:td_agent][:version]

In this case, you should set the full version in node[:td_agent][:version].

uid

UID of td-agent user. Automatically assigned by default.

gid

GID of td-agent group. Automatically assigned by default.

RESOURCES / PROVIDERS

td_agent_gem

Installs a gem or fluentd plugin using the embedded fluent-gem

Actions

Action Description
install Install the gem, optinally with a specific version. Default.
upgrade Upgrade to the latest gem
remove Remove the gem
purge Purge the gem

Attributes

Attribute Description
package_name Gem name. Defaults to name
version Gem version. Installs the latest if none specified
source Local .gem file
options Options passed to the gem command
gem_binary Override path to the gem command
response_file Not supported
plugin If true, no need to prefix the gem name w/ "fluent-plugin-". Defaults to false

Examples

This installs fluent-plugin-datacounter (v0.2.0)

td_agent_gem "datacounter" do
  version "0.2.0"
  plugin true
end

This installs the latest version of aws-sdk

td_agent_gem "aws-sdk" do
  plugin false
end

td_agent_source

Create file with source definition in /etc/td-agent/conf.d directory. It works only if node[:td_agent][:includes] is true

Notice: If you use some plugins in your sources, you should install it before you call lwrp.

Actions

Action Description
:create Create a file
:delete Delete a file

Attributes

Attribute Description
source_name File name. To its value will be added .conf. Defaults to name
type Type of source. This is name of input plugin.
tag Tag, what uses in fluentd routing.
parameters Parameters of source. Hash.

Example

This example creates the source with tail type and syslog tag which reads from /var/log/messages and parses it as syslog.

td_agent_source 'test_in_tail' do
  type 'tail'
  tag 'syslog'
  parameters(format: 'syslog',
         path: '/var/log/messages')
end

td_agent_match

Create file with match definition in /etc/td-agent/conf.d directory. It works only if node[:td_agent][:includes] is true

Notice: Notice: If you use some plugins in your matches, you should install it before you call lwrp.

Actions

Action Description
:create Create a file
:delete Delete a file

Attributes

Attribute Description
match_name File name. To its value will be added .conf. Defaults to name
type Type of match. This is name of output plugin.
tag Tag, what uses in fluentd routing.
parameters Parameters of match. Hash.

Example

This example creates the match with type copy and tag webserver.* which sends log data to local graylog2 server.

td_agent_match 'test_gelf_match' do
  type 'copy'
  tag 'webserver.*'
  parameters( store: [{ type: 'gelf',
                   host: '127.0.0.1',
                   port: 12201,
                   flush_interval: '5s'},
                   { type: 'stdout' }])
end

td_agent_filter

Create file with filter definition in /etc/td-agent/conf.d directory. It works only if node[:td_agent][:includes] is true

Notice: Notice: If you use some plugins for your filters, you should install them before you call lwrp.

Actions

Action Description
:create Create a filter
:delete Delete a filter

Attributes

Attribute Description
filter_name File name. To its value will be added .conf. Defaults to name
type Type of filter. This is name of output plugin.
tag Tag, what uses in fluentd routing.
parameters Parameters of filter. Hash.

Example

This example creates the filter with type record_transformer and tag webserver.* which adds the hostname field with the server's hostname as its value:

td_agent_filter 'filter_webserver' do
  type 'record_transformer'
  tag 'webserver.*'
  parameters(
    record: [ { host_param: %Q|"#{Socket.gethostname}"| } ]
  )
end

td_agent_plugin

Install plugin from url to /etc/td-agent/plugin dir.

Actions

Action Description
:create Install plugin
:delete Uninstall plugin

Attributes

Attribute Description
plugin_name File name. To its value will be added .rb. Defaults to name
url Url what contains plugin file. Value of this attribute may be the same as remote_file resource.

Example

Install plugin gelf.rb from url https://raw.githubusercontent.com/emsearcy/fluent-plugin-gelf/master/lib/fluent/plugin/out_gelf.rb

td_agent_plugin 'gelf' do
  url 'https://raw.githubusercontent.com/emsearcy/fluent-plugin-gelf/master/lib/fluent/plugin/out_gelf.rb'
end

includes

Optionally include /etc/td-agent/conf.d/*.conf files (i.e. symlinks, other recipes, etc.)

  • node[:td_agent][:includes] = false

default_config

Optionally prevent /etc/td-agent/td-agent.conf from including default config.

  • node[:td_agent][:default_config] = true

USAGE

This is an example role file.

name "base"
description "base server role."
run_list(
  "recipe[apt]",
  "recipe[yum]",
  "recipe[td-agent]",
)
override_attributes(
  # for td-agent
  :td_agent => {
    :api_key => 'foo_bar_buz',
    :plugins => [
      'rewrite'
    ]
  }
)

HTTP API Options

  • node[:td_agent][:in_http][:enable_api] = true

Access to the API may be disabled by setting enable_api to false. This may be of particular use when td-agent is being used on endpoint systems that are forwarding logs to a centralized td-agent server.

License

Copyright 2014-today Treasure Data, Inc.

The code is licensed under the Apache License 2.0 (see LICENSE for details).