Class: Fluent::Plugin::FileServiceDiscovery

Inherits:
ServiceDiscovery show all
Includes:
Fluent::PluginHelper::Mixin
Defined in:
lib/fluent/plugin/sd_file.rb

Defined Under Namespace

Classes: StatWatcher

Constant Summary collapse

DEFAULT_FILE_TYPE = 
:yaml
DEFAUT_WEIGHT = 
60
DEFAULT_SD_FILE_PATH = 
ENV['DEFAULT_SD_FILE_PATH'] || '/etc/fluent/sd.yaml'

Constants inherited from ServiceDiscovery

ServiceDiscovery::SERVICE_IN, ServiceDiscovery::SERVICE_OUT

Constants included from Configurable

Configurable::CONFIG_TYPE_REGISTRY

Instance Attribute Summary

Attributes inherited from ServiceDiscovery

#services

Attributes included from Fluent::PluginLoggerMixin

#log

Attributes inherited from Base

#under_plugin_development

Instance Method Summary collapse

Methods included from Fluent::PluginHelper::Mixin

included

Methods inherited from ServiceDiscovery

service_in_msg, service_out_msg

Methods included from UniqueId::Mixin

#dump_unique_id_hex, #generate_unique_id

Methods included from Fluent::PluginLoggerMixin

included, #terminate

Methods included from Fluent::PluginId

#plugin_id, #plugin_id_configured?, #plugin_id_for_test?, #plugin_root_dir, #stop

Methods inherited from Base

#acquire_worker_lock, #after_shutdown, #after_shutdown?, #after_start, #after_started?, #before_shutdown, #before_shutdown?, #called_in_test?, #close, #closed?, #configured?, #context_router, #context_router=, #fluentd_worker_id, #get_lock_path, #has_router?, #inspect, #multi_workers_ready?, #plugin_root_dir, #reloadable_plugin?, #shutdown, #shutdown?, #started?, #stop, #stopped?, #string_safe_encoding, #terminate, #terminated?

Methods included from SystemConfig::Mixin

#system_config, #system_config_override

Methods included from Configurable

#config, #configure_proxy_generate, #configured_section_create, included, lookup_type, register_type

Constructor Details

#initialize ⇒ FileServiceDiscovery

Returns a new instance of FileServiceDiscovery.



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# File 'lib/fluent/plugin/sd_file.rb', line 38

def initialize
  super

  @file_type = nil
end

Instance Method Details

#configure(conf) ⇒ Object 



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# File 'lib/fluent/plugin/sd_file.rb', line 44

def configure(conf)
  super

  unless File.exist?(@path)
    raise Fluent::ConfigError, "sd_file: path=#{@path} not found"
  end

  @file_type = File.basename(@path).split('.', 2).last.to_sym
  unless %i[yaml yml json].include?(@file_type)
    @file_type = DEFAULT_FILE_TYPE
  end

  @services = fetch_server_info
end

#start(queue) ⇒ Object 



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# File 'lib/fluent/plugin/sd_file.rb', line 59

def start(queue)
  watcher = StatWatcher.new(@path, @log) do |_prev, _cur|
    refresh_file(queue)
  end
  event_loop_attach(watcher)

  super()
end