/
system_config.rb
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/
system_config.rb
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#
# Fluent
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
require 'fluent/configurable'
require 'fluent/config/element'
module Fluent
class SystemConfig
include Configurable
SYSTEM_CONFIG_PARAMETERS = [
:workers, :restart_worker_interval, :root_dir, :log_level,
:suppress_repeated_stacktrace, :emit_error_log_interval, :suppress_config_dump,
:log_event_verbose, :ignore_repeated_log_interval, :ignore_same_log_interval,
:without_source, :rpc_endpoint, :enable_get_dump, :process_name,
:file_permission, :dir_permission, :counter_server, :counter_client,
:strict_config_value, :enable_msgpack_time_support, :disable_shared_socket,
:metrics, :enable_input_metrics, :enable_size_metrics
]
config_param :workers, :integer, default: 1
config_param :restart_worker_interval, :time, default: 0
config_param :root_dir, :string, default: nil
config_param :log_level, :enum, list: [:trace, :debug, :info, :warn, :error, :fatal], default: 'info'
config_param :suppress_repeated_stacktrace, :bool, default: nil
config_param :ignore_repeated_log_interval, :time, default: nil
config_param :ignore_same_log_interval, :time, default: nil
config_param :emit_error_log_interval, :time, default: nil
config_param :suppress_config_dump, :bool, default: nil
config_param :log_event_verbose, :bool, default: nil
config_param :without_source, :bool, default: nil
config_param :rpc_endpoint, :string, default: nil
config_param :enable_get_dump, :bool, default: nil
config_param :process_name, :string, default: nil
config_param :strict_config_value, :bool, default: nil
config_param :enable_msgpack_time_support, :bool, default: nil
config_param :disable_shared_socket, :bool, default: nil
config_param :enable_input_metrics, :bool, default: nil
config_param :enable_size_metrics, :bool, default: nil
config_param :file_permission, default: nil do |v|
v.to_i(8)
end
config_param :dir_permission, default: nil do |v|
v.to_i(8)
end
config_section :log, required: false, init: true, multi: false do
config_param :format, :enum, list: [:text, :json], default: :text
config_param :time_format, :string, default: '%Y-%m-%d %H:%M:%S %z'
config_param :rotate_age, default: nil do |v|
if Fluent::Log::LOG_ROTATE_AGE.include?(v)
v.to_sym
else
begin
Integer(v)
rescue ArgumentError => e
raise Fluent::ConfigError, e.message
else
v.to_i
end
end
end
config_param :rotate_size, :size, default: nil
end
config_section :counter_server, multi: false do
desc 'scope name of counter server'
config_param :scope, :string
desc 'the port of counter server to listen to'
config_param :port, :integer, default: nil
desc 'the bind address of counter server to listen to'
config_param :bind, :string, default: nil
desc 'backup file path of counter values'
config_param :backup_path, :string
end
config_section :counter_client, multi: false do
desc 'the port of counter server'
config_param :port, :integer, default: nil
desc 'the IP address or hostname of counter server'
config_param :host, :string
desc 'the timeout of each operation'
config_param :timeout, :time, default: nil
end
config_section :metrics, multi: false do
config_param :@type, :string, default: "local"
config_param :labels, :hash, default: {}
end
def self.create(conf, strict_config_value=false)
systems = conf.elements(name: 'system')
return SystemConfig.new if systems.empty?
raise Fluent::ConfigError, "<system> is duplicated. <system> should be only one" if systems.size > 1
SystemConfig.new(systems.first, strict_config_value)
end
def self.blank_system_config
Fluent::Config::Element.new('<SYSTEM>', '', {}, [])
end
def self.overwrite_system_config(hash)
older = defined?($_system_config) ? $_system_config : nil
begin
$_system_config = SystemConfig.new(Fluent::Config::Element.new('system', '', hash, []))
yield
ensure
$_system_config = older
end
end
def initialize(conf=nil, strict_config_value=false)
super()
conf ||= SystemConfig.blank_system_config
configure(conf, strict_config_value)
end
def configure(conf, strict_config_value=false)
strict = strict_config_value
if !strict && conf && conf.has_key?("strict_config_value")
strict = Fluent::Config.bool_value(conf["strict_config_value"])
end
begin
super(conf, strict)
rescue ConfigError => e
$log.error "config error in:\n#{conf}"
$log.error 'config error', error: e
$log.debug_backtrace
exit!(1)
end
@log_level = Log.str_to_level(@log_level.to_s) if @log_level
end
def dup
s = SystemConfig.new
SYSTEM_CONFIG_PARAMETERS.each do |param|
s.__send__("#{param}=", instance_variable_get("@#{param}"))
end
s
end
def overwrite_variables(**opt)
SYSTEM_CONFIG_PARAMETERS.each do |param|
if opt.key?(param) && !opt[param].nil? && instance_variable_defined?("@#{param}")
instance_variable_set("@#{param}", opt[param])
end
end
end
module Mixin
def system_config
require 'fluent/engine'
unless defined?($_system_config)
$_system_config = nil
end
(instance_variable_defined?("@_system_config") && @_system_config) ||
$_system_config || Fluent::Engine.system_config
end
def system_config_override(opts={})
require 'fluent/engine'
if !instance_variable_defined?("@_system_config") || @_system_config.nil?
@_system_config = (defined?($_system_config) && $_system_config ? $_system_config : Fluent::Engine.system_config).dup
end
opts.each_pair do |key, value|
@_system_config.__send__(:"#{key.to_s}=", value)
end
end
end
end
end