Class: LogStash::Runner
- Inherits:
-
Clamp::StrictCommand
- Object
- Command
- Clamp::StrictCommand
- LogStash::Runner
- Includes:
- Util::Loggable
- Defined in:
- lib/logstash/runner.rb
Constant Summary collapse
- DEFAULT_BOOTSTRAP_CHECKS =
Ordered list of check to run before starting logstash theses checks can be changed by a plugin loaded into memory.
[ LogStash::BootstrapCheck::BadRuby, LogStash::BootstrapCheck::BadJava, LogStash::BootstrapCheck::DefaultConfig ]
Instance Attribute Summary collapse
-
#agent ⇒ Object
readonly
Returns the value of attribute agent.
-
#bootstrap_checks ⇒ Object
Returns the value of attribute bootstrap_checks.
-
#settings ⇒ Object
readonly
Returns the value of attribute settings.
-
#source_loader ⇒ Object
readonly
Returns the value of attribute source_loader.
Instance Method Summary collapse
-
#configure_plugin_paths(paths) ⇒ Object
add the given paths for ungemified/bare plugins lookups.
- #create_agent(*args) ⇒ Object
- #execute ⇒ Object
-
#fail(message) ⇒ Object
Emit a failure message and abort.
-
#initialize(*args) ⇒ Runner
constructor
A new instance of Runner.
- #run(args) ⇒ Object
- #setting(key) ⇒ Object
-
#show_gems ⇒ Object
def show_version_java.
-
#show_short_help ⇒ Object
def fail.
-
#show_version ⇒ Object
def self.main.
-
#show_version_java ⇒ Object
def show_version_ruby.
-
#show_version_logstash ⇒ Object
def show_version.
-
#show_version_ruby ⇒ Object
def show_version_logstash.
- #start_shell(shell, start_binding) ⇒ Object
- #trap_sighup ⇒ Object
- #trap_sigint ⇒ Object
- #trap_sigterm ⇒ Object
Methods included from Util::Loggable
included, #logger, #slow_logger
Methods inherited from Clamp::StrictCommand
Methods included from Clamp::Option::StrictDeclaration
#define_deprecated_accessors_for, #define_deprecated_writer_for, #define_reader_for, #define_simple_writer_for
Constructor Details
#initialize(*args) ⇒ Runner
Returns a new instance of Runner.
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# File 'lib/logstash/runner.rb', line 204 def initialize(*args) @settings = LogStash::SETTINGS @bootstrap_checks = DEFAULT_BOOTSTRAP_CHECKS.dup # Default we check local sources: `-e`, `-f` and the logstash.yml options. @source_loader = LogStash::Config::SourceLoader.new(@settings) @source_loader.add_source(LogStash::Config::Source::Local.new(@settings)) @source_loader.add_source(LogStash::Config::Source::Modules.new(@settings)) @source_loader.add_source(LogStash::Config::Source::MultiLocal.new(@settings)) super(*args) end |
Instance Attribute Details
#agent ⇒ Object (readonly)
Returns the value of attribute agent.
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# File 'lib/logstash/runner.rb', line 201 def agent @agent end |
#bootstrap_checks ⇒ Object
Returns the value of attribute bootstrap_checks.
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# File 'lib/logstash/runner.rb', line 202 def bootstrap_checks @bootstrap_checks end |
#settings ⇒ Object (readonly)
Returns the value of attribute settings.
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# File 'lib/logstash/runner.rb', line 201 def settings @settings end |
#source_loader ⇒ Object (readonly)
Returns the value of attribute source_loader.
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# File 'lib/logstash/runner.rb', line 201 def source_loader @source_loader end |
Instance Method Details
#configure_plugin_paths(paths) ⇒ Object
add the given paths for ungemified/bare plugins lookups
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# File 'lib/logstash/runner.rb', line 419 def configure_plugin_paths(paths) Array(paths).each do |path| fail(I18n.t("logstash.runner.configuration.plugin_path_missing", :path => path)) unless File.directory?(path) LogStash::Environment.add_plugin_path(path) end end |
#create_agent(*args) ⇒ Object
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# File 'lib/logstash/runner.rb', line 426 def create_agent(*args) LogStash::Agent.new(*args) end |
#execute ⇒ Object
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# File 'lib/logstash/runner.rb', line 222 def execute LogStash::Util::SettingsHelper.post_process require "logstash/util" require "logstash/util/java_version" require "stud/task" # Configure Logstash logging facility, this need to be done before everything else to # make sure the logger has the correct settings and the log level is correctly defined. java.lang.System.setProperty("ls.logs", setting("path.logs")) java.lang.System.setProperty("ls.log.format", setting("log.format")) java.lang.System.setProperty("ls.log.level", setting("log.level")) unless java.lang.System.getProperty("log4j.configurationFile") log4j_config_location = ::File.join(setting("path.settings"), "log4j2.properties") # Windows safe way to produce a file: URI. file_schema = "file://" + (LogStash::Environment.windows? ? "/" : "") LogStash::Logging::Logger::reconfigure(URI.encode(file_schema + File.absolute_path(log4j_config_location))) end # override log level that may have been introduced from a custom log4j config file LogStash::Logging::Logger::configure_logging(setting("log.level")) if setting("config.debug") && !logger.debug? logger.warn("--config.debug was specified, but log.level was not set to \'debug\'! No config info will be logged.") end # Skip any validation and just return the version if version? show_version return 0 end # Add local modules to the registry before everything else LogStash::Modules::Util.register_local_modules(LogStash::Environment::LOGSTASH_HOME) # We configure the registry and load any plugin that can register hooks # with logstash, this need to be done before any operation. LogStash::PLUGIN_REGISTRY.setup! @dispatcher = LogStash::EventDispatcher.new(self) LogStash::PLUGIN_REGISTRY.hooks.register_emitter(self.class, @dispatcher) @settings.validate_all @dispatcher.fire(:before_bootstrap_checks) return start_shell(setting("interactive"), binding) if setting("interactive") module_parser = LogStash::Modules::CLIParser.new(@modules_list, @modules_variable_list) # Now populate Setting for modules.list with our parsed array. @settings.set("modules.cli", module_parser.output) begin @bootstrap_checks.each { |bootstrap| bootstrap.check(@settings) } rescue LogStash::BootstrapCheckError => e signal_usage_error(e.) return 1 end @dispatcher.fire(:after_bootstrap_checks) LogStash::Util::set_thread_name(self.class.name) LogStash::ShutdownWatcher.unsafe_shutdown = setting("pipeline.unsafe_shutdown") configure_plugin_paths(setting("path.plugins")) @settings.format_settings.each {|line| logger.debug(line) } # Check for absence of any configuration # not bulletproof because we don't know yet if there # are no pipelines from pipelines.yml sources_without_conflict = [] = [] @source_loader.sources do |source| if source.config_conflict? if source..any? << source..join(", ") end else sources_without_conflict << source end end if .any? # i18n should be done at the sources side signal_usage_error(.join(" ")) return 1 elsif sources_without_conflict.empty? signal_usage_error(I18n.t("logstash.runner.missing-configuration")) return 1 end if setting("config.test_and_exit") begin results = @source_loader.fetch # TODO(ph): make it better for multiple pipeline if results.success? results.response.each do |pipeline_config| LogStash::BasePipeline.new(pipeline_config) end puts "Configuration OK" logger.info "Using config.test_and_exit mode. Config Validation Result: OK. Exiting Logstash" else raise "Could not load the configuration file" end return 0 rescue => e logger.fatal I18n.t("logstash.runner.invalid-configuration", :error => e.) return 1 end end # lock path.data before starting the agent @data_path_lock = FileLockFactory.obtainLock(setting("path.data"), ".lock"); @dispatcher.fire(:before_agent) @agent = create_agent(@settings, @source_loader) @dispatcher.fire(:after_agent) # enable sigint/sigterm before starting the agent # to properly handle a stalled agent sigint_id = trap_sigint() sigterm_id = trap_sigterm() logger.info("Starting Logstash", "logstash.version" => LOGSTASH_VERSION) @agent_task = Stud::Task.new { @agent.execute } # no point in enabling config reloading before the agent starts # also windows doesn't have SIGHUP. we can skip it sighup_id = LogStash::Environment.windows? ? nil : trap_sighup() agent_return = @agent_task.wait @agent.shutdown # flush any outstanding log messages during shutdown org.apache.logging.log4j.LogManager.shutdown agent_return rescue org.logstash.LockException => e logger.fatal(I18n.t("logstash.runner.locked-data-path", :path => setting("path.data"))) return 1 rescue Clamp::UsageError => e $stderr.puts "ERROR: #{e.}" show_short_help return 1 rescue => e # if logger itself is not initialized if LogStash::Logging::Logger.get_logging_context.nil? $stderr.puts "#{I18n.t("oops")} :error => #{e}, :backtrace => #{e.backtrace}" else logger.fatal(I18n.t("oops"), :error => e, :backtrace => e.backtrace) end return 1 ensure Stud::untrap("INT", sigint_id) unless sigint_id.nil? Stud::untrap("TERM", sigterm_id) unless sigterm_id.nil? Stud::untrap("HUP", sighup_id) unless sighup_id.nil? FileLockFactory.releaseLock(@data_path_lock) if @data_path_lock @log_fd.close if @log_fd end |
#fail(message) ⇒ Object
Emit a failure message and abort.
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# File 'lib/logstash/runner.rb', line 431 def fail() signal_usage_error() end |
#run(args) ⇒ Object
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# File 'lib/logstash/runner.rb', line 217 def run(args) return 1 unless LogStash::Util::SettingsHelper.from_yaml(args) super(*[args]) end |
#setting(key) ⇒ Object
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# File 'lib/logstash/runner.rb', line 486 def setting(key) @settings.get_value(key) end |
#show_gems ⇒ Object
def show_version_java
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# File 'lib/logstash/runner.rb', line 410 def show_gems require "rubygems" Gem::Specification.each do |spec| puts "gem #{spec.name} #{spec.version}" end end |
#show_short_help ⇒ Object
def fail
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# File 'lib/logstash/runner.rb', line 435 def show_short_help puts I18n.t("logstash.runner.short-help") end |
#show_version ⇒ Object
def self.main
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# File 'lib/logstash/runner.rb', line 386 def show_version show_version_logstash if logger.info? show_version_ruby show_version_java show_gems if logger.debug? end end |
#show_version_java ⇒ Object
def show_version_ruby
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# File 'lib/logstash/runner.rb', line 404 def show_version_java properties = java.lang.System.getProperties puts "java #{properties["java.version"]} (#{properties["java.vendor"]})" puts "jvm #{properties["java.vm.name"]} / #{properties["java.vm.version"]}" end |
#show_version_logstash ⇒ Object
def show_version
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# File 'lib/logstash/runner.rb', line 396 def show_version_logstash puts "logstash #{LOGSTASH_VERSION}" end |
#show_version_ruby ⇒ Object
def show_version_logstash
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# File 'lib/logstash/runner.rb', line 400 def show_version_ruby puts RUBY_DESCRIPTION end |
#start_shell(shell, start_binding) ⇒ Object
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# File 'lib/logstash/runner.rb', line 439 def start_shell(shell, start_binding) case shell when "pry" require 'pry' start_binding.pry when "irb" require 'irb' ARGV.clear # TODO: set binding to this instance of Runner # currently bugged as per https://github.com/jruby/jruby/issues/384 IRB.start(__FILE__) else fail(I18n.t("logstash.runner.invalid-shell")) end end |
#trap_sighup ⇒ Object
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# File 'lib/logstash/runner.rb', line 455 def trap_sighup Stud::trap("HUP") do logger.warn(I18n.t("logstash.agent.sighup")) @agent.converge_state_and_update end end |
#trap_sigint ⇒ Object
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# File 'lib/logstash/runner.rb', line 469 def trap_sigint Stud::trap("INT") do if @interrupted_once logger.fatal(I18n.t("logstash.agent.forced_sigint")) # calling just Kernel.exit only raises SystemExit exception # and doesn't guarantee the process will terminate # We must call Kernel.exit! so java.lang.System.exit is called exit!(1) else logger.warn(I18n.t("logstash.agent.sigint")) Thread.new(logger) {|lg| sleep 5; lg.warn(I18n.t("logstash.agent.slow_shutdown")) } @interrupted_once = true @agent_task.stop! end end end |
#trap_sigterm ⇒ Object
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# File 'lib/logstash/runner.rb', line 462 def trap_sigterm Stud::trap("TERM") do logger.warn(I18n.t("logstash.agent.sigterm")) @agent_task.stop! end end |