Class: Chef::Application::Client

Inherits:
Chef::Application show all
Defined in:
lib/chef/application/client.rb

Constant Summary collapse

SELF_PIPE =

Mimic self_pipe sleep from Unicorn to capture signals safely

[]
IMMEDIATE_RUN_SIGNAL = 
"1".freeze
GRACEFUL_EXIT_SIGNAL = 
"2".freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Chef::Application

#auto_log_level?, chef_zero_server, #configure_chef, #configure_proxy_environment_variables, #configure_stdout_logger, debug_stacktrace, destroy_server_connectivity, exit!, fatal!, #initialize, #resolve_log_level, #run, #run_chef_client, setup_server_connectivity, #setup_signal_handlers, #using_output_formatter?, #want_additional_logger?

Constructor Details

This class inherits a constructor from Chef::Application

Instance Attribute Details

#chef_client_json ⇒ Object (readonly)

Returns the value of attribute chef_client_json.



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# File 'lib/chef/application/client.rb', line 242

def chef_client_json
  @chef_client_json
end

Instance Method Details

#configure_logging ⇒ Object 



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# File 'lib/chef/application/client.rb', line 288

def configure_logging
  super
  Mixlib::Authentication::Log.use_log_devices( Chef::Log )
  Ohai::Log.use_log_devices( Chef::Log )
end

#load_config_file ⇒ Object 



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# File 'lib/chef/application/client.rb', line 275

def load_config_file
  Chef::Config.config_file_jail = config[:config_file_jail] if config[:config_file_jail]
  if !config.has_key?(:config_file)
    if config[:local_mode]
      require 'chef/knife'
      config[:config_file] = Chef::Knife.locate_config_file
    else
      config[:config_file] = Chef::Config.platform_specific_path("/etc/chef/client.rb")
    end
  end
  super
end

#reconfigure ⇒ Object

Reconfigure the chef client Re-open the JSON attributes and load them into the node



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# File 'lib/chef/application/client.rb', line 246

def reconfigure
  super

  Chef::Config[:specific_recipes] = cli_arguments.map { |file| File.expand_path(file) }

  Chef::Config[:chef_server_url] = config[:chef_server_url] if config.has_key? :chef_server_url

  Chef::Config.local_mode = config[:local_mode] if config.has_key?(:local_mode)
  if Chef::Config.local_mode && !Chef::Config.has_key?(:cookbook_path) && !Chef::Config.has_key?(:chef_repo_path)
    Chef::Config.chef_repo_path = Chef::Config.find_chef_repo_path(Dir.pwd)
  end
  Chef::Config.chef_zero.host = config[:chef_zero_host] if config[:chef_zero_host]
  Chef::Config.chef_zero.port = config[:chef_zero_port] if config[:chef_zero_port]

  if Chef::Config[:daemonize]
    Chef::Config[:interval] ||= 1800
  end

  if Chef::Config[:once]
    Chef::Config[:interval] = nil
    Chef::Config[:splay] = nil
  end

  if Chef::Config[:json_attribs]
    config_fetcher = Chef::ConfigFetcher.new(Chef::Config[:json_attribs])
    @chef_client_json = config_fetcher.fetch_json
  end
end

#run_application ⇒ Object

Run the chef client, optionally daemonizing or looping at intervals.



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# File 'lib/chef/application/client.rb', line 299

def run_application
  unless Chef::Platform.windows?
    SELF_PIPE.replace IO.pipe

    trap("USR1") do
      Chef::Log.info("SIGUSR1 received, waking up")
      SELF_PIPE[1].putc(IMMEDIATE_RUN_SIGNAL) # wakeup master process from select
    end

    # see CHEF-5172
    if Chef::Config[:daemonize] || Chef::Config[:interval]
      trap("TERM") do
        Chef::Log.info("SIGTERM received, exiting gracefully")
        SELF_PIPE[1].putc(GRACEFUL_EXIT_SIGNAL)
      end
    end
  end

  if Chef::Config[:version]
    puts "Chef version: #{::Chef::VERSION}"
  end

  if Chef::Config[:daemonize]
    Chef::Daemon.daemonize("chef-client")
  end

  signal = nil

  loop do
    begin
      Chef::Application.exit!("Exiting", 0) if signal == GRACEFUL_EXIT_SIGNAL

      if Chef::Config[:splay] and signal != IMMEDIATE_RUN_SIGNAL
        splay = rand Chef::Config[:splay]
        Chef::Log.debug("Splay sleep #{splay} seconds")
        sleep splay
      end

      signal = nil
      run_chef_client(Chef::Config[:specific_recipes])

      if Chef::Config[:interval]
        Chef::Log.debug("Sleeping for #{Chef::Config[:interval]} seconds")
        signal = interval_sleep
      else
        Chef::Application.exit! "Exiting", 0
      end
    rescue SystemExit => e
      raise
    rescue Exception => e
      if Chef::Config[:interval]
        Chef::Log.error("#{e.class}: #{e}")
        Chef::Log.error("Sleeping for #{Chef::Config[:interval]} seconds before trying again")
        signal = interval_sleep
        retry
      else
        Chef::Application.fatal!("#{e.class}: #{e.message}", 1)
      end
    end
  end
end

#setup_application ⇒ Object 



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# File 'lib/chef/application/client.rb', line 294

def setup_application
  Chef::Daemon.change_privilege
end