Class: Chef::Application::Client

Inherits:
Chef::Application show all
Includes:
Mixin::ShellOut, ChefConfig::Mixin::DotD
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
RECONFIGURE_SIGNAL = 
"H".freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Mixin::ShellOut

#a_to_s, #clean_array, #shell_out, #shell_out!, #shell_out_compact, #shell_out_compact!, #shell_out_compact_timeout, #shell_out_compact_timeout!, #shell_out_with_systems_locale, #shell_out_with_systems_locale!

Methods included from Mixin::PathSanity

#enforce_path_sanity, #sanitized_path

Methods inherited from Chef::Application

#apply_extra_config_options, #auto_log_level?, #chef_config, #chef_configfetcher, #configure_chef, #configure_encoding, #configure_log_location, #configure_stdout_logger, debug_stacktrace, #emit_warnings, exit!, fatal!, #initialize, #logger, logger, normalize_exit_code, #resolve_log_level, #run, #run_chef_client, #set_specific_recipes, use_separate_defaults?, #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 308

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 402

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 386

def load_config_file
  if !config.has_key?(:config_file) && !config[:disable_config]
    if config[:local_mode]
      config[:config_file] = Chef::WorkstationConfigLoader.new(nil, Chef::Log).config_location
    else
      config[:config_file] = Chef::Config.platform_specific_path("/etc/chef/client.rb")
    end
  end

  # Load the client.rb configuration
  super

  # Load all config files in client.d
  load_dot_d(Chef::Config[:client_d_dir]) if Chef::Config[:client_d_dir]
end

#reconfigure ⇒ Object

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

Raises:



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# File 'lib/chef/application/client.rb', line 312

def reconfigure
  super

  raise Chef::Exceptions::PIDFileLockfileMatch if Chef::Util::PathHelper.paths_eql? (Chef::Config[:pid_file] || "" ), (Chef::Config[:lockfile] || "")

  set_specific_recipes

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

  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.has_key?(:chef_repo_path) && Chef::Config.chef_repo_path.nil?
    Chef::Config.delete(:chef_repo_path)
    Chef::Log.warn "chef_repo_path was set in a config file but was empty. Assuming #{Chef::Config.chef_repo_path}"
  end

  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

  if Chef::Config[:recipe_url]
    if !Chef::Config.local_mode
      Chef::Application.fatal!("chef-client recipe-url can be used only in local-mode")
    else
      if Chef::Config[:delete_entire_chef_repo]
        Chef::Log.trace "Cleanup path #{Chef::Config.chef_repo_path} before extract recipes into it"
        FileUtils.rm_rf(recipes_path, :secure => true)
      end
      Chef::Log.trace "Creating path #{Chef::Config.chef_repo_path} to extract recipes into"
      FileUtils.mkdir_p(Chef::Config.chef_repo_path)
      tarball_path = File.join(Chef::Config.chef_repo_path, "recipes.tgz")
      fetch_recipe_tarball(Chef::Config[:recipe_url], tarball_path)
      Mixlib::Archive.new(tarball_path).extract(Chef::Config.chef_repo_path, perms: false, ignore: /^\.$/)
      config_path = File.join(Chef::Config.chef_repo_path, ".chef/config.rb")
      Chef::Config.from_string(IO.read(config_path), config_path) if File.file?(config_path)
    end
  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

  # supervisor processes are enabled by default for interval-running processes but not for one-shot runs
  if Chef::Config[:client_fork].nil?
    Chef::Config[:client_fork] = !!Chef::Config[:interval]
  end

  if !Chef::Config[:client_fork] && Chef::Config[:interval] && !Chef::Platform.windows?
    Chef::Application.fatal!(unforked_interval_error_message)
  end

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

  if mode = config[:audit_mode] || Chef::Config[:audit_mode]
    expected_modes = [:enabled, :disabled, :audit_only]
    unless expected_modes.include?(mode)
      Chef::Application.fatal!(unrecognized_audit_mode(mode))
    end
  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 432

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

  if !Chef::Config[:client_fork] || Chef::Config[:once]
    begin
      # run immediately without interval sleep, or splay
      run_chef_client(Chef::Config[:specific_recipes])
    rescue SystemExit
      raise
    rescue Exception => e
      Chef::Application.fatal!("#{e.class}: #{e.message}", e)
    end
  else
    interval_run_chef_client
  end
end

#setup_application ⇒ Object 



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# File 'lib/chef/application/client.rb', line 408

def setup_application
  Chef::Daemon.change_privilege
end

#setup_signal_handlers ⇒ Object 



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# File 'lib/chef/application/client.rb', line 412

def setup_signal_handlers
  super

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

    trap("USR1") do
      Chef::Log.info("SIGUSR1 received, will run now or after the current run")
      SELF_PIPE[1].putc(IMMEDIATE_RUN_SIGNAL) # wakeup master process from select
    end

    # Override the trap setup in the parent so we can avoid running reconfigure during a run
    trap("HUP") do
      Chef::Log.info("SIGHUP received, will reconfigure now or after the current run")
      SELF_PIPE[1].putc(RECONFIGURE_SIGNAL) # wakeup master process from select
    end
  end
end