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?, #configure_chef, #configure_stdout_logger, debug_stacktrace, destroy_server_connectivity, exit!, fatal!, #initialize, #resolve_log_level, #run, #run_chef_client, setup_server_connectivity, #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.



233
234
235
 
# File 'lib/chef/application/client.rb', line 233

def chef_client_json
  @chef_client_json
end

Instance Method Details

#configure_logging ⇒ Object 



278
279
280
281
282
 
# File 'lib/chef/application/client.rb', line 278

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

#load_config_file ⇒ Object 



265
266
267
268
269
270
271
272
273
274
275
276
 
# File 'lib/chef/application/client.rb', line 265

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



237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
 
# File 'lib/chef/application/client.rb', line 237

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.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.



289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
 
# File 'lib/chef/application/client.rb', line 289

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 



284
285
286
 
# File 'lib/chef/application/client.rb', line 284

def setup_application
  Chef::Daemon.change_privilege
end