# File lib/chef/application.rb, line 34 def initialize super @chef_client = nil @chef_client_json = nil trap("TERM") do Chef::Application.fatal!("SIGTERM received, stopping", 1) end trap("INT") do Chef::Application.fatal!("SIGINT received, stopping", 2) end unless Chef::Platform.windows? trap("QUIT") do Chef::Log.info("SIGQUIT received, call stack:\n " + caller.join("\n ")) end trap("HUP") do Chef::Log.info("SIGHUP received, reconfiguring") reconfigure end end # Always switch to a readable directory. Keeps subsequent Dir.chdir() {} # from failing due to permissions when launched as a less privileged user. end
Parse the configuration file
# File lib/chef/application.rb, line 76 def configure_chef parse_options begin case config[:config_file] when /^(http|https):\/\// Chef::REST.new("", nil, nil).fetch(config[:config_file]) { |f| apply_config(f.path) } else ::File::open(config[:config_file]) { |f| apply_config(f.path) } end rescue Errno::ENOENT => error Chef::Log.warn("*****************************************") Chef::Log.warn("Did not find config file: #{config[:config_file]}, using command line options.") Chef::Log.warn("*****************************************") Chef::Config.merge!(config) rescue SocketError => error Chef::Application.fatal!("Error getting config file #{Chef::Config[:config_file]}", 2) rescue Chef::Exceptions::ConfigurationError => error Chef::Application.fatal!("Error processing config file #{Chef::Config[:config_file]} with error #{error.message}", 2) rescue Exception => error Chef::Application.fatal!("Unknown error processing config file #{Chef::Config[:config_file]} with error #{error.message}", 2) end end
Initialize and configure the logger. If the configured log location is not STDOUT, but stdout is a TTY and we're not daemonizing, we set up a secondary logger with output to stdout. This way, we magically do the right thing when the user has configured logging to a file but they're running chef in the shell to debug something.
If the user has configured a formatter, then we skip the magical logger to keep the output pretty.
# File lib/chef/application.rb, line 110 def configure_logging require 'pp' Chef::Log.init(Chef::Config[:log_location]) if ( Chef::Config[:log_location] != STDOUT ) && STDOUT.tty? && (!Chef::Config[:daemonize]) && (Chef::Config.formatter == "null") stdout_logger = Logger.new(STDOUT) STDOUT.sync = true stdout_logger.formatter = Chef::Log.logger.formatter Chef::Log.loggers << stdout_logger end Chef::Log.level = Chef::Config[:log_level] end
Reconfigure the application. You'll want to override and super this method.
# File lib/chef/application.rb, line 63 def reconfigure configure_chef configure_logging end
Get this party started
# File lib/chef/application.rb, line 69 def run reconfigure setup_application run_application end
Actually run the application
# File lib/chef/application.rb, line 128 def run_application raise Chef::Exceptions::Application, "#{self.to_s}: you must override run_application" end
Initializes Chef::Client instance and runs it
# File lib/chef/application.rb, line 133 def run_chef_client @chef_client = Chef::Client.new( @chef_client_json, :override_runlist => config[:override_runlist] ) @chef_client_json = nil @chef_client.run @chef_client = nil end
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