Class: Chef::Application::Client

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

Instance Method Summary collapse

Methods inherited from Chef::Application

#configure_chef, #configure_logging, exit!, fatal!, #run

Constructor Details

#initialize ⇒ Client

Returns a new instance of Client.



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# File 'lib/chef/application/client.rb', line 118

def initialize
  super

  @chef_client = nil
  @chef_client_json = nil
end

Instance Method Details

#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 127

def reconfigure 
  super 

  Chef::Config[:chef_server_url] = config[:chef_server_url] if config.has_key? :chef_server_url
 
  if Chef::Config[:daemonize]
    Chef::Config[:interval] ||= 1800
  end

  if Chef::Config[:json_attribs]
    begin
        json_io = open(Chef::Config[:json_attribs])
    rescue SocketError => error
      Chef::Application.fatal!("I cannot connect to #{Chef::Config[:json_attribs]}", 2)
    rescue Errno::ENOENT => error
      Chef::Application.fatal!("I cannot find #{Chef::Config[:json_attribs]}", 2)
    rescue Errno::EACCES => error
      Chef::Application.fatal!("Permissions are incorrect on #{Chef::Config[:json_attribs]}. Please chmod a+r #{Chef::Config[:json_attribs]}", 2)
    rescue Exception => error
      Chef::Application.fatal!("Got an unexpected error reading #{Chef::Config[:json_attribs]}: #{error.message}", 2)
    end

    begin
      @chef_client_json = JSON.parse(json_io.read)
    rescue JSON::ParserError => error
      Chef::Application.fatal!("Could not parse the provided JSON file (#{Chef::Config[:json_attribs]})!: " + error.message, 2)
    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 169

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

  if Chef::Config[:daemonize]
    Chef::Daemon.daemonize("chef-client")
  end
  
  loop do
    begin
      if Chef::Config[:splay]
        splay = rand Chef::Config[:splay]
        Chef::Log.debug("Splay sleep #{splay} seconds")
        sleep splay
      end

      @chef_client.run
      
      if Chef::Config[:interval]
        Chef::Log.debug("Sleeping for #{Chef::Config[:interval]} seconds")
        sleep Chef::Config[:interval]
      else
        Chef::Application.exit! "Exiting", 0
      end
    rescue SystemExit => e
      raise
    rescue Exception => e
      if Chef::Config[:interval]
        Chef::Log.error("#{e.class}")
        Chef::Log.fatal("#{e}\n#{e.backtrace.join("\n")}")
        Chef::Log.fatal("Sleeping for #{Chef::Config[:interval]} seconds before trying again")
        sleep Chef::Config[:interval]
        retry
      else
        raise
      end
    end
  end
end

#setup_application ⇒ Object

Setup an instance of the chef client Why is this so ugly? surely the client should just read out of chef::config instead of needing the values to be assigned like this..



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# File 'lib/chef/application/client.rb', line 159

def setup_application
  Chef::Daemon.change_privilege

  @chef_client = Chef::Client.new
  @chef_client.json_attribs = @chef_client_json
  @chef_client.validation_token = Chef::Config[:validation_token]
  @chef_client.node_name = Chef::Config[:node_name]   
end