Method: Chef::Application::Client#run_application

Defined in:
lib/chef/application/client.rb

#run_application ⇒ Object

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



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# File 'lib/chef/application/client.rb', line 272

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('.') # wakeup master process from select
    end
  end

  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
      run_chef_client
      if Chef::Config[:interval]
        Chef::Log.debug("Sleeping for #{Chef::Config[:interval]} seconds")
        unless SELF_PIPE.empty?
          client_sleep Chef::Config[:interval]
        else
          # Windows
          sleep Chef::Config[:interval]
        end
      else
        Chef::Application.exit! "Exiting", 0
      end
    rescue Chef::Application::Wakeup => e
      Chef::Log.debug("Received Wakeup signal.  Starting run.")
      next
    rescue SystemExit => e
      raise
    rescue Exception => e
      if Chef::Config[:interval]
        Chef::Log.error("#{e.class}: #{e}")
        Chef::Application.debug_stacktrace(e)
        Chef::Log.error("Sleeping for #{Chef::Config[:interval]} seconds before trying again")
        unless SELF_PIPE.empty?
          client_sleep Chef::Config[:interval]
        else
          # Windows
          sleep Chef::Config[:interval]
        end
        retry
      else
        Chef::Application.debug_stacktrace(e)
        Chef::Application.fatal!("#{e.class}: #{e.message}", 1)
      end
    end
  end
end