restartmenow.rb

template "/etc/sysconfig/chef-client" do
 ..
end

ruby_block "restart chef the redhat way" do
  block do
    r = Chef::REST.new(Chef::Config[:chef_server_url])
    safe_name = node.name.gsub(/\./, '_')
    begin
      r.put_rest("nodes/#{safe_name}", node)
    rescue Net::HTTPServerException => e
      if e.response.code == "404"
        r.post_rest("nodes", node)
      else
        raise e
      end
    end
    cid = fork
    if cid # we're the parent
      Chef::Log.fatal("Restarting!")
      exit 0
    else   # we're the child
      sleep 10
      exec("/etc/init.d/chef-client start")
    end
  end
  action :nothing
  subscribes :create, resources(:template => "/etc/sysconfig/chef-client")
end