chef-client -c client.rb -j dna.json

attributes.rb

# see http://github.com/opscode/cookbooks/blob/master/chef/attributes/default.rb

client.out

[Fri, 25 Jun 2010 14:29:42 -0700] INFO: Starting Chef Run
[Fri, 25 Jun 2010 14:29:42 -0700] INFO: Storing updated cookbooks/chef/recipes/client.rb in the cache.
[Fri, 25 Jun 2010 14:29:43 -0700] INFO: $$$$$$$$ http://chef.localdomain:4000
[Fri, 25 Jun 2010 14:29:43 -0700] INFO: %%%%%%%%%%% http://chef.localdomain:4000
[Fri, 25 Jun 2010 14:29:43 -0700] INFO: Writing updated content for template[/etc/chef/client.rb] to /etc/chef/client.rb
[Fri, 25 Jun 2010 14:29:43 -0700] INFO: Started service service[chef-client] successfully
[Fri, 25 Jun 2010 14:29:43 -0700] INFO: ########## http://chef.localdomain:4000
[Fri, 25 Jun 2010 14:29:43 -0700] INFO: template[/etc/chef/client.rb] sending create action to ruby_block[reload_client_config] (delayed)

client.rb

chef_server_url "http://mint-01:4000/"
cache_options({ :path => "/var/cache/chef/checksums", :skip_expires => true })
file_cache_path "/var/cache/chef"

dna.json

    {
        "chef": {
            "server_url": "http://mint-01:4000/",
            "path": "/var/lib/chef",
            "backup_path": "/var/lib/chef/backup",
            "cache_path": "/var/cache/chef",
            "run_path": "/var/run/chef"
        },
        "run_list": [ "role[client]" ]
    }

recipe.rb

# http://github.com/opscode/cookbooks/blob/master/chef/recipes/client.rb#L28-33

# [...]

Chef::Log.info("$$$$$$$$ #{node[:chef][:server_url]}")

ruby_block "reload_client_config" do
  Chef::Log.info("%%%%%%%%%%% #{node[:chef][:server_url]}")
  block do
    Chef::Log.info("########## #{node[:chef][:server_url]}")
    Chef::Config.from_file("/etc/chef/client.rb")
  end
  action :nothing
end