Updated Resources Report Handler

updated_resources.rb

require 'chef/handler'
require 'chef/log'
require 'json'


# Based on http://dev.nuclearrooster.com/2011/05/10/chef-notifying-and-logging-updated-resources/


module Handlers
  class UpdatedResources < Chef::Handler

    def initialize opts={}
      @max_entries = opts[:max_entries] || 25
    end


    def report
      updates = run_status.updated_resources.map do |resource|
        {
          'time' => Time.now,
          'cookbook_name' => resource.cookbook_name,
          'recipe_name' => resource.recipe_name,
          'action' => resource.action,
          'resource' => resource.name,
          'resource_type' => resource.resource_name,

          # If you're also running the Cookbook Versions handler...
          # (https://gist.github.com/sczizzo/c24b1a7bb76e770c5e95)
          # 'cookbook_version' => node['cookbooks'][resource.cookbook_name]
        }
      end

      node.automatic['log'] ||= []
      log = node.automatic['log'].to_a
      updates.each do |update|
        log.unshift update
      end

      node.automatic['log'] = log.take @max_entries
      node.save

      Chef::Log.debug 'Updated Resources: %s' % JSON.pretty_generate(node['log'].reverse)
    end

  end
end