Class: CycleChefHandler
- Inherits:
-
Chef::Handler
- Object
- Chef::Handler
- CycleChefHandler
- Defined in:
- lib/cycle_chef_handler.rb
Constant Summary collapse
- VERSION =
'1.2.0'
Instance Method Summary collapse
- #check_amqp_config ⇒ Object
- #clear_count_file(count_file) ⇒ Object
- #create_ad ⇒ Object
- #increment_count_file(count_file) ⇒ Object
-
#initialize(params) ⇒ CycleChefHandler
constructor
A new instance of CycleChefHandler.
- #report ⇒ Object
Constructor Details
#initialize(params) ⇒ CycleChefHandler
Returns a new instance of CycleChefHandler.
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# File 'lib/cycle_chef_handler.rb', line 31 def initialize(params) defaults = {:queue => 'chef.converges', :exchange => 'chef.converges'} @amqp_config = defaults.merge(params[:amqp_config]) check_amqp_config @extras = params[:extras] @converge_index_file = params[:converge_index_file] || '/var/run/chef/converge_index' @failed_converge_file = params[:failed_converge_count_file] || '/var/run/chef/failed_converge_count' end |
Instance Method Details
#check_amqp_config ⇒ Object
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# File 'lib/cycle_chef_handler.rb', line 43 def check_amqp_config [:host, :queue, :exchange].each do |i| if not @amqp_config[i] raise ArgumentError, ":amqp_config missing value for #{i}" end end end |
#clear_count_file(count_file) ⇒ Object
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# File 'lib/cycle_chef_handler.rb', line 161 def clear_count_file(count_file) if File.exist? count_file FileUtils.rm count_file end end |
#create_ad ⇒ Object
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# File 'lib/cycle_chef_handler.rb', line 92 def create_ad ad = ClassAd.new ad['AdType'] = 'Chef.Host' ad['ChefNode'] = Chef::Config[:node_name] ad['ConvergeStartTime'] = start_time ad['ConvergeEndTime'] = end_time ad['ConvergeElapsedTime'] = RelativeTime.new(elapsed_time) updated = [] if not updated_resources.nil? updated = updated_resources.map {|x| x.to_s} end ad['UpdatedResources'] = updated ad['UpdatedResourcesCount'] = updated.size ad['ConvergeIndex'] = increment_count_file(@converge_index_file) ad['ChefServerUrl'] = Chef::Config[:chef_server_url] ad['ChefServerHostName'] = URI.parse(Chef::Config[:chef_server_url]).host ad['ChefClientVersion'] = Chef::VERSION ad['CycleChefHandlerVersion'] = CycleChefHandler::VERSION ad['Success'] = success? exception = nil backtrace = nil if failed? exception = run_status.formatted_exception backtrace = run_status.backtrace ad['FailedConvergeCount'] = increment_count_file(@failed_converge_file) else clear_count_file(@failed_converge_file) ad['FailedConvergeCount'] = 0 end ad['Exception'] = exception ad['Backtrace'] = backtrace @extras.each do |k,v| ad[k] = v end ad end |
#increment_count_file(count_file) ⇒ Object
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# File 'lib/cycle_chef_handler.rb', line 135 def increment_count_file(count_file) file_dir = File.dirname(count_file) if not File.directory? file_dir FileUtils.mkdir_p file_dir end count = nil if File.exists? count_file File.open(count_file) do |file| count = file.readline.chomp.to_i end end if count.nil? count = 1 else count += 1 end File.open(count_file, "w") do |file| file.puts(count) end count end |
#report ⇒ Object
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# File 'lib/cycle_chef_handler.rb', line 51 def report ## Create and Post a classad ad = create_ad payload = "<classads>" + ad.to_xml + "</classads>" begin b = Bunny.new(@amqp_config) b.start e = b.exchange(@amqp_config[:exchange], :type => :topic, :durable => true, :auto_delete => false) # declare and bind a non-auto-delete queue here to make sure we don't # lose any messages posted to an exchange w/o a bound queue # make the queue non-durable so we can drop it with a broker reboot q = b.queue(@amqp_config[:queue], :auto_delete => false) q.bind(@amqp_config[:exchange], :key => @amqp_config[:queue]) e.publish(payload, :key => @amqp_config[:queue]) rescue Exception => e # log any exceptions, but don't throw one. trace = e.backtrace.join("\n") Chef::Log.error("Failed to post converge history report: #{e.} #{trace}") return ensure b.stop end Chef::Log.info("Posted converge history report") end |