Enable configuration of ELB health check parameters.

README.md

@@ -58,6 +58,19 @@ search:
       action :create
     end
 
+You can configure the `health check` parameters from the defaults by specifying
+the `health_check` attribute with a hash:
+
+    elb_load_balancer "ap-tcp-frontend" do
+      aws_access_key        aws['aws_access_key_id']
+      aws_secret_access_key aws['aws_secret_access_key']
+      instances             ['i-xxxxx', 'i-xxxxx']
+      region                'ap-southeast-1'
+      listeners             [{"InstancePort" => 1234, "Protocol" => "TCP", "LoadBalancerPort" => 1234}]
+      health_check          [{"HealthyThreshold" => 10, "Interval" => 30, "Target" => "HTTP:80/ping", "Timeout" => 5, "UnhealthyThreshold" =>2}]
+      action :create
+    end
+
 You can also do SSL, but it's a little funky.
 
 First, you have to [upload your cert](http://docs.amazonwebservices.com/ElasticLoadBalancing/latest/DeveloperGuide/index.html?US_SettingUpLoadBalancerHTTPSIntegrated.html).

providers/load_balancer.rb

@@ -67,6 +67,21 @@ def load_current_resource
   end
   new_resource.updated_by_last_action(true)
 
+  configure_successful = false
+  ruby_block "Configure ELB #{new_resource.lb_name}" do
+    block do
+      response = elb.configure_health_check(new_resource.lb_name, new_resource.health_check.first)
+      if response.status != 200
+        Chef::Log::fatal!("Configuring load balancer health check returned " << response.status.to_s)
+      else
+        Chef::Log::debug("Configure load balancer health check succeeded: \n" << response.body.to_s)
+        configure_successful = true
+      end
+    end
+    action :create
+  end
+  new_resource.updated_by_last_action(configure_successful)
+
   instances_to_add = new_resource.instances - current_resource.instances
   instances_to_delete = current_resource.instances - new_resource.instances
 

resources/load_balancer.rb

@@ -8,4 +8,5 @@
 attribute :listeners,             :kind_of => Array,  :default => [{"InstancePort" => 80, "Protocol" => "HTTP", "LoadBalancerPort" => 80}]
 attribute :instances,             :kind_of => Array
 attribute :search_query,          :kind_of => String
-attribute :timeout,                                   :default => 60
+attribute :timeout,                                   :default => 60
+attribute :health_check,          :kind_of => Array, :default => [{"HealthyThreshold" => 10, "Interval" => 30, "Target" => "HTTP:80/", "Timeout" => 5, "UnhealthyThreshold" => 2}]