Class: Wakame::Actions::LaunchVM

Inherits:
Wakame::Action show all
Defined in:
lib/wakame/actions/launch_vm.rb

Constant Summary collapse

USER_DATA_TMPL = 
<<__END__
node=agent
amqp_server=%s
__END__

Constants included from AttributeHelper

AttributeHelper::CLASS_TYPE_KEY, AttributeHelper::CONVERT_CLASSES, AttributeHelper::PRIMITIVE_CLASSES

Instance Attribute Summary

Attributes inherited from Wakame::Action

#action_manager

Instance Method Summary collapse

Methods inherited from Wakame::Action

#acquire_lock, #actor_request, #agent_monitor, #all_subactions_complete?, #flush_subactions, #master, #notes, #notify, #on_canceled, #on_failed, #service_cluster, #status=, #subactions, #sync_actor_request, #trigger_action, #walk_subactions

Methods included from ThreadImmutable

#bind_thread, included, #target_thread, #target_thread?, #thread_check

Methods included from AttributeHelper

#dump_attrs, #retrieve_attr_attribute

Constructor Details

#initialize(notes_key, vm_spec) ⇒ LaunchVM

Returns a new instance of LaunchVM.



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# File 'lib/wakame/actions/launch_vm.rb', line 4

def initialize(notes_key, vm_spec)
  @notes_key = notes_key
  @vm_spec = vm_spec
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/wakame/actions/launch_vm.rb', line 14

def run
  require 'right_aws'
  ec2 = RightAws::Ec2.new(Wakame.config.aws_access_key, Wakame.config.aws_secret_key, {:cache=>false})

  ref_attr = @vm_spec.merge(cluster.template_vm_attr)

  user_data = sprintf(USER_DATA_TMPL, cluster.advertised_amqp_servers)
  Wakame.log.debug("#{self.class}: Lauching VM: #{ref_attr.inspect}\nuser_data: #{user_data}")
  res = ec2.run_instances(ref_attr[:image_id], 1, 1,
                          ref_attr[:security_groups],
                          ref_attr[:key_name],
                          user_data,
                          'public', # addressing_type
                          ref_attr[:instance_type], # instance_type
                          nil, # kernel_id
                          nil, # ramdisk_id
                          ref_attr[:availability_zone], # availability_zone
                          nil # block_device_mappings
                          )[0]
  inst_id = res[:aws_instance_id]

  ConditionalWait.wait { | cond |
    cond.wait_event(Event::AgentMonitored) { |event|
      event.agent.vm_attr[:aws_instance_id] == inst_id
    }
    
    cond.poll(5, 360) {
      begin
        d = ec2.describe_instances([inst_id])[0]
        Wakame.log.debug("#{self.class}: Polling describe_instances(#{inst_id}): #{d[:aws_state]} ")
        d[:aws_state] == "running"
      rescue RightAws::AwsError => e
        if e.include?(%r'InvalidInstanceID.NotFound')
          # describe_instances() sometime fails due to this error when it is called just after sending run_instances().
          # This is the timing issue in AWS so that continues the polling check.
          Wakame.log.warn("Polling to describe_instances() got InvalidInstanceID.NotFound error with #{inst_id}. Retry again.")
          next
        else
          raise e
        end
      end
    }
  }

  notes[@notes_key] = inst_id

end