Module: PoolParty::Ec2Wrapper::InstanceMethods

Defined in:
lib/modules/ec2_wrapper.rb

Instance Method Summary collapse

Instance Method Details

#associate_address_with(ip, instance_id) ⇒ Object 



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# File 'lib/modules/ec2_wrapper.rb', line 30

def associate_address_with(ip, instance_id)
  ec2.associate_address(:instance_id => instance_id, :public_ip => ip)
end

#describe_instance(id) ⇒ Object

Instance description



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# File 'lib/modules/ec2_wrapper.rb', line 34

def describe_instance(id)
  EC2ResponseObject.get_hash_from_response(ec2.describe_instances(:instance_id => id))
end

#ec2 ⇒ Object

EC2 connections



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# File 'lib/modules/ec2_wrapper.rb', line 46

def ec2
  @ec2 ||= EC2::Base.new(:access_key_id => Application.access_key, :secret_access_key => Application.secret_access_key)
end

#get_instance_by_id(id) ⇒ Object

Get instance by id



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# File 'lib/modules/ec2_wrapper.rb', line 38

def get_instance_by_id(id)
  get_instances_description.select {|a| a.instance_id == id}[0] rescue nil
end

#get_instances_description ⇒ Object

Get the s3 description for the response in a hash format



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# File 'lib/modules/ec2_wrapper.rb', line 42

def get_instances_description
  @cached_descriptions ||= EC2ResponseObject.get_descriptions(ec2.describe_instances)
end

#launch_new_instance! ⇒ Object

Run a new instance, with the user_data and the ami described in the config



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# File 'lib/modules/ec2_wrapper.rb', line 11

def launch_new_instance!
  instance = ec2.run_instances(
    :image_id => Application.ami, 
    :user_data => "#{Application.launching_user_data}",
    :minCount => 1,
    :maxCount => 1,
    :key_name => "#{Application.keypair}",
    :availability_zone => nil,
    :size => "#{Application.size}")
  begin
    item = instance#.instancesSet.item
    EC2ResponseObject.get_hash_from_response(item)
  rescue Exception => e          
  end
end

#reset! ⇒ Object 



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# File 'lib/modules/ec2_wrapper.rb', line 49

def reset!
  @cached_descriptions = nil
end

#terminate_instance!(instance_id) ⇒ Object

Shutdown the instance by instance_id



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# File 'lib/modules/ec2_wrapper.rb', line 27

def terminate_instance!(instance_id)
  ec2.terminate_instances(:instance_id => instance_id)
end