Erlcloud.ec2.ex

defmodule ErlEC2 do
	# elixir aws ec2 run instances ami
	# source: http://donpflaster.net/2016/02/09/controlling-amazon-ec2-instances-with-elixir/
	require Record
	
	Record.defrecord :ec2_instance_spec, Record.extract(:ec2_instance_spec, from: "deps/erlcloud/include/erlcloud_ec2.hrl")
	
	@image_id 'ami-xxxxxxxx'
	
	def start_instances(aws_ids) do
    	:erlcloud_ec2.start_instances(Enum.map(aws_ids, fn x -> to_char_list x end))
    end
    
    def stop_instances(aws_ids) do
    	:erlcloud_ec2.stop_instances(Enum.map(aws_ids, fn x -> to_char_list x end))
    end

    def create_new_instances(number) do
     spec = ec2_instance_spec(image_id: @image_id,
                             instance_type: 't2.micro',
                             key_name: 'keypair',
                             group_set: ['SecGroup'],
                             min_count: number,
                             max_count: number)
      :erlcloud_ec2.run_instances(spec,Configobject.awsconf)
    end

   def terminate_instances(aws_ids) do
   	:erlcloud_ec2.terminate_instances(Enum.map(aws_ids, fn x -> to_char_list x end))
   end
end