aws snapshots with capistrano

aws snapshots with capistrano

require 'aws'
 
namespace :aws do
 
  task :create_snapshot do
    instances.each do |instance|
      ec2 = ec2_connect
      volume_ids = find_volume_ids_for_instance(instance)
      if volume_ids
        volume_ids.each do |volume_id|
          logger.debug("Creating snapshot for volume id #{volume_id}")
          ec2.create_snapshot( :volume_id => volume_id )
        end
      else
        logger.debug("Unable to find volume ids for #{instance}")
      end
    end
  end
 
  def find_volume_ids_for_instance(instance)
    ...
  end
 
  def config_file
    conf_file = Pathname.new "#{ENV["HOME"]}/aws.yml"
    return conf_file if conf_file.exist?
    raise "Unable to locate aws.yml file"
  end
 
  def conf
    @conf ||= YAML.load(open(config_file))
  end
 
  def ec2_connect
    AWS::EC2::Base.new(:access_key_id => conf['key_id'], :secret_access_key => conf['secret_key'])
  end
 
end