class AwsEc2Instance

def id
  return @instance_id if defined?(@instance_id)
  catch_aws_errors do
    if @opts.is_a?(Hash)
      first = @ec2_resource.instances(
        {
          filters: [{
            name: 'tag:Name',
            values: [@opts[:name]],
          }],
        },
      ).first
      # catch case where the instance is not known
      @instance_id = first.id unless first.nil?
    else
      @instance_id = @opts
    end
  end
end