def create_stack(params)
      if stack_exists?(@stack_name)
        puts "Cannot create '#{@stack_name}' stack because it already exists."
        return
      end

      template_body = IO.read(@template_path)
      message = "Creating #{@stack_name} stack."
      if @options[:noop]
        message = "NOOP #{message}"
      else
        cfn.create_stack(
          stack_name: @stack_name,
          template_body: template_body,
          parameters: params#,
          # capabilities: ["CAPABILITY_IAM"]
        )
      end
      puts message unless @options[:mute]
    end
def create_stack(params)
      if stack_exists?(@stack_name)
        puts "Cannot create '#{@stack_name}' stack because it already exists."
        return
      end

      template_body = IO.read(@template_path)
      message = "Creating #{@stack_name} stack."
      if @options[:noop]
        message = "NOOP #{message}"
      else
        cfn.create_stack(
          stack_name: @stack_name,
          template_body: template_body,
          parameters: params#,
          # capabilities: ["CAPABILITY_IAM"]
        )
      end
      puts message unless @options[:mute]
    end
aws cloudformation create-stack --stack-name prod-hi-123456789 --parameters file://output/params/prod-hi-123456789.json --template-body file://output/prod-hi.json