<!-- Code generated from the comments of the AlicloudImageConfig struct in builder/alicloud/ecs/image_config.go; DO NOT EDIT MANUALLY -->

-   `image_name` (string) - The name of the user-defined image, [2, 128]
    English or Chinese characters. It must begin with an uppercase/lowercase
    letter or a Chinese character, and may contain numbers, _ or -. It
    cannot begin with http:// or https://.