> For the complete documentation index, see [llms.txt](https://docs.console.zenlayer.com/welcome/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.console.zenlayer.com/welcome/cn/virtual-machine/overview/image.md).

# 镜像

镜像提供了启动虚拟机实例所需的所有信息。

## 镜像类型

### 默认镜像

提供了 Ubuntu、CentOS、Windows 和 Debian 操作系统的默认镜像。

### 自定义镜像

自定义镜像是从现有实例创建的。创建自定义镜像后，可以使用该镜像作为系统盘，快速创建与自定义镜像配置相同的虚拟机实例。不再需要时，也可以删除自定义镜像。

## **镜像限制**

每个地域最多可以创建 5 个镜像。


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# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.console.zenlayer.com/welcome/cn/virtual-machine/overview/image.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.