# Docker Hub Intro

StackOS Uses Docker Hub to host docker images.  You are able to use both public images and private images.

## Private Docker Hub Images

Private Docker Hub Images may be downloaded by supplying your username and password.  If you require addtiional privacy, simply create an extra user at Docker Hub only for use with StackOS.

When you configure your application on StackOS, supply the authentication information in the following area:

![](/files/9zmucsh8X4pYcMCeZVVo)


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# Agent Instructions: 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:

```
GET https://docs.stackos.io/stackos-docs/preparing-custom-images/docker-hub-intro.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.