packer-cn/website/source/docs/provisioners/index.html.md

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---
layout: docs
sidebar_current: docs-provisioners
page_title: Provisioners
description: |-
Provisioners use builtin and third-party software to install and configure the
machine image after booting.
---
# Provisioners
Provisioners use builtin and third-party software to install and configure the
machine image after booting. Provisioners prepare the system for use, so common
use cases for provisioners include:
- installing packages
- patching the kernel
- creating users
- downloading application code
These are just a few examples, and the possibilities for provisioners are
endless.