packer-cn/website/source/docs/commands/inspect.html.md

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The `packer inspect` command takes a template and outputs the various components a template defines. This can help you quickly learn about a template without having to dive into the JSON itself. The command will tell you things like what variables a template accepts, the builders it defines, the provisioners it defines and the order they'll run, and more.	docs	packer inspect - Commands	docs-commands-inspect

inspect Command

The packer inspect command takes a template and outputs the various components a template defines. This can help you quickly learn about a template without having to dive into the JSON itself. The command will tell you things like what variables a template accepts, the builders it defines, the provisioners it defines and the order they'll run, and more.

This command is extra useful when used with machine-readable output enabled. The command outputs the components in a way that is parseable by machines.

The command doesn't validate the actual configuration of the various components (that is what the validate command is for), but it will validate the syntax of your template by necessity.

Usage Example

Given a basic template, here is an example of what the output might look like:

$ packer inspect template.json
Variables and their defaults:

  aws_access_key =
  aws_secret_key =

Builders:

  amazon-ebs
  amazon-instance
  virtualbox-iso

Provisioners:

  shell