terraform/website/source/docs/configuration/outputs.html.md

---
layout: "docs"
page_title: "Configuring Outputs"
sidebar_current: "docs-config-outputs"
---

# Output Configuration

Outputs define values that will be highlighted to the user
when Terraform applies, and can be queried easily using the
[output command](/docs/commands/output.html). Output usage
is covered in more detail in the
[getting started guide](/intro/getting-started/outputs.html).
This page covers configuration syntax for outputs.

Terraform knows a lot about the infrastructure it manages.
Most resources have a handful or even a dozen or more attributes
associated with it. Outputs are a way to easily extract
information.

This page assumes you're familiar with the
[configuration syntax](/docs/configuration/syntax.html)
already.

## Example

An output configuration looks like the following:

```
output "address" {
	value = "${aws_instance.web.public_dns}"
}
```

## Description

The `output` block configures a single output variable. Multiple
output variables can be configured with multiple output blocks.
The `NAME` given to the output block is the name used to reference
the output variable.

Within the block (the `{ }`) is configuration for the output.
These are the parameters that can be set:

  * `value` (required, string) - The value of the output. This must
    be a string. This usually includes an interpolation since outputs
    that are static aren't usually useful.

## Syntax

The full syntax is:

```
output NAME {
	value = VALUE
}
```