---
layout: docs
page_title: Auto-auth with Cloud Foundry
description: >-
  Use Cloud Foundry (CF) for auto-authentication with Vault Agent or Vault Proxy.
---

> [!IMPORTANT]  
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# Auto-auth method: Cloud Foundry (CF)

The `cf` method performs authentication against the [CF Auth
method](/vault/docs/auth/cf).

## Credentials

The Vault agent will use the `CF_INSTANCE_CERT` and `CF_INSTANCE_KEY` env variables to
construct a valid login call for CF.

## Configuration

- `role` `(string: required)` - The role to authenticate against on Vault.