vault/website/content/docs/agent-and-proxy/autoauth/methods/gcp.mdx
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Co-authored-by: Yoko Hyakuna <yoko@hashicorp.com>
2023-05-19 13:11:39 -04:00

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---
layout: docs
page_title: Vault Auto-Auth GCP Method
description: GCP Method for Vault Auto-Auth
---
# Vault Auto-Auth GCP Method
The `gcp` method performs authentication against the [GCP Auth
method](/vault/docs/auth/gcp). Both `gce` and `iam`
authentication types are supported.
## Credentials
Vault will use the GCP SDK's normal credential chain behavior. You can set a
static `credentials` value, but it is usually not needed. If running on GCE
using Application Default Credentials, you may need to specify the service
account and project since ADC does not provide metadata used to automatically
determine these.
## Configuration
- `type` `(string: required)` - The type of authentication; must be `gce` or `iam`
- `role` `(string: required)` - The role to authenticate against on Vault
- `credentials` `(string: optional)` - When using static credentials, the
contents of the JSON credentials file
- `service_account` `(string: optional)` - The service account to use, if it
cannot be automatically determined
- `jwt_exp` `(string or int: optional)` - The number of minutes a generated JWT
should be valid for when using the `iam` method; defaults to 15 minutes