authentik/website/integrations/services/hashicorp-vault/index.md

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Hashicorp Vault

Support level: authentik

What is Vault

Secure, store and tightly control access to tokens, passwords, certificates, encryption keys for protecting secrets and other sensitive data using a UI, CLI, or HTTP API.

-- https://vaultproject.io

:::note This is based on authentik 2022.2.1 and Vault 1.9.3. Instructions may differ between versions. This guide does not cover vault policies. See https://learn.hashicorp.com/tutorials/vault/oidc-auth?in=vault/auth-methods for a more in depth vault guide :::

Preparation

The following placeholders will be used:

• authentik.company is the FQDN of authentik.
• vault.company is the FQDN of Vault.

Step 1

In authentik, create an OAuth2/OpenID Provider (under Applications/Providers) with these settings:

:::note Only settings that have been modified from default have been listed. :::

Protocol Settings

• Name: Vault

• Signing Key: Select any available key

• Redirect URIs/Origins:

https://vault.company/ui/vault/auth/oidc/oidc/callback
https://vault.company/oidc/callback
http://localhost:8250/oidc/callback

:::note Take note of the Client ID and Client Secret, you'll need to give them to Vault in Step 3. :::

Step 2

In authentik, create an application (under Resources/Applications) which uses this provider. Optionally apply access restrictions to the application using policy bindings.

:::note Only settings that have been modified from default have been listed. :::

• Name: Vault
• Slug: vault-slug
• Provider: Vault

Step 3

Enable the oidc auth method vault auth enable oidc

Configure the oidc auth method, oidc discovery url is the OpenID Configuration Issuer in your provider

vault write auth/oidc/config \
         oidc_discovery_url="https://authentik.company/application/o/vault-slug/" \
         oidc_client_id="Client ID" \
         oidc_client_secret="Client Secret" \
         default_role="reader"

Create the reader role

vault write auth/oidc/role/reader \
      bound_audiences="Client ID" \
      allowed_redirect_uris="https://vault.company/ui/vault/auth/oidc/oidc/callback" \
      allowed_redirect_uris="https://vault.company/oidc/callback" \
      allowed_redirect_uris="http://localhost:8250/oidc/callback" \
      user_claim="sub" \
      policies="reader"

You should then be able to sign in via OIDC vault login -method=oidc role="reader"