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Integrate with MinIO

Support level: Community

What is MinIO​

MinIO is an Amazon S3 compatible object storage suite capable of handling structured and unstructured data including log files, artifacts, backups, container images, photos and videos. The current maximum supported object size is 5TB.

-- https://www.min.io/

Preparation​

The following placeholders are used in this guide:

  • minio.company is the FQDN of the MinIO installation.
  • authentik.company is the FQDN of the authentik installation.
MinIO product changes

MinIO is in maintenance mode since December 2025. MinIO AIStor Free is its closed-source commercially licensed replacement; a full-featured, single-node deployment which supports SSO.

info

This documentation lists only the settings that you need to change from their default values. Be aware that any changes other than those explicitly mentioned in this guide could cause issues accessing your application.

authentik configuration​

To support the integration of MinIO with authentik, you need to create an application/provider pair in authentik.

Create an application and provider in authentik​

  1. Log in to authentik as an administrator and open the authentik Admin interface.

  2. Navigate to Applications > Applications and click Create with Provider to create an application and provider pair. (Alternatively you can first create a provider separately, then create the application and connect it with the provider.)

    • Application: provide a descriptive name, an optional group for the type of application, the policy engine mode, and optional UI settings. Note the Slug value because it will be required later.
    • Choose a Provider type: select OAuth2/OpenID Connect as the provider type.
    • Configure the Provider: provide a name (or accept the auto-provided name), the authorization flow to use for this provider, and the following required configurations.
      • Note the Client ID and Client Secret values because they will be required later.
      • Set a Strict redirect URI to https://minio.company/oauth_callback.
      • Select any available signing key.
    • Configure Bindings (optional): you can create a binding (policy, group, or user) to manage the listing and access to applications on a user's My applications page.

  3. Click Submit to save the new application and provider.

MinIO configuration​

You can set up OpenID in three different ways: via environment variables, the web interface, or the command line.

MinIO OpenID Connect configuration can be configured using environment variables.

Add the following variables to your environment file:

MINIO_IDENTITY_OPENID_CONFIG_URL="https://authentik.company/application/o/<application_slug>/.well-known/openid-configuration"
MINIO_IDENTITY_OPENID_CLIENT_ID="<client id>"
MINIO_IDENTITY_OPENID_CLIENT_SECRET="<client secret>"
MINIO_IDENTITY_OPENID_DISPLAY_NAME="authentik"
MINIO_IDENTITY_OPENID_CLAIM_NAME="policy"
MINIO_IDENTITY_OPENID_SCOPES="openid,profile,email"

Redeploy MinIO AIStor for the changes to take effect.

Resources​