MINIO_IDENTITY_PLUGIN_AUTH_TOKEN    (string)    authorization token for plugin hook endpoint
MINIO_IDENTITY_PLUGIN_ROLE_POLICY*  (string)    policies to apply for plugin authorized users
MINIO_IDENTITY_PLUGIN_ROLE_ID       (string)    unique ID to generate the ARN
MINIO_IDENTITY_PLUGIN_COMMENT       (sentence)  optionally add a comment to this setting
```

If provided, the auth token parameter is sent as an authorization header.