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Requirements

  • Azure account
  • API_URL of the Hoop gateway instance

Contact the administrator of the hoop gateway instance to retrieve the API_URL address.

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Identity Provider Configuration

1

Create an Application

Login with your account at https://portal.azure.com/

  • Go to Microsoft Entra ID > App Registration.
  • Pick a name, and select the Supported account types as you see fit
  • Register the application with {API_URL}/api/callback as the redirect URI.

We recommend using the option single tenant option for Supported account types. This will allow selecting exactly what groups to propagate to this application. This option is also required to propagate cloud-only groups as names (see more details below).

Ensure default delegated permissions: User.Read for sign in and read user profiles and email to view user’s email address.

These attributes are typically created by default. If errors occur, ensure these options are set correctly.

2

Create the Client Credentials

  • Go to App Registration >
  • In the overview page, copy the Application (client) ID value. This is the Client ID.
  • Go to Certificate & Secrets > Client Secrets > New Client Secret
  • Copy the Secret Value. This is the Client Secret
3

Collect Issuer and Custom Scopes Information

The Issuer URL

The Custom Scopes

  • Use the Client ID to compose the Custom Scopes value
  • {CLIENT_ID}/.default

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Configuring Groups Claims

With Microsoft Entra ID it’s possible to configure a claim to propagate as groups to Hoop. This configuration will ensure to sync the groups when a user authenticates on Hoop.

  • Go to Microsoft Entra ID > App Registration > > Token Configuration
  • Click on Add groups claim
  • Client in edit on Attributes & Claims > Add groups claim
  • Select Groups assigned to the application

By default, groups are propagate with their object ids. It may be cumbersome to manage groups as UUIDs on Hoop. Perform the steps below to propagate them with their display name instead.

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Propagating Groups as Names

It’s possible to propagate groups with their display names for cloud groups.

  • Click on Manifest
  • Edit the item groups under optionalClaims.idToken and optionalClaims.accessToken attributes and add the name cloud_displayname
  • Make sure that groupMembershipClaims is set to ApplicationGroup
(...)
  "groupMembershipClaims": "ApplicationGroup",
  (...)
  "optionalClaims": {
    "idToken": [
      {
        "name": "groups",
        "source": null,
        "essential": false,
        "additionalProperties": [
          "cloud_displayname"
        ]
      }
    ],
    "accessToken": [
      {
        "name": "groups",
        "source": null,
        "essential": false,
        "additionalProperties": [
          "cloud_displayname"
        ]
      }
    ],
    (...)
  • Click on Save

This option only works when group groupMembershipClaims is set to ApplicationGroup. and after assigning the groups to this application.

Be aware that names are not unique and this may cause conflict when propagating groups. Object IDs are a more safer approach to avoid such problems.

For other kind of groups it’s possible to append additional properties as sam_account_name, dns_domain_and_sam_account_name or netbios_domain_and_sam_account_name.

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Assign Groups to Application

  • Go to Enterprise Application > > User and Groups > Add user/group
  • Select the desired groups and click on Select
  • Click on Assign
This option requires an AD subscription that allows assigning groups to application.

References:

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Machine to Machine Access (M2M)

Available on version 1.17.14+

It is possible to access hoop by issuing access tokens using the Oauth2 Client Credentials Flow. The gateway validates and authenticates any access token generated by the app registered in Azure, provided that a service account is active on hoop. The only requirement is that the service account has the same Object ID as the application, which serves as its main identifier.

Authentication only occurs when a token is issued by the identity provider. The service account resource simply maps the subject to identify who is accessing the API.

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Creating a Service Account

hoop admin create serviceaccount <azure-app-object-id> \
  --name "My Service Account" \
  --groups admin

To obtain the Object ID of the application navigate to: Azure Portal > Microsoft Entra ID > Enterprise Applications

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Creating an Access Token

  1. Go to App Registrations > Certificate & Secrets > New Client Secret

Copy the secret value and use in the command below as the attribute for <APP_CLIENT_SECRET>

  1. Generate an access token
curl -XPOST -H "Content-Type: application/x-www-form-urlencoded" \
	-d client_id=<APP_CLIENT_ID> \
	-d scope=<APP_CLIENT_ID>/.default \
	-d client_secret=<APP_CLIENT_SECRET> \
	-d grant_type=client_credentials \
	https://login.microsoftonline.com/<TENANT_ID>/oauth2/v2.0/token
  • APP_CLIENT_ID: the client id of the application
  • APP_CLIENT_SECRET: the client secret generated in the step 1
  • TENANT_ID: the tenant id of you app instance

For more information, see this guide.

Access the API

export HOOP_TOKEN=eyJ0eXAiOiJKV1QiLCJhb...5Z3Be-kkXkAnAA-zIweYuqEUDA
hoop admin get userinfo

In case of receiving access denied (401), make sure that the subject of the access token matches the subject provided when creating the service account (usually matches the object id of the application)

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