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Yandex Cloud Organization

Authentication using Active Directory

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If you have an identity federation, you can use Active Directory Federation Services (ADFS) to authenticate in the cloud.

To set up authentication:

  1. Create a federation in your organization.
  2. Add certificates to the federation.
  3. Get a console login link.
  4. Configure authentication on the AD FS server.
  5. Add users to your organization.
  6. Test the authentication process.

Before you start

To use the instructions in this section, you need:​

  1. A working ADFS farm. If you didn't configure ADFS on your server, install and configure it now. To deploy ADFS, you also need to install and configure Active Directory Domain Services (AD DS).

    If you don't have a Windows machine to deploy an ADFS server, you can create a VM in Yandex.Cloud.

    Tip

    We recommend that you include more than one server in the farm to ensure more reliable authentication.

  2. A valid certificate that is used for signing in the ADFS service. If you don't have a valid SSL certificate, get one.

    The subject name in the certificate must contain the FQDN of the Identity Provider (IdP) server, for example, fs.contoso.com, to prevent the browser from blocking the authentication page.

Create a federation in your organization

To create a federation:

  1. Go to Yandex Cloud Organization.
  2. In the left panel, select the Federations icon-federation section.
  3. Click Create federation.
  4. Enter a name for the federation. The name must be unique within the folder.
  5. Add a description if necessary.
  6. In the Cookie lifetime field, specify the period of time during which the browser won't ask the user to re-authenticate.
  7. Enter the link in http://<ADFS>/adfs/services/trust format in the IdP Issuer field, where <ADFS> is the FQDN of your ADFS server.
  8. In the SSO method field, choose POST.
  9. Use the Link to the IdP login page field to specify a link in the following format: https://<ADFS>/adfs/ls/, where <ADFS> is your ADFS server's FQDN.
  10. Enable Automatically create users to add authenticated users to your organization automatically. If you don't enable this option, you will need to add manually your federated users.

If you don't have the Yandex.Cloud command line interface yet, install and initialize it.

The folder specified in the CLI profile is used by default. You can specify a different folder using the --folder-name or --folder-id parameter.

  1. See the description of the create federation command:

    yc organization-manager federation saml create --help

  2. Create a federation:

    yc organization-manager federation saml create --name my-federation \
  --auto-create-account-on-login \
  --cookie-max-age 12h \
  --issuer "http://example.com/adfs/services/trust" \
  --sso-binding POST \
  --sso-url "https://example.com/adfs/ls/"

    Where:

    • name: Federation name. The name must be unique within the folder.

    • auto-create-account-on-login: Flag for automatically creating new users in the cloud after authenticating on the IdP server. This option simplifies user setup but users created this way are only assigned the resource-manager.clouds.member role by default and they are not able to do anything with cloud resources. Exceptions are the resources that the allUsers or allAuthenticatedUsers system group roles are assigned to.

      If this option is disabled, users who aren't added to the cloud can't log in to the management console, even if they authenticate with your server. This enables you to manage a white list of users allowed to use Yandex.Cloud resources.

    • cookie-max-age: Time before the browser asks the user to re-authenticate.

    • issuer: IdP server ID to be used for authentication.

      Enter the link in http://<ADFS>/adfs/services/trust format, where <ADFS> is the FQDN of your ADFS server.

    • sso-url: URL of the page that the browser redirects the user to for authentication.

      Enter a link in the following format: https://<ADFS>/adfs/ls/, where <ADFS> is your AD FS server's FQDN.

    • sso-binding: Specify the Single Sign-on binding type. Most Identity Providers support the POST binding type.

  1. Get the ID of the folder to create your federation in.

  2. Create a file with the request body (for example, body.json):

    {
  "folderId": "<folder ID>",
  "name": "my-federation",
  "autocreateUsers": true,
  "cookieMaxAge":"43200s",
  "issuer": "http://example.com/adfs/services/trust",
  "ssoUrl": "https://example.com/adfs/ls/",
  "ssoBinding": "POST"
}

    Where:

    • folderId: ID of the folder.

    • name: Federation name. The name must be unique within the folder.

    • autocreateUsers: Flag for automatically creating new users in the cloud after authenticating on the IdP server. This option simplifies user setup but users created this way are only assigned the resource-manager.clouds.member role by default and they are not able to do anything with cloud resources. Exceptions are the resources that the allUsers or allAuthenticatedUsers system group roles are assigned to.

      If this option is disabled, users who aren't added to the cloud can't log in to the management console, even if they authenticate with your server. This enables you to manage a white list of users allowed to useYandex.Cloud resources.

    • cookieMaxAge: Time before the browser asks the user to re-authenticate.

    • issuer: IdP server ID to be used for authentication.

      Enter the link in http://<ADFS>/adfs/services/trust format, where <ADFS> is the FQDN of your ADFS server.

    • ssoUrl: URL of the page that the browser redirects the user to for authentication.

      Enter a link in the following format: https://<ADFS>/adfs/ls/, where <ADFS> is your AD FS server's FQDN.

    • ssoBinding: Specify the Single Sign-on binding type. Most Identity Providers support the POST binding type.

  3. Create a federation using the create method:

    $ curl -X POST \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer <IAM token>" \
  -d '@body.json' \
  https://iam.api.cloud.yandex.net/iam/v1/saml/federations
{
 "done": true,
 "metadata": {
  "@type": "type.googleapis.com/yandex.cloud.iam.v1.saml.CreateFederationMetadata",
  "federationId": "ajeobmje4dgj0belagb9"
 },
 ...

    The federationId property of the response contains the federation ID to save. You'll need this ID in the next steps.

Specify certificates for the federation

When the identity provider (IdP) informs Yandex Cloud Organization that a user has been authenticated, they sign the message with their certificate. To enable Organization to verify this certificate, add it to the created federation.

When the Identity Provider (IdP) informs Yandex.Cloud that a user passed authentication, they sign the message with their certificate. To enable Yandex.Cloud to verify this certificate, add it to the federation in IAM.

Tip

To ensure that authentication isn't interrupted when the certificate expires, we recommend adding several certificates to the federation: the current one and the ones that will be used after. If a certificate is invalid, Yandex.Cloud tries to verify the signature with a different one.

To get an ADFS certificate:

  1. Log in to your ADFS server and open Server Manager.
  2. Open the ADFS management console: Tools → ADFS Management.
  3. In the window that opens, click Services → Certificates in the tree on the left.
  4. Right-click the certificate in the Token-signing section and select View certificate.
  5. In the window that opens, go to the Details tab.
  6. Click the Copy to file button.
  7. Click Next.
  8. Select the format Base-64 encoded X. 509 (.CER) and click Next.
  9. Specify where to save the certificate and under what name, then click Next.
  10. Check the certificate export settings and click Finish.

To add a certificate to a federation:

  1. Go to Yandex Cloud Organization.
  2. In the left panel, select the Federations icon-federation section.
  3. Click the name of the federation you need to add a certificate to.
  4. At the bottom of the page, click Add certificate.
  5. Enter the certificate's name and description.
  6. Choose how to add the certificate:
    • To add a certificate as a file, click Choose a file and specify the path to it.
    • To paste the contents of a copied certificate, select the Text method and paste the contents.
  7. Click Add.

If you don't have the Yandex.Cloud command line interface yet, install and initialize it.

The folder specified in the CLI profile is used by default. You can specify a different folder using the --folder-name or --folder-id parameter.

  1. View a description of the add certificate command:

    yc organization-manager federation saml certificate create --help

  2. Add a federation certificate by specifying the certificate file path:

    yc organization-manager federation saml certificate create --federation-name my-federation \
  --name "my-certificate" \
  --certificate-file test.pem

To add the certificate, use the create method for the Certificate resource:

  1. Create a request body by specifying the contents of the certificate's data property:

    {
  "federationId": "<federation ID>",
  "name": "my-certificate",
  "data": "MII...=="
}

  2. Send the add certificate request:

    $ export IAM_TOKEN=CggaATEVAgA...
$ curl -X POST \
    -H "Content-Type: application/json" \
    -H "Authorization: Bearer ${IAM_TOKEN}" \
    -d '@body.json' \
    "https://organization-manager.api.cloud.yandex.net/organization-manager/v1/saml/certificates"

When you set up federation authentication, users can log in to the management console from a link containing the federation ID. You must specify the same link when configuring the authentication server.

Obtain and save this link:

  1. Get the federation ID:

    1. Go to Yandex Cloud Organization.
    2. In the left panel, select the Federations icon-federation section.
    3. Copy the ID of the federation you're configuring access for.

  2. Generate a link using this ID:

    https://console.cloud.yandex.com/federations/<federation ID>

Configure authentication on the ADFS server

After you obtained your management console login link, you can configure the ADFS server to notify the management console of each successful authentication session and forward the user to the specified address to log in to the management console.

The instructions in this section are written for Windows Server 2016 (different steps might be needed for other versions).

To set up authentication on the ADFS server:

  1. Create a relying party trust
  2. Configure Claims Mapping

Create a relying party trust

ADFS requires a relying party trust for each Service Provider (SP) that uses ADFS for authentication.

Create a relying party trust for the federation you created in the cloud:

  1. Log in to your ADFS server and open Server Manager.

  2. Open the ADFS management console: Tools → ADFS Management.

  3. In the list of actions, select Add Relying Party Trust.

  4. The wizard window opens. On the first page, select Claims aware and click Start.

  5. Select Enter data about the relying party manually and click Next.

  6. Enter a name, like Yandex.Cloud, and click Next.

  7. In the next step, you are asked to specify a certificate for signing tokens. This step is optional, so click Next.

  8. In the Configure URL step, select Enable support for the SAML 2.0 WebSSO protocol and specify the console login link you obtained earlier. Then click Next.

    image

  9. On the next page, enter the same console login link as an identifier and click Add. Then click Next.

  10. On the next page, you can choose who can authenticate using this federation. By default, the Permit for everyone policy is selected enabling access for all users.

    You can choose a different policy. For example, to grant access to a specific group of users, select Permit specific group and click on the word <parameter> to select the groups to allow access to. Read more about access control policies.

    image

  11. Click Next.

  12. On the Ready to Add Trust page, check the data entered and click Close.

Configure Claims Mapping

When ADFS authenticates a user, it sends an SAML message to Yandex.Cloud to confirm successful authentication. This message's NameID element should identify the user that has been authenticated. For this, you need to configure the user data to match the elements of the SAML message. Types of personal data supported by Yandex Cloud Organization are given below.

User data Comments Outgoing Claim Type
Unique user ID Required attribute. We recommend using the User Principal Name (UPN) or email address. Name Identifier
Last name Displayed in Yandex.Cloud services. Surname
Name Displayed in Yandex.Cloud services. Given Name
Full name Displayed in Yandex.Cloud services.
Example: Ivan Ivanov		 Name
Mail Used to send notifications from Yandex.Cloud services.
Example: ivanov@example.com		 E-Mail Address
Phone Used to send notifications from Yandex.Cloud services.
Example: +71234567890		 Add a new attribute identified as
http://schemas.xmlsoap.org/ws/2005/05/identity/claims/mobilephone.
See AD FS Documentation
Profile image Displayed in Yandex.Cloud services.
Images are transmitted in Base64 encoding. Example		 Add a new attribute with thumbnailPhoto as ID.
See AD FS Documentation

Warning

The NameID must be unique for every federation user. We recommend specifying the User Principal Name (UPN) or email address as the ID.

To configure mapping of user data to SAML message elements:

  1. In the ADFS management console under Relying Party Trusts, right-click on the relying party trust created earlier and select Edit Claim Issuance Policy.

  2. In the window that opens, click Add Rule.

  3. Select Send LDAP Attributes as Claims and click Next.

  4. On the next page, configure what to pass in the message fields:

    1. Use the Claim rule name field to enter a name for the rule, such as Claims mapping

    2. In the Attribute Store field, click Active Directory.

    3. Specify what the server will return as Name ID to uniquely identify the user. To do this, add a line to the Mapping of LDAP attributes list:

      Under LDAP Attribute, select User-Principal-Name or E-Mail Addresses.

      In Outgoing Claim Type, select Name ID.

    4. For a user to be able to contact Yandex.Cloud technical support from the management console, configure the server to pass the email address (E-Mail Address and the user name (Name):

      image

      You can also pass the user's first and last name separately. For this, use the Given Name and Surname types instead of Name.

  5. Click Finish, then click OK to close the Edit Claim Issuance Policy window.

Sample Base64-encoded image

The profile image is transmitted in text format using Base64 encoding.

Encoded image example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SxYDaE4YLbGJCP2FCv93z2smQZpMuBhNlRk4+Y4HWsmgEpitZPl5tcqxCLLru/5Tz/xMcI4+TVuP
tLlTz6YxXgxc2qZ4dxpfd76MPLBXc0ZFmGkgK6c2gjaOnPSAY9Xj0mk7Bh/fnPc31tJ8/k36yczQ
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gkrVS5nJPPXWQZaUd4X2RhvbclU2beyRw2VGTW+nDAKbGnog8f6paZshSYUf7qlWYUGHL9cgrIKU
wBR8Uadyyfr29MYeuT1ZVsqB9g0ovZ1yO3A1aVshcHzYsyMSimZJWpDYjqS9kikxVCxcClWZNi5s
3AtcBLCxZ5qF3ACWRw7qMoG/idBmBPoPwtGhxiW/tDcS8QpgTEgCUkwMmcmP4/1p82gMO4FbNnTL
gfdb+zQAvZ0eyheXyn6EswT2xMK23onGrGXya1pSiriuFKnTsq560+9X+KXCWoXWDd3yBeDAh/6x
IS5LP/aKPnj4GF/b81IxZ0e3SEFnwQ3KDGaG8SzjqDH83WQ8tOliefS/XYZvWNIJIFm1SK556pD2
HXiNh8ffLU6p0Nfk2qkoqsoJVR5S5Rc/XiUD6Q8T/8s27Yrzk68ql31UuGWHnvnWCM8Dc0j7+Hzf
b4R7s4wnjOHYnV+W0fiO72xTfr721PxC9IHe8s3fagasAS4BjDE8DzxnDP+47xoZn+5HsFO5/Rtd
UYGmIgo9HwAAAABJRU5ErkJggg==

Add users to your organization

If you did not enable the Automatically create users option when creating a federation, federated users must be manually added to your organization.

To do this, you need to know the Name IDs of the users that the Identity Provider Server (IdP) returns along with the successful authentication confirmation. This is usually the user's primary email address. If you don't know what the server returns as the Name ID, contact the administrator who configured authentication for your federation.

To add federation users to an organization:

  1. Log in to the organization's administrator account.
  2. Go to Yandex Cloud Organization.
  3. Go to the left panel and select Users icon-users.
  4. In the upper-right corner, click on the arrow next to the Add user button. Select Add federated users.
  5. Select the identity federation to add users from.
  6. List the Name IDs of users, separating them with line breaks.
  7. Click Add. This will give the users access to the organization.

If you don't have the Yandex.Cloud command line interface yet, install and initialize it.

The folder specified in the CLI profile is used by default. You can specify a different folder using the --folder-name or --folder-id parameter.

  1. View a description of the add user command:

    yc organization-manager federation saml add-user-accounts --help

  2. Add users by listing their Name IDs separated by a comma:

    yc organization-manager federation saml add-user-accounts --name my-federation \
  --name-ids=alice@example.com,bob@example.com,charlie@example.com

To add identity federation users to the cloud:

  1. Create a file with the request body (for example, body.json). In the request body, specify the array of Name IDs of users you want to add:

    {
  "nameIds": [
    "alice@example.com",
    "bob@example.com",
    "charlie@example.com"
  ]
}

  2. Send the request by specifying the Federation ID in the parameters:

    $ curl -X POST \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer <IAM token>" \
  -d '@body.json' \
  https://organization-manager.api.cloud.yandex.net/organization-manager/v1/saml/federations/<federation ID>:addUserAccounts

Test the authentication process

When you finish configuring authentication with Active Directory, test that it runs properly:

  1. Open the browser in guest or incognito mode to simulate being a new user.

  2. Follow the management console login link you obtained earlier. The browser forwards you to the ADFS authentication page, which by default looks as follows:

    image

  3. Enter your authentication data. By default, you must enter the UPN and password. Then click Sign in.

  4. On successful authentication, ADFS redirects you back to the management console login link and then to the management console home page. In the upper-right corner, you can see that you are logged in to the console under an Active Directory account.

What's next

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