Step 3: Configure Identity Conversion Rules

Prerequisites

• The enterprise administrator has created an account in Huawei Cloud, and has created user groups and assigned permissions to the group in IAM. For details, see Creating a User Group and Assigning Permissions.
• An IdP has been created in Huawei Cloud. For details, see Step 1: Create an IdP Entity.

Procedure

If you configure identity conversion rules by clicking Create Rule, IAM will convert your specified parameters to the JSON format. Alternatively, you can click Edit Rule to directly configure rules in JSON format. For details, see Syntax of Identity Conversion Rules.

• Creating Rules
  1. Log in to the IAM console as the administrator. In the navigation pane, choose Identity Providers.
  2. In the IdP list, click Modify in the row containing the IdP.
  3. In the Identity Conversion Rules area, click Create Rule. Then, configure the rules in the Create Rule dialog box.
     Figure 1 Creating rules
     
     Figure 2 Creating rules
     

     Table 1 Parameter description

     Parameter	Description	Remarks
     Username	Username of federated users in Huawei Cloud.	To distinguish federated users from Huawei Cloud users, it is recommended that you set the username to FederationUser-IdP_XXX. IdP indicates an IdP name, for example, AD FS or Shibboleth. XXX indicates a custom name. NOTICE: The username of each federated user must be unique in the same IdP. Federated users with the same usernames in the same IdP will be mapped to the same IAM user in Huawei Cloud. The username can only contain letters, digits, spaces, hyphens (-), underscores (_), and periods (.). It cannot start with a digit and cannot contain the following special characters: ", \", \\, \n, \r
     User Groups	User groups which the federated users belong to in Huawei Cloud.	The federated users will inherit permissions from the groups to which they belong. You can select a user group that has already been created.
     Rule Conditions	Conditions that a federated user must meet to obtain permissions from the selected user groups.	Federated users who do not meet these conditions cannot access Huawei Cloud. You can create a maximum of 10 conditions for an identity conversion rule. The Attribute and Value parameters are used for the enterprise IdP to transfer user information to Huawei Cloud through SAML assertions. The Condition parameter can be set to empty, any_one_of, or not_any_of. For details about these parameters, see Syntax of Identity Conversion Rules. NOTE: An identity conversion rule can have multiple conditions. It takes effect only if all of the conditions are met. An IdP can have multiple identity conversion rules. If a federated user does not meet any of the conditions, the user will be denied to access Huawei Cloud.

     For example, set an identity conversion rule for administrators in the enterprise management system.

     • Username: FederationUser-IdP_admin
     • User group: admin
     • Rule condition: _NAMEID_ (attribute), any_one_of (condition), and 000000001 (value).

       Only the user with ID 000000001 is mapped to IAM user FederationUser-IdP_admin and inherits permissions from the admin user group.

  4. In the Create Rule dialog box, click OK.
  5. On the Modify Identity Provider page, click OK.
• Editing Rules
  1. Log in to the IAM console as the administrator. In the navigation pane, choose Identity Providers.
  2. In the IdP list, click Modify in the row containing the IdP.
     Figure 3 Modifying an IdP
     
  3. In the Identity Conversion Rules area, click Edit Rule.
     Figure 4 Editing identity conversion rules
     
  4. Edit the identity conversion rules in JSON format. For details, see Syntax of Identity Conversion Rules.
  5. Click Validate to verify the syntax of the rules.
  6. If the rule is correct, click OK in the Edit Rule dialog box, and click OK on the Modify Identity Provider page.

     If a message indicating that the JSON file is incomplete is displayed, modify the statements or click Cancel to cancel the modifications.

Related Operations

Viewing identity conversion rules: Click View Rule on the Modify Identity Provider page. The identity conversion rules are displayed in JSON format. For details about the JSON format, see Syntax of Identity Conversion Rules.