Cloudera Docs

Configure a resource-based policy: Knox

How to add a new policy to an existing Knox service.

  1. On Service Manager > Resource Policies, select an existing Knox service.

    List of Policies displays a list of the policies defined for Knox service.

  2. Click Add New Policy.
    Create Policy displays controls for creating details for a new policy.

    Ranger > Create Knox Policy page.
  3. Complete the Create Policy page as follows:
    Table 1. Policy Details
    Field Description
    Policy Name Enter an appropriate policy name. This name cannot be duplicated across the system. This field is mandatory.
    normal/override Enables you to specify an override policy. When override is selected, the access permissions in the policy override the access permissions in existing policies. This feature can be used with Add Validity Period to create temporary access policies that override existing policies.
    Knox Topology Enter an appropriate Topology Name.
    Knox Service Enter an appropriate Service Name.
    Description (Optional) Describe the purpose of the policy.
    Audit Logging Specify whether this policy is audited. (De-select to disable auditing).
    Policy Label Specify a label for this policy. You can search reports and filter policies based on these labels.
    Add Validity Period Specify a start and end time for the policy.
    Policy Conditions (applied at the policy level) Click +, then specify an IP address range.
    Table 2. Allow Conditions

    Label

    Description

    Select Role Specify the roles to which this policy applies.

    To designate a role as an Administrator, select Delegate Admin. Administrators can edit or delete the policy, and can also create child policies based on the original policy.
    Select Group

    Specify the groups to which this policy applies.

    To designate a group as an Administrator, select Delegate Admin. Administrators can edit or delete the policy, and can also create child policies based on the original policy.

    The public group contains all users, so granting access to the public group grants access to all users.
    Select User

    Specify the users to which this policy applies.

    To designate a user as an Administrator, select Delegate Admin. Administrators can edit or delete the policy, and can also create child policies based on the original policy.
    Policy Conditions (applied at the item level) Specify an IP address range.
    Permissions Add or edit permissions: Allow
    Delegate Admin You can use Delegate Admin to assign administrator privileges to the roles, groups, or users specified in the policy. Administrators can edit or delete the policy, and can also create child policies based on the original policy.

    Since Knox does not provide a command line methodology for assigning privileges or roles to users, the User and Group Permissions portion of the Knox Create Policy form is especially important.

  4. You can use + to add additional conditions. Conditions are evaluated in the order listed in the policy. The condition at the top of the list is applied first, then the second, then the third, and so on.
  5. You can use Deny All Other Accesses to deny access to all other users, groups, and roles other than those specified in the allow conditions for the policy.
  6. Click Add.