Predefined Ranger Access Policies for Apache NiFi
You can review the predefined Ranger policies for NiFi to determine the appropriate policy to assign to a user.
The following table lists the predefined Ranger access policies for NiFi. If you create a custom policy, refer to the Resource Descriptor column in this table to enter the value in the NiFi Resource Identifier field on the New Policy page.
| Ranger Policy | Description | Resource Descriptor |
|---|---|---|
| Controller | Allows users to view and modify the controller including Reporting Tasks, Controller Services, Parameter Contexts and Nodes in the Cluster. | /controller |
| Flow | Allows users to view the NiFi UI. | /flow |
| Policies | Allows users to view the policies for all components. | /policies |
| Provenance | Allows users to submit a Provenance Search and request Event Lineage. | /provenance |
| Proxies | Allows NiFi and Knox hosts to proxy user requests. Does not apply to users or user groups. | /proxy |
| Restricted Components | Allows users to create/modify restricted components assuming other permissions are sufficient. The restricted components may indicate the specific permissions that are required. Permissions can be granted for specific restrictions or be granted regardless of restrictions. If permission is granted regardless of restrictions, the user can create/modify all restricted components. Some examples of restricted components are ExecuteScript, List/FetchHDFS, and TailFile. |
/restricted-componentsSee the NiFi Restricted Components topic for information on the sub-policies. |
| Root Group Data | Allows users and the nifi group to view and
delete data from the root group and down the hierarchy unless there is a more specific
policy on a component. |
/data/process-groups/<uuid> |
| Root Group Provenance Data | Allows users to view provenance data. | /provenance-data/process-groups/ |
| Root Process Group | Allows users to view and modify the root process group including
adding/removing processors to the canvas. This policy is inherited down the hierarchy unless there is a more specific policy on a component. |
/process-groups/<uuid> |
| Tenants | Allows users to view and modify user accounts and user groups. | /tenants |
