1. Proposed title of this feature request

Allow fine-grained rbac for Loki

2. What is the nature and description of the request?

Allow fine-grained rbac for Loki so that users with admin role for a particular namespace can access network flow and topology of that particular namespace and cannot access other namespace network flow or the topology.

3. Why does the customer need this? (List the business requirements here)

cu wants to achieve effective isolation of flows per namespace in the Developer perspective

4. List any affected packages or components.