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Role-Based Access Control (RBAC)

4 posts · Sep 2022 – Mar 2026

What this trail covers

Milvus's Role-Based Access Control (RBAC) system provides granular control over data access. This post details strategies for implementing multi-tenancy in RAG systems using Milvus, focusing on database-level, collection-level, and partition-level approaches. It highlights database-level multi-tenancy as often suitable for enterprise RAG knowledge bases serving distinct business units, offering strong logical isolation. For enhanced security, it introduces physical resource isolation by mapping logical components (databases, collections) to physical resources (Resource Groups, Query Nodes) to guarantee performance and prevent interference between tenants.

All Milvus trails
  1. Milvus Access Control Guide: How to Configure RBAC for ProductionThis post details the implementation and configuration of Milvus's Role-Based Access Control (RBAC) system. It explains the core concepts of Resources, Privileges, Roles, and Users within Milvus's RBAC model. The guide provides step-by-step instructions for enabling authentication (via Docker Compose, Helm Charts, and Milvus Operator), creating users, roles, and custom privilege groups, and granting/revoking privileges scoped to specific resources (instance, database, collection). A comprehensive example demonstrates how to design and implement RBAC for a production RAG system by creating dedicated roles and assigning them to users for platform admin, ingestion, and search services, ensuring least privilege access.
  2. Milvus RBAC Explained: Secure Your Vector Database with Role-Based Access ControlThis post elaborates on Milvus's Role-Based Access Control (RBAC) system, detailing its core components (Resource, Privilege, Privilege Group, Role, User) and the hierarchical relationship between them. It explains the authorization flow within Milvus, covering authentication, role assignment, and privilege verification. The post provides practical guidance on configuring RBAC, including enabling authorization in Docker Compose and Helm charts, initializing the root user, and performing core operations such as creating users, roles, privilege groups, granting/revoking privileges and roles, and inspecting access. A specific example demonstrates how to design access control for a RAG system by defining roles and privileges for different actors like administrators, ingestion services, and search services.
  3. Designing Multi-Tenancy RAG with Milvus: Best Practices for Scalable Enterprise Knowledge BasesThis post details strategies for implementing multi-tenancy in RAG systems using Milvus, focusing on database-level, collection-level, and partition-level approaches. It highlights database-level multi-tenancy as often suitable for enterprise RAG knowledge bases serving distinct business units, offering strong logical isolation. For enhanced security, it introduces physical resource isolation by mapping logical components (databases, collections) to physical resources (Resource Groups, Query Nodes) to guarantee performance and prevent interference between tenants.
  4. Milvus 2.2.10 & 2.2.11: Minor Updates for Enhanced System Stability and User ExperienceMilvus 2.2.10 introduced role-based access control (RBAC) for the FlushAll and Database APIs. Milvus 2.2.11 improved error codes for the minio chunk manager, utilized a singleton coroutine pool, reduced RocksMq disk usage with zstd compression, fixed QueryNode panics, rectified read request throttling, fixed GetObject null values on MacOS, and fixed a crash caused by incorrect use of the noexcept modifier.
  5. How Does the Milvus Vector Database Ensure Data Security?This post details the implementation of user authentication and TLS connection in Milvus 2.1. User authentication is handled by the Milvus proxy, which intercepts gRPC requests and verifies credentials stored in etcd using bcrypt. The workflow for authentication and credential updates is described, along with configuration steps in `milvus.yaml` and SDK examples for connecting with credentials. TLS is enabled by configuring server and CA certificates in `milvus.yaml` and providing client certificates for SDK connections.