https://sachinsmc.me/blog/tags/aws/ Recent content in Aws on Sachin Chavan Hugo en-us Sat, 20 Jun 2026 12:00:00 +0400 https://sachinsmc.me/blog/posts/multi-tenant-rag-authorization-boundary/ Sat, 20 Jun 2026 12:00:00 +0400 https://sachinsmc.me/blog/posts/multi-tenant-rag-authorization-boundary/ In a single-tenant RAG you trust the index. In a multi-tenant one, a shared index plus one missing filter leaks Tenant A’s documents into Tenant B’s answer. Here is the unified mental model that ties the metadata-filtering mechanics and the authorization layer together, treat the tenant filter as a policy decision, not app code, with the same architecture mapped across AWS, Azure, and Google Cloud (diagrams and Python included).