Discover how to effectively manage and operate a multi-tenant service mesh in production environments. Learn about the challenges of tenant isolation in configuration management, resource consumption, and security as you scale your environment and onboard different teams or applications. Explore the primitives available from service meshes like Istio to securely run a multi-tenant mesh. Gain insights into extending these concepts from a single cluster to multi-cluster environments, enabling successful application deployment across different clusters in a unified service mesh. This 30-minute conference talk by Christian Posta from Solo.io, presented at a CNCF event, provides valuable knowledge for organizations looking to leverage service meshes while maintaining scalability and security in complex, multi-tenant scenarios.