KubeCon + CloudNativeCon North America 2022

Kubernetes is generally considered a single-tenant container orchestrator, but as companies have been running it and realizing the benefits of the Kubernetes architecture contrasted with the nontrivial level-of-effort of managing many single tenant clusters we’ve seen a spike in use cases & projects that support the need for multi-tenant & zero-trust deployments. You can see this in the growth of “Sandboxed Runtimes” like Kata, gVisor & Firecracker. As well as tools like vCluster, Kamaji & HNC. In this talk Chris Hein & Eric Ernst will demonstrate one way hard multi-tenancy can be achieved by leveraging Cluster API Nested with VirtualCluster running inside a Kubernetes cluster with workload isolation & virtual networking being provided by the Kata runtime. Users of this architecture get the benefits of per-tenant Kubernetes control planes to use CRDs, Admission Webhooks, Cluster level RBAC, Aggregate APIServers along with workload & network segregation while reducing the overall maintenance burden. Modeled after the ICDCS paper by folks from Alibaba - https://bit.ly/3tfnWnA If you are interested in sandboxed runtimes, hard multi-tenancy, scaling Kubernetes, Cluster API or multi-cluster Kubernetes this is the talk for you.

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Running Isolated VirtualClusters With Kata & Cluster API

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