Creating a Landlord for Multi-tenant Kubernetes Using Flux, Gatekeeper, Helm, and Friends

Explore the creation of a multi-tenant Kubernetes environment using Flux, Gatekeeper, Helm, and other tools in this conference talk. Learn how to build a "Common Application Platform" that provides isolated namespaces for each tenant, leveraging Flux for manifest deployment and Gatekeeper with Karpenter for proper workload isolation and policy enforcement. Discover the concept of "the landlord," a simple Helm chart for tenant configuration, and gain insights into implementing policies, mutations, and node pools. Witness live demonstrations and potential troubleshooting scenarios to help you build your own robust multi-tenant platform.

Introduction
Session Outline
The Common Application Platform
Separation of Concerns
What Could Possibly Go Wrong?
The Tenancy Spectrum
The Goals of the Landlord
The Manifest Repo
Deline Parameterized GK Policies
Defining Node Pools