KWOK (Kubernetes WithOut Kubelet) is a tool for simulating the lifecycle of fake nodes and pods in order to test the control plane of a Kubernetes cluster. It is difficult to stress test custom Kubernetes controllers and operators without a significantly large cluster. However, with KWOK you can easily set up a cluster with thousands of nodes on your laptop without it consuming a significant amount of CPU or memory. This simulation enables different configurations of node types and pods to test various scenarios and edge cases. If you need a real cluster to test your operators and custom resource definitions (CRDs), we recommend kind or k3s; but if you only need to simulate a large number of fake nodes, then we encourage you to assess KWOK.
