kubernetes - 为什么我在集群中看不到工作节点？

Question

我正在运行一个带有种类的集群 - 一个工作节点。

但是，当我这样做时，我kubectl get nodes看不到节点，而是看到“善良的控制平面”——这对我来说毫无意义，控制平面是一个节点？？

工作节点必须正在运行，因为我可以kubectl exec --stdin --tty <name of the pod> /bin/sh看到运行我的应用程序的容器内部。

这是一些奇怪的 WSL2 交互吗？或者我只是做错了什么？

标签： kuberneteskind

Answer 1

control-plane is just a name. If you just run kind create cluster, its default is to create a single-node cluster with the name control-plane. From your description, everything is working properly.

One of kind's core features is the ability to run a "multi-node" cluster, but all locally in containers. If you want to test your application's behavior if, for example, you drain its pods from a node, you can run a kind cluster with one control-plane node (running etcd, the API server, and other core Kubernetes processes) and three worker nodes; let the application start up, then kubectl drain worker-1 and watch what happens. The documentation also notes that this is useful if you're developing on Kubernetes itself and need a "multi-node" control plan to test HA support.