k8s 节点无法加入集群：”container runtime is not running”

通过 kubeadm join 命令将 node 加入集群时报下面的错误，请问如何解决？container runtime 用的是 containerd

[preflight] Running pre-flight checks
error execution phase preflight: [preflight] Some fatal errors occurred:
[ERROR CRI]: container runtime is not running: output: time="2022-08-21T16:29:55+08:00" level=fatal msg="getting status of runtime: rpc error: code = Unimplemented desc = unknown service runtime.v1alpha2.RuntimeService"
, error: exit status 1

回答

是 /etc/containerd/config.toml 中 registry.mirrors 配置冲突引起的

保留 config_path 配置

config_path = "/etc/containerd/certs.d"

删除下面的配置，问题就解决了

[plugins."io.containerd.grpc.v1.cri".registry.mirrors."docker.io"]
  endpoint = ["https://xxx.mirror.aliyuncs.com"]
[plugins."io.containerd.grpc.v1.cri".registry.mirrors."k8s.gcr.io"]
  endpoint = ["registry.aliyuncs.com/google_containers"]