Kubernetes-与服务器本地主机:8080 was refused - did you specify the right host or port?的连接

Question

我刚刚通过kubectl安装了Ubuntu 64 (Linux)。
我遵循了在线Kubernetes指南，但是主机出现错误。第一步(安装kubectl)之后，当我检查kubectl版本时，这是消息(我尚未安装和部署minikube，因为我没有根据此问题进行连接):

root@ubuntu:~# kubectl version
Client Version: version.Info{Major:"1", Minor:"13", GitVersion:"v1.13.1", GitCommit:"eec55b9ba98609a46fee712359c7b5b365bdd920", GitTreeState:"clean", BuildDate:"2018-12-13T10:39:04Z", GoVersion:"go1.11.2", Compiler:"gc", Platform:"linux/amd64"}
The connection to the server localhost:8080 was refused - did you specify the right host or port?

有人有同样的问题吗？我该如何解决？

Answer 1

其背后的原因是kubectl version同时打印Client Version和Server Version(kubernetes版本)。当您仅安装kubectl时，它只是Kubernetes客户端。如果您安装了kubernetes集群，它将同时打印kubectl版本和kubernetes版本。
如果只想打印客户端版本，请使用以下命令:

kubectl version --client=true

该错误意味着 kubectl tried to contact the kubernetes server to get its version but couldn't connect. Are you specifying the right host or port to connect to the kubernetes server.错误背后的原因是您尚未在Mac上安装kubernetes集群。您刚刚安装了kubectl，它只是访问kubernetes集群的客户端。安装kubernetes集群后，kubectl版本的输出将如下所示:

[root@ip-10-0-1-138 centos]# kubectl version
Client Version: version.Info{Major:"1", Minor:"13", GitVersion:"v1.13.1", 
GitCommit:"eec55b9ba98609a46fee712359c7b5b365bdd920", GitTreeState:"clean", BuildDate:"2018-12-13T10:39:04Z", GoVersion:"go1.11.2", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"10", GitVersion:"v1.10.3", GitCommit:"2bba0127d85d5a46ab4b778548be28623b32d0b0", GitTreeState:"clean", BuildDate:"2018-05-21T09:05:37Z", GoVersion:"go1.9.3", Compiler:"gc", Platform:"linux/amd64"}

如果要在Mac上安装完整的kubernetes集群，请尝试 minikube在本地安装集群。