kubernets报错The connection to the server 192.168.117.141:6443 was refused - did you specify the right

先排错，用crictl ps查看一下容器，果然报没有

[root@kmaster ~]# crictl images
WARN[0000] image connect using default endpoints: [unix:///var/run/dockershim.sock unix:///run/containerd/containerd.sock unix:///run/crio/crio.sock unix:///var/run/cri-dockerd.sock]. As the default settings are now deprecated, you should set the endpoint instead. 
E0731 09:40:43.405520    1783 remote_image.go:119] "ListImages with filter from image service failed" err="rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing dial unix /var/run/dockershim.sock: connect: no such file or directory\"" filter="&ImageFilter{Image:&ImageSpec{Image:,Annotations:map[string]string{},},}"
FATA[0000] listing images: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing dial unix /var/run/dockershim.sock: connect: no such file or directory" 
[root@kmaster ~]# crictl config runtime-endpoint unix:///var/run/cri-dockerd.sock
[root@kmaster ~]# crictl images
E0731 09:41:23.834852    1825 remote_image.go:119] "ListImages with filter from image service failed" err="rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing dial unix /var/run/cri-dockerd.sock: connect: no such file or directory\"" filter="&ImageFilter{Image:&ImageSpec{Image:,Annotations:map[string]string{},},}"
FATA[0000] listing images: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing dial unix /var/run/cri-dockerd.sock: connect: no such file or directory" 

crictl依次查找容器运行时，当查找第一个 unix:///var/run/dockershim.sock 没有找到，所以报错了，需要你手动指定当前kubernetes的容器运行时，使用什么，例如：

kubernetes 1.24+ 之后，如果dockershim已经变成了cri-docker，所以你需要执行：

crictl config runtime-endpoint unix:///var/run/cri-dockerd.sock 

如果你的容器运行时，已经换成了containerd，则换成containerd的，如：

crictl config runtime-endpoint unix:///var/run/containerd/containerd.sock

之后，在执行就好了。systemctl status docker.service在cgroup栏下面可以体现

查看自己的容器运行时，使用

另外：生成的配置在cat /etc/crictl.yaml，可以随时修改。