The connection to the server localhost:8080 was refused - did

k3s集群，Node节点出现这个报错：The connection to the server localhost:8080 was refused - did you specify the right host or port?

解决如下：

1、在Master节点运行下面命令将/etc/rancher/k3s/k3s.yaml文件拷贝到从节点相同录下。

2、修改k3s.yaml文件中的信息：

server: https://{masterIP}:6443为master节的IP。

3、执行以下命令：

echo "export KUBECONFIG=/etc/rancher/k3s/k3s.yaml" >> ~/.bash_profile

使修改生效：

source ~/.bash_profile