问题1：kubeadm初始化安装K8S集群失败？
问题描述：
W0601 16:17:29.317823 13912 strict.go:54] error unmarshaling configuration schema.GroupVersionKind{Group:"kubeproxy.config.k8s.io", Version:"v1alpha1", Kind:"KubeProxyConfiguration"}: error unmarshaling JSON: while decoding JSON: json: cannot unmarshal string into Go struct field KubeProxyConfiguration.featureGates of type map[string]bool
v1alpha1.KubeProxyConfiguration.FeatureGates: ReadMapCB: expect { or n, but found ", error found in #10 byte of ...|reGates":"SupportIPV|..., bigger context ...|kubeproxy.config.k8s.io/v1alpha1","featureGates":"SupportIPVSProxyMode:true","kind":"KubeProxyConfig|...
原因分析：新增的kubeadm-config.yaml配置有问题。
解决方法：修改配置即可。
问题1：kubeadm初始化安装K8S集群失败？
原因分析：端口被占用；
解决方法：卸载原安装K8S集群即可。