部署k8s需要开放的端口
可以不关闭防火墙，只需要开启这些端口就行了。
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可以不关闭防火墙，只需要开启这些端口就行了
MASTER节点
6443* Kubernetes API server
2379-2380 etcd server client API
10250 Kubelet API
10251 kube-scheduler
10252 kube-controller-manager
10255 Read-only Kubelet API (Heapster)
Worker节点
10250 Kubelet API
10255 Read-only Kubelet API (Heapster)
30000-32767 Default port range for NodePort Services. Typically, these ports would need to be exposed to external load-balancers, or other external consumers of the application itself.
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