如何查看k8s里的网段

 

1.获取k8s中pod的网段

[root@host134 ingress-demo]# kubectl get configmap kubeadm-config -n kube-system -o yaml | grep podSubnet
      podSubnet: 10.244.0.0/16

 

2.获取svc网段

[root@host134 nfs]# kubectl -n kube-system get cm kubeadm-config -o yaml | grep serviceSubnet
      serviceSubnet: 10.1.0.0/16

 

3.node网段

[root@host134 nfs]# kubectl get nodes -o wide
NAME      STATUS   ROLES           AGE   VERSION    INTERNAL-IP     EXTERNAL-IP   OS-IMAGE                KERNEL-VERSION                CONTAINER-RUNTIME
host113   Ready    <none>          27d   v1.24.17   192.168.1.113   <none>        CentOS Linux 7 (Core)   3.10.0-957.el7.x86_64         containerd://1.6.33
host134   Ready    control-plane   27d   v1.24.17   192.168.1.134   <none>        CentOS Linux 7 (Core)   3.10.0-862.el7.x86_64         containerd://1.6.33
host135   Ready    <none>          27d   v1.24.17   192.168.1.135   <none>        CentOS Linux 7 (Core)   3.10.0-1160.24.1.el7.x86_64   containerd://1.6.33

 

4.NodePort 范围

默认:30000-32767