| title |
|---|
DNS 与服务发现 |
$ kubectl get svc kube-dns -n kube-system
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
kube-dns ClusterIP 10.96.0.10 <none> 53/UDP,53/TCP,9153/TCP 12d
$ kubectl get svc nginx-service
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
nginx-service ClusterIP 10.108.9.49 <none> 80/TCP 3h
$ dig nginx-service.default.svc.cluster.local @10.96.0.10 +short
10.108.9.49$ cat /etc/resolv.conf
nameserver 10.96.0.10
search default.svc.cluster.local svc.cluster.local cluster.local
options ndots:5
$ nslookup nginx-service
nslookup: can't resolve '(null)': Name does not resolve
Name: nginx-service
Address 1: 10.108.9.49 nginx-service.default.svc.cluster.local