DNS 정보 조회하기

[root@m-k8s log]# kubectl apply -f https://k8s.io/examples/admin/dns/dnsutils.yaml pod/dnsutils created [root@m-k8s log]# kubectl get pods dnsutils NAME READY STATUS RESTARTS AGE dnsutils 0/1 ContainerCreating 0 9s [root@m-k8s log]# kubectl exec -i -t dnsutils -- nslookup kubernetes.default Server: 10.96.0.10 Address: 10.96.0.10#53 Name: kubernetes.default.svc.cluster.local Address: 10.96.0.1 [root@m-k8s log]# kubectl get service -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 3d2h [root@m-k8s log]# kubectl exec -ti dnsutils -- cat /etc/resolv.conf search default.svc.cluster.local svc.cluster.local cluster.local nameserver 10.96.0.10 options ndots:5 [root@m-k8s log]# kubectl get pods --namespace=kube-system -l k8s-app=kube-dns NAME READY STATUS RESTARTS AGE coredns-565d847f94-89zmp 1/1 Running 0 25h coredns-565d847f94-ws86r 1/1 Running 0 25h [root@m-k8s log]# kubectl logs --namespace=kube-system -l k8s-app=kube-dns .:53 [INFO] plugin/reload: Running configuration SHA512 = 591cf328cccc12bc490481273e738df59329c62c0b729d94e8b61db9961c2fa5f046dd37f1cf888b953814040d180f52594972691cd6ff41be96639138a43908 CoreDNS-1.9.3 linux/amd64, go1.18.2, 45b0a11 .:53 [INFO] plugin/reload: Running configuration SHA512 = 591cf328cccc12bc490481273e738df59329c62c0b729d94e8b61db9961c2fa5f046dd37f1cf888b953814040d180f52594972691cd6ff41be96639138a43908 CoreDNS-1.9.3 linux/amd64, go1.18.2, 45b0a11