Created
January 20, 2016 22:36
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| apiVersion: v1 | |
| kind: ReplicationController | |
| metadata: | |
| name: kube-dns-v10 | |
| namespace: kube-system | |
| labels: | |
| k8s-app: kube-dns | |
| version: v10 | |
| kubernetes.io/cluster-service: "true" | |
| spec: | |
| replicas: 1 | |
| selector: | |
| k8s-app: kube-dns | |
| version: v10 | |
| template: | |
| metadata: | |
| labels: | |
| k8s-app: kube-dns | |
| version: v10 | |
| kubernetes.io/cluster-service: "true" | |
| spec: | |
| containers: | |
| - name: etcd | |
| image: gcr.io/google_containers/etcd:2.0.9 | |
| resources: | |
| # keep request = limit to keep this container in guaranteed class | |
| limits: | |
| cpu: 100m | |
| memory: 50Mi | |
| requests: | |
| cpu: 100m | |
| memory: 50Mi | |
| command: | |
| - /usr/local/bin/etcd | |
| - -data-dir | |
| - /var/etcd/data | |
| - -listen-client-urls | |
| - http://127.0.0.1:2379,http://127.0.0.1:4001 | |
| - -advertise-client-urls | |
| - http://127.0.0.1:2379,http://127.0.0.1:4001 | |
| - -initial-cluster-token | |
| - skydns-etcd | |
| volumeMounts: | |
| - name: etcd-storage | |
| mountPath: /var/etcd/data | |
| - name: kube2sky | |
| image: gcr.io/google_containers/kube2sky:1.12 | |
| resources: | |
| # keep request = limit to keep this container in guaranteed class | |
| limits: | |
| cpu: 100m | |
| memory: 50Mi | |
| requests: | |
| cpu: 100m | |
| memory: 50Mi | |
| args: | |
| # command = "/kube2sky" | |
| - -domain=cluster.local | |
| - name: skydns | |
| image: gcr.io/google_containers/skydns:2015-10-13-8c72f8c | |
| resources: | |
| # keep request = limit to keep this container in guaranteed class | |
| limits: | |
| cpu: 100m | |
| memory: 50Mi | |
| requests: | |
| cpu: 100m | |
| memory: 50Mi | |
| args: | |
| # command = "/skydns" | |
| - -machines=http://127.0.0.1:4001 | |
| - -addr=0.0.0.0:53 | |
| - -ns-rotate=false | |
| - -domain=cluster.local. | |
| ports: | |
| - containerPort: 53 | |
| name: dns | |
| protocol: UDP | |
| - containerPort: 53 | |
| name: dns-tcp | |
| protocol: TCP | |
| livenessProbe: | |
| httpGet: | |
| path: /healthz | |
| port: 8080 | |
| scheme: HTTP | |
| initialDelaySeconds: 30 | |
| timeoutSeconds: 5 | |
| readinessProbe: | |
| httpGet: | |
| path: /healthz | |
| port: 8080 | |
| scheme: HTTP | |
| initialDelaySeconds: 1 | |
| timeoutSeconds: 5 | |
| - name: healthz | |
| image: gcr.io/google_containers/exechealthz:1.0 | |
| resources: | |
| # keep request = limit to keep this container in guaranteed class | |
| limits: | |
| cpu: 10m | |
| memory: 20Mi | |
| requests: | |
| cpu: 10m | |
| memory: 20Mi | |
| args: | |
| - -cmd=nslookup kubernetes.default.svc.cluster.local 127.0.0.1 >/dev/null | |
| - -port=8080 | |
| ports: | |
| - containerPort: 8080 | |
| protocol: TCP | |
| volumes: | |
| - name: etcd-storage | |
| emptyDir: {} | |
| dnsPolicy: Default # Don't use cluster DNS. |
Author
v1k0d3n
commented
Jan 20, 2016
apiVersion: v1
kind: Service
metadata:
name: kube-dns
namespace: kube-system
labels:
k8s-app: kube-dns
kubernetes.io/cluster-service: "true"
kubernetes.io/name: "KubeDNS"
spec:
selector:
k8s-app: kube-dns
clusterIP: 10.254.0.10
ports:
- name: dns
port: 53
protocol: UDP
- name: dns-tcp
port: 53
protocol: TCP
[fedora@kubemaster ~]$ kubectl exec -it busybox -c busybox -- sh
/ # nslookup kube-ui.kube-system.svc.cluster.local
Server: 10.254.0.10
Address 1: 10.254.0.10
nslookup: can't resolve 'kube-ui.kube-system.svc.cluster.local'
/ #
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