k8s 常用命令
[root@master ~]# kubectl get nodes
NAME STATUS ROLES AGE VERSION master Ready master 1h v1.8.1 node1 Ready <none> 1h v1.8.1 node2 Ready <none> 1h v1.8.1
[root@master network]# kubectl get po --all-namespaces
NAMESPACE NAME READY STATUS RESTARTS AGE kube-system etcd-master 1/1 Running 0 3m kube-system kube-apiserver-master 1/1 Running 0 4m kube-system kube-controller-manager-master 1/1 Running 0 4m kube-system kube-dns-545bc4bfd4-kvvg2 3/3 Running 0 4m kube-system kube-flannel-ds-djdp4 2/2 Running 1 21s kube-system kube-flannel-ds-mb75s 2/2 Running 0 1m kube-system kube-flannel-ds-sxpkq 2/2 Running 1 18s kube-system kube-proxy-6s8wz 1/1 Running 0 21s kube-system kube-proxy-d4snf 1/1 Running 0 4m kube-system kube-proxy-lnxfv 1/1 Running 0 18s kube-system kube-scheduler-master 1/1 Running 0 4m
kubectl get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 8m
kubectl logs -f kubernetes-dashboard-759ccc86d9-svmlk --namespace=kube-system
2018/02/07 05:23:45 Starting overwatch 2018/02/07 05:23:45 Using in-cluster config to connect to apiserver 2018/02/07 05:23:45 Using service account token for csrf signing 2018/02/07 05:23:45 No request provided. Skipping authorization 2018/02/07 05:23:45 Successful initial request to the apiserver, version: v1.8.2 2018/02/07 05:23:45 New synchronizer has been registered: kubernetes-dashboard-key-holder-kube-system. Starting 2018/02/07 05:23:45 Starting secret synchronizer for kubernetes-dashboard-key-holder in namespace kube-system 2018/02/07 05:23:45 Generating JWE encryption key 2018/02/07 05:23:46 Storing encryption key in a secret 2018/02/07 05:23:46 Creating in-cluster Heapster client 2018/02/07 05:23:46 Metric client health check failed: the server could not find the requested resource (get services heapster). Retrying in 30 seconds. 2018/02/07 05:23:46 Serving insecurely on HTTP port: 9090 2018/02/07 05:24:16 Metric client health check failed: the server could not find the requested resource (get services heapster). Retrying in 30 seconds. 2018/02/07 05:24:46 Metric client health check failed: the server could not find the requested resource (get services heapster). Retrying in 30 seconds. 2018/02/07 05:25:16 Metric client health check failed: the server could not find the requested resource (get services heapster). Retrying in 30 seconds. 2018/02/07 05:25:46 Metric client health check failed: the server could not find the requested resource (get services heapster). Retrying in 30 seconds.
kubectl get pods -n kube-system -o wide
NAME READY STATUS RESTARTS AGE IP NODE etcd-master 1/1 Running 0 7m 10.10.6.11 master kube-apiserver-master 1/1 Running 0 8m 10.10.6.11 master kube-controller-manager-master 1/1 Running 0 8m 10.10.6.11 master kube-dns-545bc4bfd4-kvvg2 3/3 Running 0 8m 10.96.0.2 master kube-flannel-ds-djdp4 2/2 Running 1 4m 10.10.6.13 node2 kube-flannel-ds-mb75s 2/2 Running 0 5m 10.10.6.11 master kube-flannel-ds-sxpkq 2/2 Running 1 4m 10.10.6.12 node1 kube-proxy-6s8wz 1/1 Running 0 4m 10.10.6.13 node2 kube-proxy-d4snf 1/1 Running 0 8m 10.10.6.11 master kube-proxy-lnxfv 1/1 Running 0 4m 10.10.6.12 node1 kube-scheduler-master 1/1 Running 0 8m 10.10.6.11 master kubernetes-dashboard-759ccc86d9-svmlk 1/1 Running 0 2m 10.96.2.2 node1
kubectl get svc --all-namespaces
NAMESPACE NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE default kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 1h kube-system kube-dns ClusterIP 10.96.0.10 <none> 53/UDP,53/TCP 1h kube-system kubernetes-dashboard NodePort 10.104.11.151 <none> 80:31234/TCP 1h [root@master ~]#
