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