Kubernetes常用命令

查看kubernetes管理的pods
[root@centos-master kubeguide]#
kubectl get pods
NAME                 READY     STATUS    RESTARTS   AGE
redis-master-u3824   1/1       Running   0          15m

查看kubernetes管理的nodes
[root@centos-master kubeguide]#
kubectl get nodes
NAME            LABELS                                 STATUS    AGE
centos-master  
kubernetes.io/hostname=centos-master   Ready     3d
centos-minion  
kubernetes.io/hostname=centos-minion   Ready     3d

查看Replication Controller
[root@centos-master kubeguide]#
kubectl get rc
CONTROLLER     CONTAINER(S)   IMAGE(S)                 SELECTOR            REPLICAS   AGE
redis-master   master         kubeguide/redis-master   name=redis-master   1          1h

删除资源
[root@centos-master kubeguide]#
kubectl stop -f redis-master-controller.yaml

查看Service状态
[root@centos-master kubeguide]#
kubectl describe service frontend

Name: frontend

Namespace: default

Labels: name=frontend

Selector: name=frontend

Type: NodePort

IP: 10.10.55.133

Port: <unnamed> 80/TCP

NodePort: <unnamed> 30001/TCP

Endpoints: 172.17.0.10:80,172.17.0.7:80,172.17.0.8:80

Session Affinity: None
No events.

[root@centos-master kubeguide]#
kubectl describe pods redis-master

Name: redis-master-b7u7l

Namespace: default

Image(s): kubeguide/redis-master

Node: centos-minion/

Start Time: Tue, 23 Feb 2016 14:49:35 +0800

Labels: name=redis-master

Status: Pending

Reason:

Message:

IP:

Replication Controllers: redis-master (1/1 replicas created)

Containers:

  master:

    Container ID:

    Image: kubeguide/redis-master

    Image ID:

    QoS Tier:

      memory: BestEffort

      cpu: BestEffort

    State: Waiting

    Ready: False

    Restart Count: 0

    Environment Variables:

No volumes.

Events:

  FirstSeen LastSeen Count From SubobjectPath Reason Message

  ───────── ──────── ───── ──── ───────────── ────── ───────

  38m 38m 1 {kubelet centos-minion} implicitly required container POD Pulled Successfully pulled image "registry.access.redhat.com/rhel7/pod-infrastructure:latest"

  38m 38m 1 {kubelet centos-minion} implicitly required container POD Created Created with docker id 3f6c9cdd351a

  38m 38m 1 {kubelet centos-minion} implicitly required container POD Started Started with docker id 3f6c9cdd351a

  38m 38m 1 {kubelet centos-minion} spec.containers{master} Pulling pulling image "kubeguide/redis-master"

  59s 59s 1 {kubelet centos-minion} implicitly required container POD Pulled Container image "registry.access.redhat.com/rhel7/pod-infrastructure:latest" already
present on machine

  54s 54s 1 {kubelet centos-minion} implicitly required container POD Created Created with docker id 83c6847b9cd7

  53s 53s 1 {kubelet centos-minion} implicitly required container POD Started Started with docker id 83c6847b9cd7
  53s 53s 1 {kubelet centos-minion} spec.containers{master} Pulling pulling image "kubeguide/redis-master"

查看etcd中的数据
etcdctl --endpoint
http://10.10.3.184:2379 ls /registry

重新设置pod副本数
kubectl scale --replicas=4 replicationcontrollers frontend