小编Con*_*nst的帖子

我们如何通过命令行获取Kubernetes上每个Pod的实际资源使用情况（而非资源请求）？Heapster已过时。同时，Metrics-server仍然不支持kubectl top pod。

1. 堆-

   我使用以下命令部署了Heapster

   $ heapster/deploy/kube.sh start
   kubectl get pods --all-namespaces
   NAMESPACE     NAME                                                           READY     STATUS    RESTARTS   AGE
   kube-system   calico-node-hlcbl                                              2/2       Running   0          39m
   kube-system   calico-node-m8jl2                                              2/2       Running   0          35m
   kube-system   coredns-78fcdf6894-bl94w                                       1/1       Running   0          39m
   kube-system   coredns-78fcdf6894-fwx95                                       1/1       Running   0          39m
   kube-system   etcd-ctl.kube.yarnrm-pg0.utah.cloudlab.us                      1/1       Running   0          39m
   kube-system   heapster-84c9bc48c4-qzt8x                                      1/1       Running   0          15s
   kube-system   kube-apiserver-ctl.kube.yarnrm-pg0.utah.cloudlab.us            1/1       Running   0          39m
   kube-system   kube-controller-manager-ctl.kube.yarnrm-pg0.utah.cloudlab.us   1/1       Running   0          38m
   kube-system   kube-proxy-nj9f8                                               1/1       Running   0          35m
   kube-system   kube-proxy-zvr2b                                               1/1       Running   0          39m …

   Run Code Online (Sandbox Code Playgroud)

我有以下PersistentVolumeClaim：

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: nginx-pvc
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 256Mi
  storageClassName: fask

和部署：

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
spec:
  replicas: 2
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:1.7.9
        ports:
        - containerPort: 80
        volumeMounts:
        - name: data
          mountPath: "/var/www/html"
      volumes:
      - name: data
        persistentVolumeClaim:
          claimName: nginx-pvc

如果我使用单个副本部署运行，我的 PV 会由 vSphere StorageClass动态创建

AttachVolume.Attach …