Kubernetes dashboard集成heapster

圖形化展示度量指標的實現需要集成k8s的另外一個Addons組件： Heapster 。

Heapster原生支持K8s(v1.0.6及以后版本)和 CoreOS ，並且支持多種存儲后端，比如： InfluxDB 、 ElasticSearch 、 Kafka 。

 

下載源包和images文件

下載地址https://github.com/kubernetes/heapster/archive/v1.2.0.zip,將包copy到kubernetes master節點上去.

打開deploy/kube-config/influxdb目錄看到5個部署文件

 

參看這幾個 yaml文件,預先把需要pull的image在nodes節點上准備好

docker pull kubernetes/heapster:canary
docker pull kubernetes/heapster_influxdb:v0.5
docker pull gcr.io/google_containers/heapster_grafana:v2.6.0-2

運行創建(master)

然后在master節點上運行

kubectl create -f deploy/kube-config/influxdb/

通過kube get pods -n kube-system發現heapster-zm85m沒有運行起來,基於下面命令查看日志

 

kubectl logs -f pods/heapster-zm85m -n kube-system

 

發現錯誤

 

 編輯heapster-control.yaml文件,把其中source這行替換成本機的api server ip並添加?inClusterConfig=false

刪除之前創建的pod重新create一遍.

 spec: containers: - name: heapster image: kubernetes/heapster:canary imagePullPolicy: Always command: - /heapster - --source=kubernetes:http://<api server ip>:<port>?inClusterConfig=false - --sink=influxdb:http://monitoring-influxdb:8086

最后的yaml文件:

[root@k8s-master influxdb]# cat heapster-controller.yaml 
apiVersion: v1
kind: ReplicationController
metadata:
  labels:
    k8s-app: heapster
    name: heapster
    version: v6
  name: heapster
  namespace: kube-system
spec:
  replicas: 1
  selector:
    k8s-app: heapster
    version: v6
  template:
    metadata:
      labels:
        k8s-app: heapster
        version: v6
    spec:
      containers:
      - name: heapster
        image: kubernetes/heapster:canary
        command:
        - /heapster
        - --source=kubernetes:http://10.182.169.33:8080?inClusterConfig=false
        - --sink=influxdb:http://monitoring-influxdb:8086

 

# kubectl delete  -f deploy/kube-config/influxdb/

# kubectl create -f deploy/kube-config/influxdb/

再次打開kubernetes dashboard,就可以看到獲取的監控數據啦