Kubernetes-Heapster搭建

k8s-Heapster监控

基于CentOS7 k8s集群

Master

镜像下载

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docker pull ist0ne/heapster-grafana-amd64
docker pull ist0ne/heapster-amd64
docker pull ist0ne/heapster-influxdb-amd64:v1.1.1

下载heapster

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wget https://github.com/kubernetes/heapster/archive/v1.3.0.tar.gz
tar xf v1.3.0.tar.gz
cd heapster-1.3.0/deploy/kube-config/influxdb/

配置文件

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cat > grafana-deployment.yaml <EOF
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: monitoring-grafana
  namespace: kube-system
spec:
  replicas: 1
  template:
    metadata:
      labels:
        task: monitoring
        k8s-app: grafana
    spec:
      containers:
      - name: grafana
#修改镜像
        image: docker.io/ist0ne/heapster-grafana-amd64:latest
        ports:
          - containerPort: 3000
            protocol: TCP
        volumeMounts:
        - mountPath: /var
          name: grafana-storage
        env:
        - name: INFLUXDB_HOST
          value: monitoring-influxdb
        - name: GRAFANA_PORT
          value: "3000"
          # The following env variables are required to make Grafana accessible via
          # the kubernetes api-server proxy. On production clusters, we recommend
          # removing these env variables, setup auth for grafana, and expose the grafana
          # service using a LoadBalancer or a public IP.
        - name: GF_AUTH_BASIC_ENABLED
          value: "false"
        - name: GF_AUTH_ANONYMOUS_ENABLED
          value: "true"
        - name: GF_AUTH_ANONYMOUS_ORG_ROLE
          value: Admin
        - name: GF_SERVER_ROOT_URL
          # If you're only using the API Server proxy, set this value instead:
          # value: /api/v1/proxy/namespaces/kube-system/services/monitoring-grafana/
          value: /
      volumes:
      - name: grafana-storage
        emptyDir: {}
EOF

修改配置

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cat > heapster-deployment.yaml <EOF
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: heapster
  namespace: kube-system
spec:
  replicas: 1
  template:
    metadata:
      labels:
        task: monitoring
        k8s-app: heapster
    spec:
      containers:
      - name: heapster
#修改镜像
        image: docker.io/ist0ne/heapster-amd64:latest
        imagePullPolicy: IfNotPresent
        command:
        - /heapster
#修改为apiserver地址
        - --source=kubernetes:http://192.168.1.90:8080?inClusterConfig=false
        - --sink=influxdb:http://monitoring-influxdb:8086
EOF

修改配置

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cat > influxdb-deployment.yaml <EOF
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: monitoring-influxdb
  namespace: kube-system
spec:
  replicas: 1
  template:
    metadata:
      labels:
        task: monitoring
        k8s-app: influxdb
    spec:
      containers:
      - name: influxdb
#修改镜像
        image: docker.io/ist0ne/heapster-influxdb-amd64:v1.1.1
        volumeMounts:
        - mountPath: /data
          name: influxdb-storage
      volumes:
      - name: influxdb-storage
        emptyDir: {}
EOF

创建启动

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kubectl create -f /root/heapster-1.3.0/deploy/kube-config/influxdb/influxdb/
kubectl delete -f /root/heapster-1.3.0/deploy/kube-config/influxdb/influxdb/

测试

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kubectl get pods --all-namespaces
kubectl get pods --all-namespaces
NAMESPACE     NAME                                    READY     STATUS    RESTARTS   AGE
default       busybox                                 1/1       Running   6          6h
kube-system   heapster-3793345097-cr2kh               1/1       Running   0          6h
kube-system   kube-dns-495361171-9mhfj                4/4       Running   0          7h
kube-system   kubernetes-dashboard-2899419805-686b7   1/1       Running   1          1d
kube-system   monitoring-grafana-4241701950-3w2tw     1/1       Running   0          1d
kube-system   monitoring-influxdb-2174575918-8v835    1/1       Running   0          1d

打开浏览器http://192.168.1.90:8080/ui查看状态即可