prometheus-08k8s-node

官方库

https://github.com/prometheus/node_exporter

daemonset方式部署

以daemonset方式部署 node_exporter

# prome-node-exporter.yaml
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: node-exporter
  namespace: monitor
  labels:
    app: node-exporter
spec:
  selector:
    matchLabels:
      app: node-exporter
  template:
    metadata:
      labels:
        app: node-exporter
    spec:
      hostPID: true
      hostIPC: true
      hostNetwork: true
      nodeSelector:
        kubernetes.io/os: linux
      containers:
      - name: node-exporter
        image: prom/node-exporter:v1.3.1
        args:
        - --web.listen-address=$(HOSTIP):9100
        - --path.procfs=/host/proc
        - --path.sysfs=/host/sys
        - --path.rootfs=/host/root
        - --no-collector.hwmon # 禁用不需要的一些采集器
        - --no-collector.nfs
        - --no-collector.nfsd
        - --no-collector.nvme
        - --no-collector.dmi
        - --no-collector.arp
        - --collector.filesystem.ignored-mount-points=^/(dev|proc|sys|var/lib/containerd/.+|/var/lib/docker/.+|var/lib/kubelet/pods/.+)($|/)
        - --collector.filesystem.ignored-fs-types=^(autofs|binfmt_misc|cgroup|configfs|debugfs|devpts|devtmpfs|fusectl|hugetlbfs|mqueue|overlay|proc|procfs|pstore|rpc_pipefs|securityfs|sysfs|tracefs)$
        ports:
        - containerPort: 9100
        env:
        - name: HOSTIP
          valueFrom:
            fieldRef:
              fieldPath: status.hostIP
        resources:
          requests:
            cpu: 150m
            memory: 180Mi
          limits:
            cpu: 150m
            memory: 180Mi
        securityContext:
          runAsNonRoot: true
          runAsUser: 65534
        volumeMounts:
        - name: proc
          mountPath: /host/proc
        - name: sys
          mountPath: /host/sys
        - name: root
          mountPath: /host/root
          mountPropagation: HostToContainer
          readOnly: true
      tolerations:
      - operator: "Exists"
      volumes:
      - name: proc
        hostPath:
          path: /proc
      - name: dev
        hostPath:
          path: /dev
      - name: sys
        hostPath:
          path: /sys
      - name: root
        hostPath:
          path: /

systemctl 宿主机直接安装

# yum包 https://copr.fedorainfracloud.org/coprs/ibotty/prometheus-exporters/
curl -Lo /etc/yum.repos.d/_copr_ibotty-prometheus-exporters.repo https://copr.fedorainfracloud.org/coprs/ibotty/prometheus-exporters/repo/epel-7/ibotty-prometheus-exporters-epel-7.repo && yum install node_exporter -y

# 启动
systemctl enable node_exporter --now