本文介绍如何通过K8S集群中安装kube-prometheus+grafana来监控集群外的linux虚拟机。
linux主机安装node_exporter
node_exporter 主要用于 linux 系统监控, 用 Golang 编写。
songjiayang.gitbooks.io/prometheus/…
配置通过SVC访问集群外地址
原理： www.linuxdevops.cn/2022/02/k-d…
K8S中添加Service和Endpoints
apiVersion: v1
kind: Service
metadata:
labels:
app: node-exporter-vm-agent
release: prometheus
name: node-exporter-vm-agent
spec:
ports:
- name: metrics
port: 9100
protocol: TCP
targetPort: 9100
type: ClusterIP
---
apiVersion: v1
kind: Endpoints
metadata:
name: node-exporter-vm-agent
subsets:
- addresses:
- ip: xxx.xxx.xxx.xxx
ports:
- name: metrics
port: 9100
protocol: TCP
kube-prometheus配置ServiceMonitor
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
annotations:
meta.helm.sh/release-name: prometheus
meta.helm.sh/release-namespace: foundation
labels:
app: node-exporter-vm-agent
release: prometheus
name: prom00-node-exporter-vm-agent
spec:
endpoints:
- port: metrics
scheme: http
path: /metrics
jobLabel: jobLabel
selector:
matchLabels:
app: node-exporter-vm-agent
release: prometheus
查看prom的targets，确认对接成功
grafana配置
grafana.com/grafana/das… grafana导入dashboard的ID号1860。
