安装-配置kube-prometheus

kubernetes 1.33.4最新版部署prometheus

拉取配置文件

git clone -b main https://github.com/prometheus-operator/kube-prometheus.git
#根据readme.md选择合适的版本
#prometheus-operator项目为核心，kube-prometheus项目才是一套完整的系统

拉取镜像

查看镜像
cd manifests/
grep "image:" ./*

手动预拉取，或更改为国内镜像地址
    docker pull quay.io/prometheus/alertmanager:v0.28.1
    docker pull quay.io/prometheus/blackbox-exporter:v0.27.0
    docker pull ghcr.io/jimmidyson/configmap-reload:v0.15.0
    docker pull quay.io/brancz/kube-rbac-proxy:v0.19.1
    docker pull grafana/grafana:12.1.0
    docker pull registry.k8s.io/kube-state-metrics/kube-state-metrics:v2.16.0
    docker pull quay.io/brancz/kube-rbac-proxy:v0.19.1
    docker pull quay.io/brancz/kube-rbac-proxy:v0.19.1
    docker pull quay.io/prometheus/node-exporter:v1.9.1
    docker pull quay.io/brancz/kube-rbac-proxy:v0.19.1
    docker pull registry.k8s.io/prometheus-adapter/prometheus-adapter:v0.12.0
    docker pull quay.io/prometheus-operator/prometheus-operator:v0.85.0
    docker pull quay.io/brancz/kube-rbac-proxy:v0.19.1
    docker pull quay.io/prometheus/prometheus:v3.5.0

部署

kubectl create -f manifests/setup
kubectl create -f manifests/
查看pod
    [root@m3 ~]# kubectl get pod -A |grep mo
    monitoring             alertmanager-main-0                                    2/2     Running   0             131m
    monitoring             alertmanager-main-1                                    2/2     Running   0             131m
    monitoring             alertmanager-main-2                                    2/2     Running   0             131m
    monitoring             blackbox-exporter-6d86f57b57-xwswx                     3/3     Running   0             132m
    monitoring             grafana-7c68d76c67-zhb82                               1/1     Running   0             132m
    monitoring             kube-state-metrics-c66bdcf9c-24fv2                     3/3     Running   0             132m
    monitoring             node-exporter-28dpn                                    2/2     Running   0             132m
    monitoring             node-exporter-49h2v                                    2/2     Running   0             15m
    monitoring             node-exporter-fr9zh                                    2/2     Running   0             132m
    monitoring             node-exporter-kfk7r                                    2/2     Running   0             132m
    monitoring             node-exporter-nwhjm                                    2/2     Running   0             132m
    monitoring             prometheus-adapter-599c88b6c4-682hz                    1/1     Running   0             132m
    monitoring             prometheus-adapter-599c88b6c4-n7ftz                    1/1     Running   0             132m
    monitoring             prometheus-k8s-0                                       2/2     Running   0             131m
    monitoring             prometheus-k8s-1                                       2/2     Running   0             131m
    monitoring             prometheus-operator-6fccbfd7fb-cdqj4                   2/2     Running   0             132m

配置ingress

kubectl apply -f ingress-prom.yaml 

# cat ingress-prom.yaml  
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: prometheus-web
  namespace: monitoring
  annotations:
    # 可选：添加 Traefik 特定配置
    # 例如启用 TLS、中间件等
    # traefik.ingress.kubernetes.io/router.middlewares: monitoring-compress@kubernetescrd
spec:
  ingressClassName: nginx  # 指定使用 Traefik IngressClass
  rules:
    - host: prometheus.example.com
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: prometheus-k8s
                port:
                  number: 9090
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: alertmanager-web
  namespace: monitoring
spec:
  ingressClassName: nginx
  rules:
    - host: alertmanager.example.com
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: alertmanager-main
                port:
                  number: 9093
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: grafana-web
  namespace: monitoring
spec:
  ingressClassName: nginx
  rules:
    - host: grafana.example.com
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: grafana
                port:
                  number: 3000

设置ingress访问grafana的权限

参考 grafana无法通过ingress代理
url：

本地设置hosts

访问web页面 
    http://grafana.example.com/
     prometheus数据默认会自动配置好

设置模板
    使用神秘代码：16098 即可显示node健康信息

持久化

默认不会持久化保存监控数据，数据库的pod重启会丢失监控历史数据
pass