helm 部署 prometheus

1、拉取helm charts

helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
helm repo update
helm search repo prometheus-community --versions            # 选你想要的版本
helm pull prometheus-community/kube-prometheus-stack --version 75.18.1 --untar

2、修改values文件

# values.yaml
  extraArgs:
    web.external-url: "http://prometheus.xwk.local"       # Prometheus内部感知的对外访问URL，一定要添加不要漏了
···
  ingress：
    enabled: true           # 开启
    ingressClassName: "traefik"     # 改为自己的ingress类
···
   hosts:
     - prometheus.xwk.local         # 添加访问地址
···
   persistentVolume:
     enabled: true
     storageClass: "nfs-data"       # 添加存储类
···
alertmanager:
  ## If false, alertmanager will not be installed
  ##
  enabled: true

  persistence:
    size: 2Gi

  podSecurityContext:
    runAsUser: 65534
    runAsNonRoot: true
    runAsGroup: 65534
    fsGroup: 65534

  persistence:                  # 这个是原来values中没有的，需要自己添加进去，不然storage-prometheus-alertmanager-0会处于pending状态
    enabled: true
    storageClass: "nfs-data"
    accessModes:
      - ReadWriteOnce
    size: 2Gi


# 安装
[root@master-11 prometheus]# helm install -n prometheus prometheus -f values.yaml .
Release "prometheus" has been install. Happy Helming!
NAME: prometheus
LAST DEPLOYED: Fri Sep  5 23:54:49 2025
NAMESPACE: prometheus
STATUS: deployed
REVISION: 7
TEST SUITE: None
NOTES:
The Prometheus server can be accessed via port 80 on the following DNS name from within your cluster:
prometheus-server.prometheus.svc.cluster.local

For access from outside the cluster, the server URL(s) are:
http://prometheus.xwk.local


The Prometheus alertmanager can be accessed via port 9093 on the following DNS name from within your cluster:
prometheus-alertmanager.prometheus.svc.cluster.local


Get the Alertmanager URL by running these commands in the same shell:
  export POD_NAME=$(kubectl get pods --namespace prometheus -l "app.kubernetes.io/name=alertmanager,app.kubernetes.io/instance=prometheus" -o jsonpath="{.items[0].metadata.name}")
  kubectl --namespace prometheus port-forward $POD_NAME 9093
#################################################################################
######   WARNING: Pod Security Policy has been disabled by default since    #####
######            it deprecated after k8s 1.25+. use                        #####
######            (index .Values "prometheus-node-exporter" "rbac"          #####
###### .          "pspEnabled") with (index .Values                         #####
######            "prometheus-node-exporter" "rbac" "pspAnnotations")       #####
######            in case you still need it.                                #####
#################################################################################


The Prometheus PushGateway can be accessed via port 9091 on the following DNS name from within your cluster:
prometheus-prometheus-pushgateway.prometheus.svc.cluster.local


Get the PushGateway URL by running these commands in the same shell:
  export POD_NAME=$(kubectl get pods --namespace prometheus -l "app=prometheus-pushgateway,component=pushgateway" -o jsonpath="{.items[0].metadata.name}")
  kubectl --namespace prometheus port-forward $POD_NAME 9091

For more information on running Prometheus, visit:
https://prometheus.io/

[root@master-11 ~]# kubectl get pods -n prometheus
NAME                                                 READY   STATUS    RESTARTS   AGE
prometheus-alertmanager-0                            1/1     Running   0          64m
prometheus-kube-state-metrics-65d678f66d-jzlgc       1/1     Running   0          71m
prometheus-prometheus-node-exporter-jwvvb            1/1     Running   0          71m
prometheus-prometheus-node-exporter-kfc7r            1/1     Running   0          71m
prometheus-prometheus-node-exporter-s5ljx            1/1     Running   0          71m
prometheus-prometheus-pushgateway-85f676f677-sdl95   1/1     Running   0          71m
prometheus-server-7599c98758-vxrlp                   2/2     Running   0          29m


# 访问web页面
添加hosts解析后访问http://prometheus.xwk.local/