故障排除---Operator部署Prometheus无法NodePort访问

1. 故障现象

部署kube-prometheus并配置了nodeport,但无法通过NodePort端口进行访问.

root@k8s-master1:~/prometheus-for-0.13/kube-prometheus-0.13.0/manifests# kubectl get svc -n monitoring 
NAME                    TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)                         AGE
alertmanager-main       ClusterIP   10.233.45.39   <none>        9093/TCP,8080/TCP               19m
alertmanager-operated   ClusterIP   None           <none>        9093/TCP,9094/TCP,9094/UDP      19m
blackbox-exporter       ClusterIP   10.233.13.27   <none>        9115/TCP,19115/TCP              19m
grafana                 NodePort    10.233.57.87   <none>        3000:31865/TCP                  19m
kube-state-metrics      ClusterIP   None           <none>        8443/TCP,9443/TCP               19m
node-exporter           ClusterIP   None           <none>        9100/TCP                        19m
prometheus-adapter      ClusterIP   10.233.8.55    <none>        443/TCP                         19m
prometheus-k8s          NodePort    10.233.6.76    <none>        9090:31823/TCP,8080:32026/TCP   19m
prometheus-operated     ClusterIP   None           <none>        9090/TCP                        19m
prometheus-operator     ClusterIP   None           <none>        8443/TCP                        19m

最开始检查是用git clone的main,但发现k8s的版本是v1.28.12.根据兼容表的提示,将Prometheus版本降到0.13.
但故障任然

2. 故障排除

发现manifests/prometheus-networkPolicy.yaml中有一段对ingress的限定,默认为:

  - from: - podSelector:matchLabels:app.kubernetes.io/name: prometheus-adapter

改为

  - from: []#- podSelector:#    matchLabels:#      app.kubernetes.io/name: prometheus-adapter

应用部署

kubectl apply -f prometheus-networkPolicy.yaml

重新刷新后,页面可以正常访问了.