k8s 部署 prometheus

创建namespace

prometheus-namespace.yaml

apiVersion: v1
kind: Namespace
metadata:name: ns-prometheus

拉取镜像

docker pull swr.cn-north-4.myhuaweicloud.com/ddn-k8s/quay.io/prometheus/prometheus:v2.54.0

prometheus配置文件configmap

prometheus-configmap.yaml

apiVersion: v1
kind: ConfigMap
metadata:name: prometheus-confignamespace: ns-prometheus
data:prometheus.yml: |-# Prometheus配置内容global:scrape_interval: 15sevaluation_interval: 15sscrape_configs:- job_name: 'prometheus'static_configs:- targets: ['localhost:9090', '10.0.2.13:31672']

localhost:9090为prometheus服务自己本身的metrics；10.0.2.13:31672为node exporter的metrics。targets是一个数组可以增加多个。

prometheus 的 Deployment

prometheus-deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:name: prometheusnamespace: ns-prometheus
spec:replicas: 1selector:matchLabels:name: prometheustemplate:metadata:labels:name: prometheusspec:# hostNetwork: truecontainers:- name: prometheusimage: swr.cn-north-4.myhuaweicloud.com/ddn-k8s/quay.io/prometheus/prometheus:v2.54.0args:- --config.file=/etc/prometheus/prometheus.ymlports:- containerPort: 9090volumeMounts:- mountPath: /etc/prometheusname: prometheus-configvolumes:- name: prometheus-configconfigMap:name: prometheus-config

使用Service模式部署可以注释hostNetwork: true

prometheus 的 Service

prometheus-service.yaml

apiVersion: v1
kind: Service
metadata:name: prometheus-servicenamespace: ns-prometheus
spec:selector:name: prometheusports:- protocol: TCPport: 9090targetPort: 9090nodePort: 30090type: NodePort

启动

kubectl apply -f prometheus-namespace.yaml
kubectl apply -f prometheus-configmap.yaml
kubectl apply -f .

查看

kubectl get pod -n ns-prometheus
kubectl get svc -n ns-prometheus

访问

http://10.0.2.12:30090/

10.0.2.12为宿主机ip，30090为Service映射的port