k8s中prometheus监控k8s外mysql

k8s外安装mysql

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配置MySQL Exporter采集MySQL监控数据

创建yaml文件：vim mysql-exporter.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: mysql-exporter
  namespace: monitoring
spec:
  replicas: 1
  selector:
    matchLabels:
      k8s-app: mysql-exporter
  template:
    metadata:
      labels:
        k8s-app: mysql-exporter
    spec:
      containers:
      - name: mysql-exporter
        image: registry.cn-chengdu.aliyuncs.com/qzcsbj/mysqld-exporter:v0.12.1
        env:
         - name: DATA_SOURCE_NAME
           value: "root:123456@(192.168.117.160:3306)/"
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 9104
---
apiVersion: v1
kind: Service
metadata:
  name: mysql-exporter
  namespace: monitoring
  labels:
    k8s-app: mysql-exporter
spec:
  type: ClusterIP
  selector:
    k8s-app: mysql-exporter
  ports:
  - name: mysql-exporter-api
    port: 9104
    protocol: TCP

创建exporter：kubectl create -f mysql-exporter.yaml

查看资源：kubectl get -f mysql-exporter.yaml

查看pod：kubectl get po -n monitoring |grep mysql-exporter

查看svc：kubectl get svc -n monitoring |grep mysql-exporter

查看是否获取到监控数据：curl 10.109.182.129:9104/metrics | grep max_connections

创建sm

prometheus中查看数据

查看prometheus的svc：kubectl get svc -n monitoring | grep prometheus

请求：http://192.168.117.161:30576

target中，prometheus自动发现了mysql

config中，自动生成了配置文件

查询数据：max_connections（要手动输入，不能复制粘贴）

mysql_global_variables_max_connections

grafana中查看数据

查看grafana的svc：kubectl get svc -n monitoring | grep grafana

请求：http://192.168.117.161:31239/

导入模板：https://grafana.com/grafana/dashboards/7362

然后选择数据源

效果

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【性能项目实战：jmeter+k8s+微服务+skywalking+efk】汇总

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