CREATE USER 'exporter'@'ip' IDENTIFIED BY 'password' WITH MAX_USER_CONNECTIONS 3;
GRANT PROCESS, REPLICATION CLIENT, SELECT ON *.* TO 'exporter'@'ip';

apiVersion: v1
kind: Secret
metadata:
  name: mysql-secret-test
  namespace: mysql-demo
type: Opaque
stringData:
  datasource: "user:password@tcp(ip:port)/"  #对应 MySQL 连接串信息


apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    k8s-app: mysql-exporter  # 根据业务需要调整成对应的名称，建议加上 MySQL 实例的信息
  name: mysql-exporter  # 根据业务需要调整成对应的名称，建议加上 MySQL 实例的信息
  namespace: mysql-demo
spec:
  replicas: 1
  selector:
    matchLabels:
      k8s-app: mysql-exporter  # 根据业务需要调整成对应的名称，建议加上 MySQL 实例的信息
  template:
    metadata:
      labels:
        k8s-app: mysql-exporter  # 根据业务需要调整成对应的名称，建议加上 MySQL 实例的信息
    spec:
      containers:
      - env:
        - name: DATA_SOURCE_NAME
          valueFrom:
            secretKeyRef:
              name: mysql-secret-test # 对应上一步中的 Secret 的名称
              key: datasource # 对应上一步中的 Secret Key
        image: ccr.ccs.tencentyun.com/rig-agent/mysqld-exporter:v0.12.1
        imagePullPolicy: IfNotPresent
        name: mysql-exporter
        ports:
        - containerPort: 9104
          name: metric-port 
        terminationMessagePath: /dev/termination-log
        terminationMessagePolicy: File
      dnsPolicy: ClusterFirst
      imagePullSecrets:
      - name: qcloudregistrykey
      restartPolicy: Always
      schedulerName: default-scheduler
      securityContext: {}
      terminationGracePeriodSeconds: 30


wget -O- localhost:9104/metrics

  apiVersion: monitoring.coreos.com/v1
  kind: PodMonitor
  metadata:
    name: mysql-exporter  # 填写一个唯一名称
    namespace: cm-prometheus  # 按量实例: 集群的 namespace; 包年包月实例(已停止售卖): namespace 固定，不要修改
  spec:
    podMetricsEndpoints:
    - interval: 30s
      port: metric-port    # 填写pod yaml中Prometheus Exporter对应的Port的Name
      path: /metrics  # 填写Prometheus Exporter对应的Path的值，不填默认/metrics
      relabelings:
      - action: replace
        sourceLabels: 
        - instance
        regex: (.*)
        targetLabel: instance
        replacement: 'cdb-xxxxxx' # 调整成对应的 MySQL 实例 ID
      - action: replace
        sourceLabels: 
        - instance
        regex: (.*)
        targetLabel: ip
        replacement: '1.x.x.x' # 调整成对应的 MySQL 实例 IP
    namespaceSelector:   # 选择要监控pod所在的namespace
      matchNames:
      - mysql-demo
    selector:  # 填写要监控pod的Label值，以定位目标pod
      matchLabels:
        k8s-app: mysql-exporter