prometheus监控redis（无metric接口）

迷南。 2022-09-02 00:43 261阅读 0赞

1，部署一个测试环境

[root@\ k8s-m-01~]# mkdir redis
    [root@\ k8s-m-01~]# cd redis/
    
    [root@\ k8s-m-01~/redis]# vim deploymeng_redis.yaml
    kind: Deployment
    apiVersion: apps/v1
    metadata:
      name: redis
    spec:
      selector:
        matchLabels:
          k8s: redis-exporter
      template:
        metadata:
          labels:
            k8s: redis-exporter
        spec:
          containers:
            - name: redis
              imagePullPolicy: IfNotPresent
              image: redis
    ---
    kind: Service
    apiVersion: v1
    metadata:
      name: redis-svc
      labels:
        k8s: redis-exporter
    spec:
      ports:
        - port: 6379
          targetPort: 6379
          name: redis
      selector:
        k8s: redis-exporter
    
    
    
    
    
    [root@\ k8s-m-01~/redis]# kubectl get pods
    NAME                                        READY   STATUS    RESTARTS   AGE
    redis-6b9dd9c556-2dllt                      1/1     Running   0          49s
    
    
    [root@\ k8s-m-01~/redis]# kubectl get deployments.apps 
    NAME                        READY   UP-TO-DATE   AVAILABLE   AGE
    redis                       1/1     1            1           64s

2，部署expertor，从而创建一个metrics接口

[root@\ k8s-m-01~/redis]# vim exprter_redis.yaml
    kind: Deployment
    apiVersion: apps/v1
    metadata:
      name: redis-exporter-server
    spec:
      selector:
        matchLabels:
          k8s: redis-exporter-server
      template:
        metadata:
          annotations:
            prometheus.io/scrape: "true"
            prometheus.io/port: "9121"
          labels:
            k8s: redis-exporter-server
        spec:
          containers:
            - name: redis
              image: oliver006/redis_exporter
              args:
                - "--redis.addr=redis://redis-svc.default.svc.cluster.local:6379"
              ports:
                - containerPort: 9121
    ---
    kind: Service
    apiVersion: v1
    metadata:
      name: redis-exporter-server
      labels:
        k8s: redis-exporter-server-svc
    spec:
      ports:
        - port: 9121
          targetPort: 9121
          name: redis-exporter
      selector:
        k8s: redis-exporter-server
    
    
    
    
    [root@\ k8s-m-01~/redis]# kubectl apply -f exprter_redis.yaml 
    deployment.apps/redis-exporter-server created
    service/redis-exporter-server created
    
    [root@\ k8s-m-01~/redis]# kubectl get svc
    NAME                        TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)    AGE
    redis-exporter-server       ClusterIP   10.111.0.77    <none>        9121/TCP   11s
    redis-svc                   ClusterIP   10.111.17.45   <none>        6379/TCP   3m37s
    
    
    [root@\ k8s-m-01~/redis]# kubectl get pods
    NAME                                        READY   STATUS    RESTARTS   AGE
    nginx-prometheus-exporter-86bc575bb-2mgh8   1/1     Running   0          44m
    redis-6b9dd9c556-2dllt                      1/1     Running   0          3m43s
    redis-exporter-server-6f6476f86f-dwbtq      1/1     Running   0          17s

3，创建ServiceMonitor，注入promethu

[root@\ k8s-m-01~/redis]# vim servicemonitor_redis.yaml
    kind: ServiceMonitor
    apiVersion: monitoring.coreos.com/v1
    metadata:
      labels:
        app: redis-prometheus-exporter-servicemonitor
        deploy: redis-exporter-servicemonitor
      name: redis-monitor
      namespace: monitoring
    spec:
      endpoints:
        - interval: 3s
          port: redis-exporter
      selector:
        matchLabels:
          k8s: redis-exporter-server-svc
      namespaceSelector:
        matchNames:
          - "default"
    
    
    
    
    [root@\ k8s-m-01~/redis]# kubectl apply -f servicemonitor_redis.yaml 
    
    [root@\ k8s-m-01~/redis]# kubectl get servicemonitor -n monitoring 
    NAME                      AGE
    ... ...
    redis-monitor             43s

4，检测  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTA3OTc3_size_16_color_FFFFFF_t_70]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTA3OTc3_size_16_color_FFFFFF_t_70 1]  
5，增加grafana模板  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTA3OTc3_size_16_color_FFFFFF_t_70 2]  
6， 进入监控看大屏

插入刚刚官网的id号  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTA3OTc3_size_16_color_FFFFFF_t_70 3]  
7.监控页面  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTA3OTc3_size_16_color_FFFFFF_t_70 4]

参考链接 ：  
prometheus监控redis（无metric接口） ：  
https://www.jianshu.com/p/72cc0e0ceb21  
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