Kube-Prometheus修改拉取时间

1.修改globle 全局拉取时间,修改prometheus-prometheus.yaml文件

添加以下三个参数

刮擦间隔：5s 刮擦超时：30秒 评价间隔：15s

[root@k8s-master kube-prometheus]# vim manifests/prometheus-prometheus.yaml

apiVersion: monitoring.coreos.com/v1
kind: Prometheus
metadata:
  labels:
    app.kubernetes.io/component: prometheus
    app.kubernetes.io/instance: k8s
    app.kubernetes.io/name: prometheus
    app.kubernetes.io/part-of: kube-prometheus
    app.kubernetes.io/version: 2.36.0
  name: k8s
  namespace: monitoring
spec:
  alerting:
    alertmanagers:
    - apiVersion: v2
      name: alertmanager-main
      namespace: monitoring
      port: web
  retention: 7d

  scrapeInterval: 5s
  scrapeTimeout: 30s
  evaluationInterval: 15s
  storage:
    volumeClaimTemplate:
      spec:
        storageClassName: prometheus-data-db
        accessModes: ["ReadWriteOnce"]
        resources:
          requests:
            storage: 100Gi

  enableFeatures: []
  externalLabels: {}
  
  
[root@k8s-master kube-prometheus]# kubectl apply -f manifests/prometheus-prometheus.yaml
prometheus.monitoring.coreos.com/k8s unchanged

2.修改prometheus-podmonitor.yaml配置文件由15s变为5s

prometheus-podmonitor.yaml这个用于pod自动发现的。

[root@k8s-master kube-prometheus]# vim manifests/prometheus-podmonitor.yaml
apiVersion: monitoring.coreos.com/v1
kind: PodMonitor
metadata:
  labels:
    jmeter_mode: base
  name: jmeter # 最终显示在promtheus中的job名称
  namespace: monitoring
spec:
  podMetricsEndpoints:
  - interval: 5s
    path: /metrics
    targetPort: 9270
  namespaceSelector:
    matchNames:
    - jmeter
  selector:
    matchLabels:
      jmeter_mode: base
      
[root@k8s-master kube-prometheus]# kubectl apply -f manifests/prometheus-podmonitor.yaml
podmonitor.monitoring.coreos.com/jmeter configured

3.添加物理机监控的target目标服务器监控

[root@k8s-master kube-prometheus]# cat  prometheus-additional.yaml
- job_name: jmeter-base-test20220611
  scrape_interval: 5s
  scrape_timeout: 15s
  metrics_path: /metrics
  scheme: http
  static_configs:
  - targets:
    - 10.244.1.25:9270

4.修改Blackbox出口商、舱单/blackboxExporter-serviceMonitor.yaml

[root@k8s-master kube-prometheus]# cat  manifests/blackboxExporter-serviceMonitor.yaml
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  labels:
    app.kubernetes.io/component: exporter
    app.kubernetes.io/name: blackbox-exporter
    app.kubernetes.io/part-of: kube-prometheus
    app.kubernetes.io/version: 0.21.0
  name: blackbox-exporter
  namespace: monitoring
spec:
  endpoints:
  - bearerTokenFile: /var/run/secrets/kubernetes.io/serviceaccount/token
    interval: 5s
    path: /metrics
    port: https
    scheme: https
    tlsConfig:
      insecureSkipVerify: true
  selector:
    matchLabels:
      app.kubernetes.io/component: exporter
      app.kubernetes.io/name: blackbox-exporter
      app.kubernetes.io/part-of: kube-prometheus
[root@k8s-master kube-prometheus]# kubectl apply -f   manifests/blackboxExporter-serviceMonitor.yaml
Warning: resource servicemonitors/blackbox-exporter is missing the kubectl.kubernetes.io/last-applied-configuration annotation which is required by kubectl apply. kubectl apply should only be used on resources created declaratively by either kubectl create --save-config or kubectl apply. The missing annotation will be patched automatically.
servicemonitor.monitoring.coreos.com/blackbox-exporter configured

5.node-exporter修改

[root@k8s-master kube-prometheus]# kubectl apply -f  manifests/nodeExporter-serviceMonitor.yaml
Warning: resource servicemonitors/node-exporter is missing the kubectl.kubernetes.io/last-applied-configuration annotation which is required by kubectl apply. kubectl apply should only be used on resources created declaratively by either kubectl create --save-config or kubectl apply. The missing annotation will be patched automatically.
servicemonitor.monitoring.coreos.com/node-exporter configured
[root@k8s-master kube-prometheus]# cat  manifests/nodeExporter-serviceMonitor.yaml
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  labels:
    app.kubernetes.io/component: exporter
    app.kubernetes.io/name: node-exporter
    app.kubernetes.io/part-of: kube-prometheus
    app.kubernetes.io/version: 1.3.1
  name: node-exporter
  namespace: monitoring
spec:
  endpoints:
  - bearerTokenFile: /var/run/secrets/kubernetes.io/serviceaccount/token
    interval: 5s
    port: https
    relabelings:
    - action: replace
      regex: (.*)
      replacement: $1
      sourceLabels:
      - __meta_kubernetes_pod_node_name
      targetLabel: instance
    scheme: https
    tlsConfig:
      insecureSkipVerify: true
  jobLabel: app.kubernetes.io/name
  selector:
    matchLabels:
      app.kubernetes.io/component: exporter
      app.kubernetes.io/name: node-exporter
      app.kubernetes.io/part-of: kube-prometheus