prometheus监控k8s所有资源的配置文件该怎么写

要监控 Kubernetes 中的所有资源，可以使用 Prometheus Operator 来创建和管理 Prometheus 和相关的资源。下面是一个示例 Prometheus Operator 配置文件，用于监控 Kubernetes 中的所有资源：

apiVersion: monitoring.coreos.com/v1
kind: Prometheus
metadata:
  name: prometheus
spec:
  replicas: 2
  serviceAccountName: prometheus
  serviceMonitorSelector:
    matchLabels:
      app: kube-prometheus-stack
  ruleSelector:
    matchLabels:
      app: kube-prometheus-stack
  alerting:
    alertmanagers:
    - namespace: monitoring
      name: alertmanager
      port: web
  resources:
    requests:
      memory: 400Mi
  storage:
    volumeClaimTemplate:
      spec:
        storageClassName: standard
        accessModes: ["ReadWriteOnce"]
        resources:
          requests:
            storage: 5Gi
---
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: kube-controller-manager
  namespace: monitoring
  labels:
    app: kube-prometheus-stack
spec:
  selector:
    matchLabels:
      component: kube-controller-manager
  endpoints:
  - port: https-metrics
    scheme: https
    tlsConfig:
      insecureSkipVerify: true
  - port: http-metrics
---
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: kube-scheduler
  namespace: monitoring
  labels:
    app: kube-prometheus-stack
spec:
  selector:
    matchLabels:
      component: kube-scheduler
  endpoints:
  - port: http-metrics
---
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: kube-etcd
  namespace: monitoring
  labels:
    app: kube-prometheus-stack
spec:
  selector:
    matchLabels:
      component: etcd
  endpoints:
  - port: metrics
    scheme: https
    tlsConfig:
      insecureSkipVerify: true
---
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: kube-apiserver
  namespace: monitoring
  labels:
    app: kube-prometheus-stack
spec:
  selector:
    matchLabels:
      component: kube-apiserver
  endpoints:
  - port: https-metrics
    scheme: https
    tlsConfig:
      insecureSkipVerify: true
  - port: http-metrics
---
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: kube-state-metrics
  namespace: monitoring
  labels:
    app: kube-prometheus-stack
spec:
  selector:
    matchLabels:
      app.kubernetes.io/name: kube-state-metrics
  endpoints:
  - port: http-metrics
---
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: node-exporter
  namespace: monitoring
  labels:
    app: kube-prometheus-stack
spec:
  selector:
    matchLabels:
      app.kubernetes.io/name: node-exporter
  endpoints:
  - port: metrics
---
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: kubelet
  namespace: monitoring
  labels:
    app: kube-prometheus-stack
spec:
  selector:
    matchLabels:
      component: kubelet
  endpoints:
  - port: https-metrics
    scheme: https
    tlsConfig:
      insecureSkipVerify: true
  - port: cadvisor
---
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: kube-proxy
  namespace: monitoring
  labels:
    app: kube-prometheus-stack
spec:
  selector:
    matchLabels:
      app.kubernetes.io/name: kube-proxy
  endpoints:
  - port: metrics

这个配置文件会创建一个 Prometheus 实例和一些 ServiceMonitor 资源，用于监控 Kubernetes 中的所有组件和节点。你可以使用 kubectl apply 命令来应用这个配置文件：

kubectl apply -f prometheus.yaml