prometheus监控k8s的配置文件该怎么写

以下是一个简单的示例配置文件，用于使用 Prometheus 监控 Kubernetes 集群：

global:
  scrape_interval: 1m
  evaluation_interval: 1m
  external_labels:
    monitor: 'prometheus'

rule_files:
  - /etc/prometheus/rules/*.rules.yml

scrape_configs:
  - job_name: 'kubernetes-apiservers'
    scheme: https
    tls_config:
      ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
      cert_file: /var/run/secrets/kubernetes.io/serviceaccount/client.crt
      key_file: /var/run/secrets/kubernetes.io/serviceaccount/client.key
    bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
    kubernetes_sd_configs:
      - role: endpoints
        namespaces:
          names:
            - default
    relabel_configs:
      - source_labels: [__meta_kubernetes_namespace, __meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
        action: keep
        regex: default;kubernetes;https
      - source_labels: [__meta_kubernetes_namespace, __meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
        action: replace
        target_label: __address__
        regex: ([^:]+)(?::\d+)?;[^;]+;https
        replacement: kubernetes.default.svc:443
      - source_labels: [__meta_kubernetes_namespace, __meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
        action: replace
        target_label: __param_target
        regex: ([^:]+)(?::\d+)?;[^;]+;https
        replacement: /healthz
      - action: labelmap
        regex: __meta_kubernetes_pod_label_(.+)
      - source_labels: [__meta_kubernetes_namespace, __meta_kubernetes_pod_name]
        action: replace
        target_label: kubernetes_pod_name
        regex: (.+);(.+)
      - source_labels: [__meta_kubernetes_namespace]
        action: replace
        target_label: kubernetes_namespace
      - source_labels: [__meta_kubernetes_service_name]
        action: replace
        target_label: kubernetes_service_name

  - job_name: 'kubernetes-nodes'
    scheme: https
    tls_config:
      ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
      cert_file: /var/run/secrets/kubernetes.io/serviceaccount/client.crt
      key_file: /var/run/secrets/kubernetes.io/serviceaccount/client.key
    bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
    kubernetes_sd_configs:
      - role: node
    relabel_configs:
      - source_labels: [__address__]
        target_label: __param_target
        replacement: /metrics
      - source_labels: [__param_target]
        target_label: instance
      - target_label: __address__
        replacement: kubernetes.default.svc:443
      - source_labels: [__meta_kubernetes_node_label_kubernetes_io_hostname]
        target_label: instance
      - action: labelmap
        regex: __meta_kubernetes_node_label_(.+)
      - source_labels: [__meta_kubernetes_namespace]
        action: replace
        target_label: kubernetes_namespace

此配置文件使用 Kubernetes SD 配置来动态发现和监控 Kubernetes API 服务器和节点。要使用此配置文件，请将其保存为 `prometheus.yml` 并将其部署到 Prometheus 服务器。