node-exporter

https://github.com/prometheus/node_exporter

Fluent Bit

fluent-bit-values.yaml
# host 네트워크를 사용하면 container의 IP가 host의 IP로 설정됩니다.
hostNetwork: true
dnsPolicy: ClusterFirstWithHostNet

extraPorts:
  - name: http-metrics
    containerPort: 9100
    protocol: TCP
    port: 9100 # Service port

extraVolumes:
  - name: proc
    hostPath:
      path: /proc
  - name: sys
    hostPath:
      path: /sys

extraVolumeMounts:
  - name: proc
    mountPath: /host/proc
    readOnly: true
  - name: sys
    mountPath: /host/sys
    readOnly: true

[INPUT]
    name            node_exporter_metrics
    tag             node_metrics
    scrape_interval 5
    path.procfs     /host/proc
    path.sysfs      /host/sys

[OUTPUT]
    name      prometheus_exporter
    match     node_metrics
    host      0.0.0.0
    port      9100
    add_label app fluent-bit

apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: fluent-bit-node-exporter
  namespace: monitoring
spec:
  # jobLable을 선언하지 않았기 때문에 매칭되는 Service의 이름인 fluent-bit이 사용됩니다.
  endpoints:
    - port: http-metrics
      path: /metrics
      scheme: http
      interval: 15s
  selector:
    matchLabels:
      app.kubernetes.io/instance: fluent-bit
      app.kubernetes.io/name: fluent-bit

node-exporter​

Fluent Bit​

node-exporter

Fluent Bit