6.2. モニタリングスタックからメトリクスを受信するための設定

クラスター内のモニタリングスタックからメトリクスをスクレイプするための OpenTelemetry Collector CR の例

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: otel-collector
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-monitoring-view 1
subjects:
  - kind: ServiceAccount
    name: otel-collector
    namespace: observability
---
kind: ConfigMap
apiVersion: v1
metadata:
  name: cabundle
  namespce: observability
  annotations:
    service.beta.openshift.io/inject-cabundle: "true" 2
---
apiVersion: opentelemetry.io/v1beta1
kind: OpenTelemetryCollector
metadata:
  name: otel
  namespace: observability
spec:
  volumeMounts:
    - name: cabundle-volume
      mountPath: /etc/pki/ca-trust/source/service-ca
      readOnly: true
  volumes:
    - name: cabundle-volume
      configMap:
        name: cabundle
  mode: deployment
  config:
    receivers:
      prometheus: 3
        config:
          scrape_configs:
            - job_name: 'federate'
              scrape_interval: 15s
              scheme: https
              tls_config:
                ca_file: /etc/pki/ca-trust/source/service-ca/service-ca.crt
              bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
              honor_labels: false
              params:
                'match[]':
                  - '{__name__="<metric_name>"}' 4
              metrics_path: '/federate'
              static_configs:
                - targets:
                  - "prometheus-k8s.openshift-monitoring.svc.cluster.local:9091"
    exporters:
      debug: 5
        verbosity: detailed
    service:
      pipelines:
        metrics:
          receivers: [prometheus]
          processors: []
          exporters: [debug]