otel-collector-k8s-deployment.yaml

---
apiVersion: v1
kind: ConfigMap
metadata:
  name: collector-config
data:
  collector.yaml: |
    receivers:
      prometheus:
        config:
          scrape_configs:
          - job_name: "otel-collector"
            kubernetes_sd_configs:
            - role: pod
            relabel_configs:
            - source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_scrape]
              regex: "true"
              action: keep
    processors:
    exporters:
      logging:
        loglevel: debug
    service:
      pipelines:
        metrics:
          receivers: [prometheus]
          processors: []
          exporters: [logging]
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: opentelemetrycollector
spec:
  replicas: 1
  selector:
    matchLabels:
      app.kubernetes.io/name: opentelemetrycollector
  template:
    metadata:
      labels:
        app.kubernetes.io/name: opentelemetrycollector
    spec:
      containers:
        - name: otelcol
          args:
            - --config=/conf/collector.yaml
          image: otel/opentelemetry-collector:latest
          volumeMounts:
            - mountPath: /conf
              name: collector-config
      volumes:
        - configMap:
            items:
              - key: collector.yaml
                path: collector.yaml
            name: collector-config
          name: collector-config
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  namespace: default
  name: service-reader
rules:
  - apiGroups: [""] # "" indicates the core API group
    resources: ["services","pods"]
    verbs: ["get", "watch", "list"]