apiVersion: apps/v1
kind: Deployment
metadata:
  name: otel-collector
  namespace: meta
spec:
  replicas: 1
  selector:
    matchLabels:
      app: otel-collector
  template:
    metadata:
      labels:
        app: otel-collector
    spec:
      containers:
        - name: otel-collector
          image: otel/opentelemetry-collector-contrib:0.81.0
          args: ["--config=/etc/otel/otel-collector-config.yaml"]
          volumeMounts:
            - name: otel-config
              mountPath: /etc/otel
      volumes:
        - name: otel-config
          configMap:
            name: otel-collector-config
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: otel-collector-config
  namespace: meta
data:
  otel-collector-config.yaml: |
    receivers:
      otlp:
        protocols:
          grpc:
            endpoint: 0.0.0.0:4317
          http:
            endpoint: 0.0.0.0:4318

    processors:
      spanmetrics:
        dimensions:
          - name: operation
            default: unknown
        metrics_exporter: prometheus
        aggregation_temporality: "AGGREGATION_TEMPORALITY_CUMULATIVE"

    exporters:
      otlp:
        endpoint: tempo:4317
        tls:
          insecure: true
      prometheus:
        endpoint: "0.0.0.0:8889"

    service:
      pipelines:
        traces:
          receivers: [otlp]
          processors: [spanmetrics]
          exporters: [otlp]
        metrics:
          receivers: []
          exporters: [prometheus]
          processors: []
---
apiVersion: v1
kind: Service
metadata:
  name: otel-collector
  namespace: meta
spec:
  ports:
    - name: grpc
      port: 4317
      targetPort: 4317
    - name: http
      port: 4318
      targetPort: 4318
  selector:
    app: otel-collector