apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: otel-agent
  namespace: otel
  labels:
    app: opentelemetry
    component: otel-agent
spec:
  selector:
    matchLabels:
      app: opentelemetry
      component: otel-agent
  template:
    metadata:
      labels:
        app: opentelemetry
        component: otel-agent
    spec:
      nodeSelector:
        kubernetes.io/os: windows
      containers:
      - command:
          - "C:\\otel\\otelcol.exe"
          - "--config=C:\\otel\\config\\otel-collector-config.yaml"
        image: private-registry/otel/windows-collector:ltsc2019
        name: otel-agent
        resources:
          limits:
            cpu: 500m
            memory: 512Mi
          requests:
            cpu: 100m
            memory: 256Mi
        livenessProbe:
          failureThreshold: 3
          httpGet:
            path: /
            port: 13133
            scheme: HTTP
          initialDelaySeconds: 5
          periodSeconds: 10
          successThreshold: 1
          timeoutSeconds: 3
        ports:
        - containerPort: 55679 # ZPages endpoint.
        - containerPort: 8888  # Metrics.
        - containerPort: 13133 # health check
        - containerPort: 4317  # Default OpenTelemetry grpc receiver port.
          hostPort: 4317
        - containerPort: 4318  # Default OpenTelemetry http receiver port.
          hostPort: 4318
        - containerPort: 6831 # thrift_compact
          hostPort: 6831
          protocol: UDP
        volumeMounts:
        - name: otel-agent-config-vol
          mountPath: "C:\\otel\\config"
      volumes:
        - configMap:
            name: otel-agent-conf
            items:
              - key: otel-agent-config
                path: otel-collector-config.yaml
          name: otel-agent-config-vol
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: otel-agent-conf
  namespace: otel
  labels:
    app: opentelemetry
    component: otel-agent-conf
data:
  otel-agent-config: |
    # How to get data into the Collector; these can be push or pull based
    receivers:
      # Data sources: traces, metrics, logs
      otlp:
        protocols:
          grpc: # port 4317
          http: # port 4318

      # Data sources: traces
      jaeger:
        protocols:
          # grpc:
          # thrift_binary:
          thrift_compact:
          # thrift_http:

    # What to do with received data
    processors:
      batch:
      memory_limiter:
        # 80% of maximum memory up to 2G
        limit_mib: 400
        # 25% of limit up to 2G
        spike_limit_mib: 100
        check_interval: 5s
      probabilistic_sampler:
        hash_seed: 22
        sampling_percentage: 15

    extensions:
      health_check:
        endpoint: "0.0.0.0:13133"
      zpages: {}
      memory_ballast:
        # Memory Ballast size should be max 1/3 to 1/2 of memory.
        size_mib: 64

    # Where to send received data; these can be push or pull based
    exporters:
      # Data sources: traces
      jaeger:
        endpoint: "jaeger-operator-jaeger-collector-headless.jaeger.svc.cluster.local:14250"
        tls:
          insecure: true
      # Data sources: metrics
      prometheus:
        endpoint: "prometheus:8889"
        namespace: "default"

    service:
      extensions: [health_check, zpages, memory_ballast]
      pipelines:
        traces/1:
          receivers: [jaeger, otlp]
          processors: [memory_limiter, batch]
          exporters: [jaeger]