apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: alloy
  namespace: observability
  labels:
    app: alloy
spec:
  selector:
    matchLabels:
      app: alloy
  template:
    metadata:
      labels:
        app: alloy
    spec:
      serviceAccountName: alloy
      hostNetwork: true
      hostPID: true
      dnsPolicy: ClusterFirstWithHostNet
      containers:
        - name: alloy
          image: grafana/alloy:v1.5.1
          args:
            - run
            - /etc/alloy/config.alloy
            - --storage.path=/var/lib/alloy
            - --server.http.listen-addr=0.0.0.0:12345
          ports:
            - name: http-metrics
              containerPort: 12345
              protocol: TCP
            - name: otlp-grpc
              containerPort: 4317
              protocol: TCP
            - name: otlp-http
              containerPort: 4318
              protocol: TCP
          env:
            - name: HOSTNAME
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
          securityContext:
            privileged: true
            runAsUser: 0
          resources:
            requests:
              cpu: 100m
              memory: 256Mi
            limits:
              cpu: 500m
              memory: 512Mi
          volumeMounts:
            - name: config
              mountPath: /etc/alloy
            - name: varlog
              mountPath: /var/log
              readOnly: true
            - name: varlibdockercontainers
              mountPath: /var/lib/docker/containers
              readOnly: true
            - name: etcmachineid
              mountPath: /etc/machine-id
              readOnly: true
      tolerations:
        - effect: NoSchedule
          operator: Exists
      volumes:
        - name: config
          configMap:
            name: alloy-config
        - name: varlog
          hostPath:
            path: /var/log
        - name: varlibdockercontainers
          hostPath:
            path: /var/lib/docker/containers
        - name: etcmachineid
          hostPath:
            path: /etc/machine-id

---
apiVersion: v1
kind: Service
metadata:
  name: alloy
  namespace: observability
  labels:
    app: alloy
spec:
  type: ClusterIP
  ports:
    - port: 12345
      targetPort: http-metrics
      protocol: TCP
      name: http-metrics
    - port: 4317
      targetPort: otlp-grpc
      protocol: TCP
      name: otlp-grpc
    - port: 4318
      targetPort: otlp-http
      protocol: TCP
      name: otlp-http
  selector:
    app: alloy