apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: alloy
  namespace: observability
  labels:
    app.kubernetes.io/name: alloy
    app.kubernetes.io/component: collector
    app.kubernetes.io/part-of: observability
spec:
  selector:
    matchLabels:
      app: alloy
  template:
    metadata:
      labels:
        app: alloy
        app.kubernetes.io/name: alloy
        app.kubernetes.io/component: collector
        app.kubernetes.io/part-of: observability
      annotations:
        prometheus.io/scrape: "true"
        prometheus.io/port: "12345"
    spec:
      serviceAccountName: alloy
      tolerations:
        - operator: Exists
      containers:
        - name: alloy
          image: grafana/alloy:v1.19.0
          args:
            - run
            - /etc/alloy/config.alloy
            - --storage.path=/var/lib/alloy/data
            - --server.http.listen-addr=0.0.0.0:12345
            - --disable-reporting
          env:
            # Used by config.alloy to tail only the pods on the current node.
            - name: HOSTNAME_NODE
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
          ports:
            - name: http
              containerPort: 12345
          resources:
            requests:
              cpu: 50m
              memory: 128Mi
            limits:
              cpu: "1"
              memory: 512Mi
          readinessProbe:
            httpGet:
              path: /-/ready
              port: http
            initialDelaySeconds: 10
            periodSeconds: 10
          volumeMounts:
            - name: config
              mountPath: /etc/alloy
            - name: storage
              mountPath: /var/lib/alloy
      volumes:
        - name: config
          configMap:
            name: alloy-config
        - name: storage
          # Read positions persisted on the node: no full log re-ingestion
          # when the pod restarts.
          hostPath:
            path: /var/lib/alloy
            type: DirectoryOrCreate