# 部署 DaemonSet（节点级指标采集）
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: otel-collector-daemonset
  namespace: monitoring
  labels:
    app: otel-collector-daemonset
spec:
  selector:
    matchLabels:
      app: otel-collector-daemonset
  template:
    metadata:
      labels:
        app: otel-collector-daemonset
    spec:
      serviceAccountName: otel-collector
      hostNetwork: false  # 无需主机网络
      containers:
        - name: otel-collector
          image: otel/opentelemetry-collector-contrib:latest
          args: ["--config=/etc/otel-collector/config.yaml"]
          # 挂载宿主机目录（采集节点指标）
          volumeMounts:
            - name: otel-config
              mountPath: /etc/otel-collector
            - name: proc
              mountPath: /proc
              readOnly: true
            - name: sys
              mountPath: /sys
              readOnly: true
            - name: rootfs
              mountPath: /rootfs
              readOnly: true
          # 资源限制（按需调整）
          resources:
            limits:
              cpu: 500m
              memory: 512Mi
            requests:
              cpu: 100m
              memory: 256Mi
      volumes:
        - name: otel-config
          configMap:
            name: otel-collector-config
        - name: proc
          hostPath:
            path: /proc
        - name: sys
          hostPath:
            path: /sys
        - name: rootfs
          hostPath:
            path: /