Flow: grafana-agent deployed with helm unable to collect node telemetry (prometheus.exporter.unix)

[pcecot]

agent version: v0.32.1
helm chart: grafana-agent-0.10.0

Collecting the node telemetry using prometheus.exporter.unix does not work. I see the following in the container logs:

ts=2023-04-06T08:12:50.628942484Z level=error component=prometheus.exporter.unix msg="collector failed" name=systemd duration_seconds=0.000108774 err="couldn't get dbus connection: dial unix /run/systemd/private: connect: no such file or directory"
ts=2023-04-06T08:12:50.634454633Z level=error component=prometheus.exporter.unix collector=ethtool msg="ethtool link info error" err="no such device" device=docker0 errno=19
ts=2023-04-06T08:12:50.63446389Z level=error component=prometheus.exporter.unix collector=ethtool msg="ethtool driver info error" err="no such device" device=docker0 errno=19
ts=2023-04-06T08:12:50.634470465Z level=error component=prometheus.exporter.unix collector=ethtool msg="ethtool stats error" err="no such device" device=docker0 errno=19
ts=2023-04-06T08:12:50.634484609Z level=error component=prometheus.exporter.unix collector=ethtool msg="ethtool link info error" err="no such device" device=ens192 errno=19
ts=2023-04-06T08:12:50.634489309Z level=error component=prometheus.exporter.unix collector=ethtool msg="ethtool driver info error" err="no such device" device=ens192 errno=19
ts=2023-04-06T08:12:50.634494074Z level=error component=prometheus.exporter.unix collector=ethtool msg="ethtool stats error" err="no such device" device=ens192 errno=19

Configuration used:

      prometheus.exporter.unix {
        set_collectors = ["cpu", "disk", "ethtool", "systemd"]
        procfs_path = "/host/proc"
        sysfs_path = "/host/sys"
        rootfs_path = "/host/root"
      }

Helm chart values:

controller:
  securityContext:
    privileged: true
    runAsUser: 0 
  volumes:
    extra:
      - name: rootfs
        hostPath:
          path: /
      - name: sysfs
        hostPath:
          path: /sys
      - name: procfs
        hostPath:
          path: /proc
agent:
  mounts:
    dockercontainers: true
    extra: 
      - name: rootfs
        mountPath: /host/root
        readOnly: true
      - name: sysfs
        mountPath: /host/sys
        readOnly: true
      - name: procfs
        mountPath: /host/proc
        readOnly: true

Any suggestion what am I missing?

[pcecot]

Anyone was successful in running Grafana Agent Flow with prometheus.exporter.unix to scrape k8 node (host) metrics? If yes, could you please share configuration used as I still cannot make the above work.

On the very same setup I am able to run standalone prometheus-node-exporter and have Grafana Agent Flow scrape it, however I want to use the integration instead.