dellhw_exporter sets iDrac Hostname, OS and OS version to those of container

[cgrijs]

Hi,

We are running dellhw_exporter from the helm chart (v0.2.12) and we see that in the iDrac, the Host Name, Operating System and Operating System Version now reflect on what is running in the pod (dellhw-exporter-xxxxx; Rocky Linux; release 9.4 (Blue Onyx) Kernel 5.15.0-112-generic (x86_64)) instead of what is running on the hardware.

[galexrt]

Could you please post an example metrics output where the pod info is shown instead of the hosts info?

[matanbaruch]

Hi,

We are running dellhw_exporter from the helm chart (v0.2.12) and we see that in the iDrac, the Host Name, Operating System and Operating System Version now reflect on what is running in the pod (dellhw-exporter-xxxxx; Rocky Linux; release 9.4 (Blue Onyx) Kernel 5.15.0-112-generic (x86_64)) instead of what is running on the hardware.

Could you please post an example metrics output where the pod info is shown instead of the hosts info?

I think he means this

I think we should set the System Host Name, to the actual hostname of the system and not the pod. This can be done probably with downward API
https://kubernetes.io/docs/concepts/workloads/pods/downward-api/

[galexrt]

@cgrijs @matanbaruch I have pushed a change to allow specifying additionalVolumes: and additionalVolumeMounts: in the Helm chart.

This in combination with overriding the HOSTNAME env var might help fix at least the iDrac hostname to be set correctly.

# -- Additional environments to be added to the dellhw_exporter container, use this to configure the exporter (see https://github.com/galexrt/dellhw_exporter/blob/main/docs/configuration.md#environment-variables)
additionalEnv: []
  # Uncomment to set the hostname to the node's name in the exporter.
  #- name: HOSTNAME
  #  valueFrom:
  #    fieldRef:
  #      fieldPath: spec.nodeName
#[...]

# -- Additional volumes to be mounted in the dellhw_exporter container.
additionalVolumes: []
  # Mount the host's `/etc/os-release` file to the container's `/etc/os-release` path.
  #- name: host-os-release
  #  hostPath:
  #    path: /etc
  #    type: FileOrCreate

# -- Additional volume mounts for the dellhw_exporter container.
additionalVolumeMounts: []
  # Mount the host's `/etc/os-release` file to the container's `/etc/os-release` path.
  #- name: host-os-release
  #  mountPath: /etc/os-release
  #  subPath: os-release
  #  readOnly: true

Please let me know if setting the HOSTNAME env var helps with the iDrac hostname, and mounting the /etc/os-release file the operating system info in the iDrac GUI/CLI.

[matanbaruch]

@galexrt will check it out!

[matanbaruch]

@cgrijs @matanbaruch I have pushed a change to allow specifying additionalVolumes: and additionalVolumeMounts: in the Helm chart.

This in combination with overriding the HOSTNAME env var might help fix at least the iDrac hostname to be set correctly.

# -- Additional environments to be added to the dellhw_exporter container, use this to configure the exporter (see https://github.com/galexrt/dellhw_exporter/blob/main/docs/configuration.md#environment-variables)
additionalEnv: []
  # Uncomment to set the hostname to the node's name in the exporter.
  #- name: HOSTNAME
  #  valueFrom:
  #    fieldRef:
  #      fieldPath: spec.nodeName
#[...]

# -- Additional volumes to be mounted in the dellhw_exporter container.
additionalVolumes: []
  # Mount the host's `/etc/os-release` file to the container's `/etc/os-release` path.
  #- name: host-os-release
  #  hostPath:
  #    path: /etc
  #    type: FileOrCreate

# -- Additional volume mounts for the dellhw_exporter container.
additionalVolumeMounts: []
  # Mount the host's `/etc/os-release` file to the container's `/etc/os-release` path.
  #- name: host-os-release
  #  mountPath: /etc/os-release
  #  subPath: os-release
  #  readOnly: true

Please let me know if setting the HOSTNAME env var helps with the iDrac hostname, and mounting the /etc/os-release file the operating system info in the iDrac GUI/CLI.

Works great can be closed.