gpu_observability_chart_version

Description

The gpu_observability_chart_version parameter pins the Helm chart version for the NVIDIA DCGM exporter installed by gpu_observability_enable. Change this value to roll forward to a CVE hotfix or driver-compatibility release without waiting for a Convox rack version that bumps the default.

Default Value

The default value is the chart version that ships with this rack release, currently 4.8.1 (image tag 4.5.2-4.8.1-distroless).

Use Cases

CVE response: When NVIDIA publishes a security fix in a new chart patch release (e.g., 4.8.1 → 4.8.2), pin to the patched version immediately rather than waiting for the next Convox rack release.
Driver compatibility: If your AMI ships a specific NVIDIA driver version that requires a particular DCGM exporter version for full metric coverage, pin to the matching chart.
Rollback after an issue: If a chart patch introduces an issue on your workload, pin back to the prior known-good version while you investigate.

Setting Parameters

To pin to a specific chart version:

$ convox rack params set gpu_observability_chart_version=4.8.2 -r rackName
Setting parameters... OK

To revert to the rack default:

$ convox rack params set gpu_observability_chart_version=4.8.1 -r rackName
Setting parameters... OK

You must enable gpu_observability_enable for the chart to be installed at all. Pinning the version while observability is disabled is a no-op until you enable it.

Additional Information

Changing this value is an advanced operation. Most racks should stay on the default chart version that ships with the rack release, which Convox tests for clean install and uninstall.
Stay on the same chart major version (e.g., within 4.x) when pinning. A new chart major may introduce custom resources or admission webhooks that the rack does not yet handle, which can break clean uninstall when you disable observability or downgrade.
The default chart version is verified to remove all of its resources cleanly when observability is disabled. Before adopting a new chart major, wait for a Convox rack release that bumps the default rather than pinning across a major version yourself.
Always verify the chart you pin to is published at the NVIDIA upstream Helm repo: https://nvidia.github.io/dcgm-exporter/helm-charts. Convox does not vendor the chart.

gpu_observability_enable: The enable switch that controls whether the chart is installed at all.
nvidia_device_plugin_enable: Required prerequisite for gpu_observability_enable=true.

Version Requirements

This feature requires at least Convox rack version 3.24.6.