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Extend the functionality of apply-exit to refresh CDI config #215

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Extend the functionality of apply-exit to refresh CDI config #215

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3 changes: 3 additions & 0 deletions deployments/systemd/hooks-default.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -16,3 +16,6 @@ hooks:
- workdir: "/etc/nvidia-mig-manager"
command: "/bin/bash"
args: ["-x", "-c", "source hooks.sh; apply-exit"]
- workdir: "/etc/nvidia-mig-manager"
command: "/bin/bash"
args: ["-x", "-c", "source hooks.sh; refresh-cdi"]
12 changes: 12 additions & 0 deletions deployments/systemd/hooks.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -122,3 +122,15 @@ function stop_k8s_pods() {
fi
return 0
}

# refresh-cdi triggers the nvidia-cdi-refresh service to regenerate CDI
# specifications, making updated GPU devices available to container runtimes.
function refresh-cdi() {
# Check if nvidia-cdi-refresh.service exists
if systemctl list-unit-files nvidia-cdi-refresh.service --quiet; then
echo "Found nvidia-cdi-refresh.service, calling systemctl..." >&2
if ! systemctl restart nvidia-cdi-refresh.service; then
echo "Error: Failed to start nvidia-cdi-refresh.service" >&2
fi
fi
}