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Aleksei Sviridkin
4a16c84832
Adds hack/check-gpu-operator-variants.bats. The test renders both
package variants with helm template and asserts the resulting
ClusterPolicy spec for the values that this PR cares about:
* ccManager.enabled=false (pinned in values.yaml; upstream v26 default
was flipped to true)
* vgpuDeviceManager.enabled=false (same — and on Ada+/Blackwell the
DaemonSet would crashloop because /sys/class/mdev_bus is empty)
* sandboxWorkloads.defaultWorkload — vm-passthrough on the default
variant, vm-vgpu on the vgpu variant; without these the upstream
'container' default makes either variant a silent no-op on
unlabelled GPU nodes
* vgpuManager.enabled=true on the vgpu variant; driver / devicePlugin
enabled=false on both variants (proprietary host driver path is
out of scope for both passthrough and SR-IOV vGPU)
Negative-tested locally: deleting any of these settings makes the
corresponding test fail, so it actually guards regressions on the
next chart bump.
Also addresses last-pass review comments:
* values-passthrough.yaml: set sandboxWorkloads.defaultWorkload=
vm-passthrough so the default variant is symmetric with the vgpu
variant — neither relies on per-node labels for the variant to
activate. Without this the upstream default 'container' would
apply on unlabelled GPU nodes and vfio-manager would never start.
* values.yaml: rewrite the vgpuDeviceManager comment to lead with
the load-bearing reason (mdev path missing on Ada+/Blackwell)
instead of the secondary 'stays at zero pods on passthrough'
rationalisation.
* docs/gpu-vgpu.md: add a 'Migrating from chart v25.x' subsection
in the Licensing section pointing at the configMapName ->
secretName rename. Old key still works upstream but emits a
deprecation warning; PR body release note already calls this out
but the docs were missing the migration breadcrumb.
Assisted-By: Claude <noreply@anthropic.com>
Signed-off-by: Aleksei Sviridkin <f@lex.la>