Feat/gke cos training overlays skyhook#340
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Add GKE Container-Optimized OS (COS) overlay recipes for H100 training workloads. Key differences from EKS: - GPU driver disabled (GKE preinstalls on COS nodes) - COS-specific host paths (/home/kubernetes/bin/nvidia) - Toolkit with RUNTIME_CONFIG_SOURCE=file for COS - gdrcopy disabled (not supported on COS host-managed driver) - Prometheus storage uses standard-rwo (GKE PD CSI) - DRA driver with COS nvidiaDriverRoot - Skyhook uses no-op (COS has immutable rootfs) - No AWS components (EFA, EBS CSI) Overlay chain: base → gke-cos → gke-cos-training → h100-gke-cos-training Optional: h100-gke-cos-training-kubeflow (adds Kubeflow Trainer) New files: - recipes/overlays/gke-cos-training.yaml - recipes/overlays/h100-gke-cos-training.yaml - recipes/overlays/h100-gke-cos-training-kubeflow.yaml - recipes/components/gpu-operator/values-gke-cos-training.yaml Updated files: - recipes/overlays/gke-cos.yaml (storage, DRA, constraints, validation) - recipes/components/gpu-operator/values-gke-cos.yaml (toolkit, gdrcopy)
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This was referenced May 21, 2026
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Summary
Created a new skyhook-customization specific for GKE COS. Will work for h100 or gb200
Motivation / Context
Fixes:
Related:
Type of Change
Component(s) Affected
cmd/aicr,pkg/cli)cmd/aicrd,pkg/api,pkg/server)pkg/recipe)pkg/bundler,pkg/component/*)pkg/collector,pkg/snapshotter)pkg/validator)pkg/errors,pkg/k8s)docs/,examples/)Implementation Notes
Testing
# Commands run (prefer `make qualify` for non-trivial changes) make qualifyRisk Assessment
Rollout notes:
Checklist
make testwith-race)make lint)git commit -S) — GPG signing info