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feat(pod): allow Karpenter to consume open ODCR and also reserved ids #11623

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feat(pod): allow Karpenter to consume open ODCR and also reserved ids #11623

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17 changes: 17 additions & 0 deletions cluster/node-pools/worker-karpenter/provisioners.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -92,6 +92,17 @@ spec:
# {{ end}}
# {{ end}}
#{{ end}}
# Discover EC2 Capacity Reservations (ODCRs, Capacity Blocks for ML) tagged for this cluster, so
# Karpenter can launch into them explicitly (karpenter.sh/capacity-type: reserved). Tag-scoped like
# securityGroupSelectorTerms: inert until a reservation carries the tag, so consuming a reservation
# is self-service (tag it at purchase), with no per-cluster configuration. Rendered only where the
# ReservedCapacity feature gate is on, so a gate-off cluster's NodeClass carries no reservation
# config at all.
#{{ if eq .Cluster.ConfigItems.karpenter_feature_reserved_capacity "true" }}
capacityReservationSelectorTerms:
- tags:
karpenter.sh/discovery: "{{ .Cluster.ID }}/CapacityReservation"
#{{ end }}
userData: |
{{ .Values.UserData | indent 4 }}
---
Expand Down Expand Up @@ -281,6 +292,12 @@ spec:
- "spot"
#{{ end }}
- "on-demand"
#{{ if eq .Cluster.ConfigItems.karpenter_feature_reserved_capacity "true" }}
# reserved = Capacity Reservations discovered via the NodeClass's
# capacityReservationSelectorTerms. Karpenter prefers a matching reservation (priced as
# already-paid) and falls back to on-demand when it is exhausted.
- "reserved"
#{{ end }}
- key: "kubernetes.io/arch"
operator: In
values: ["arm64", "amd64"]
Expand Down