[chart]: cluster-proportional-autoscaler

[dylanmtaylor]

Category

Helm Chart

Package/Image/Chart Name

cluster-proportional-autoscaler (chart + underlying image)

Versions

Chart: 1.1.0 (latest). Underlying image: registry.k8s.io/cpa/cluster-proportional-autoscaler:v1.10.0.

Details

cluster-proportional-autoscaler (CPA) is a Kubernetes-SIGs-maintained controller that scales a target deployment proportionally to either the cluster's node count or its core count. It's the standard mechanism for scaling cluster add-ons that need to grow with cluster size — most notably CoreDNS — and is also widely used to scale capacity-reservation pause-pod deployments alongside karpenter / cluster-autoscaler. Both the controller image and the upstream Helm chart are currently absent from the DHI catalog.

The controller is a single small Go binary with a config-map dependency, so a hardened build should port cleanly onto a dhi/golang (build) and dhi/static or dhi/debian-base (runtime) base.

• Source repository: https://github.com/kubernetes-sigs/cluster-proportional-autoscaler (~810 stars, kubernetes-sigs umbrella)
• Dockerfile: https://github.com/kubernetes-sigs/cluster-proportional-autoscaler/blob/master/Dockerfile
• Docker image: registry.k8s.io/cpa/cluster-proportional-autoscaler (current latest v1.10.0)
• Upstream Helm chart: https://github.com/kubernetes-sigs/cluster-proportional-autoscaler/tree/master/charts/cluster-proportional-autoscaler (chart 1.1.0)
• License: Apache 2.0
• Architectures: linux/amd64, linux/arm64

DHI shipping this would unblock CoreDNS-on-DHI deployments at the same time, since CPA is the canonical CoreDNS autoscaler.

Pre-submission Checklist

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