kube-dra-example-driver

An example [Dynamic Resource Allocation (DRA)][dra] driver built on the kube-dra Rust library. It runs as a node-local kubelet plugin (deployed as a DaemonSet) and serves as a reference for building DRA drivers with kube-dra.

Status: early development. The driver registers itself as a DRA kubelet plugin with kubelet. Device advertisement (ResourceSlice publishing) and claim preparation (NodePrepareResources) are still in progress, so no device is allocatable end-to-end yet.

Prerequisites

• Docker
• kind
• kubectl
• Helm
• just

DRA is GA in Kubernetes 1.34, so the default kindest/node:v1.34.0 image needs no feature-gate configuration. Older node images require enabling the DynamicResourceAllocation feature gate on the API server, scheduler, and kubelet.

Working cluster setup

Bring up a cluster with the driver deployed in a single command:

just deploy

deploy runs the full pipeline:

• builds the container image for your host's platform → ghcr.io/nubicle/example-driver:dev.
• creates a kind cluster named kube-dra on a Kubernetes 1.34 node image.
• loads the image into the cluster's nodes.
• installs the chart into the example-driver namespace and waits for the kubelet-plugin to become ready.

Verify the plugin came up and registered:

kubectl -n example-driver get pods
kubectl -n example-driver logs -l app.kubernetes.io/instance=example-driver

Confirm the DRA API is available:

kubectl get resourceslices

Run just (with no target) to list available recipes.

See also

• kube-dra — the Rust library this driver is built on.