2dd07e9242
There was one flake:
expected pod to be pod is scheduled, got instead:
...
status:
conditions:
- lastProbeTime: null
lastTransitionTime: "2025-07-06T12:08:54Z"
message: 'running "DynamicResources" filter plugin: pool network-attached is invalid:
duplicate device name dev-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx0000'
The root cause was that the test produced device names which were unique within
their slice, but not within the pool. This didn't matter for the test itself,
but for tests running concurrently of after it, because those slices were also
not cleaned up properly.
Timing in pull-kubernetes-e2e-gce also was different.
Overview
The tests in this directory cover dynamic resource allocation support in Kubernetes. They do not test the correct behavior of arbitrary dynamic resource allocation drivers.
If such a driver is needed, then the in-tree test/e2e/dra/test-driver is used, with a slight twist: instead of deploying that driver directly in the cluster, the necessary sockets for interaction with kubelet (registration and dynamic resource allocation) get proxied into the e2e.test binary. This reuses the work done for CSI mock testing. The advantage is that no separate images are needed for the test driver and that the e2e test has full control over all gRPC calls, in case that it needs that for operations like error injection or checking calls.
Cluster setup preparation
The container runtime must support CDI. CRI-O supports CDI starting from release 1.23, Containerd supports CDI starting from release 1.7. To bring up a Kind cluster with Containerd, two things are needed:
NB: Kind switched to use worker-node base image with Containerd 1.7 by default starting from release 0.20, build kind from latest main branch sources or use Kind release binary 0.20 or later.
Build kind node image
After building Kubernetes, in Kubernetes source code tree build new node image:
$ kind build node-image --image dra/node:latest $(pwd)
Bring up a Kind cluster
$ kind create cluster --config test/e2e/dra/kind.yaml --image dra/node:latest
Run tests
- Build ginkgo
$ make ginkgo
- Run e2e tests for the
Dynamic Resource Allocationfeature:
$ KUBECONFIG=~/.kube/config _output/bin/ginkgo -p -v -focus=Feature:DynamicResourceAllocation ./test/e2e