e999d595b1
Refactoring the DRA upgrade/downgrade testing such that it runs as Go test depended on supporting ktesting in the E2E framework. That change worked during presubmit testing, but broke some periodic jobs. Therefore the relevant commits from https://github.com/kubernetes/kubernetes/pull/135664/commits get reverted:c47ad64820DRA e2e+integration: test ResourceSlice controller047682908dktesting: replace Begin/End with TContext.Stepde47714879DRA upgrade/downgrade: rewrite as Go unit test7c7b1e1018DRA e2e: make driver deployment possible in Go unit tests65ef31973cDRA upgrade/downgrade: split out individual test steps47b613edede2e framework: support creating TContext The last one is what must have caused the problem, but the other commits depend on it.
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