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Introduce RequestEviction feature for evicting pods in background

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When the feature is enabled each pod with descheduler.alpha.kubernetes.io/request-evict-only
annotation will have the eviction API error examined for a specific
error code/reason and message. If matched eviction of such a pod will be interpreted
as initiation of an eviction in background.
This commit is contained in:
Jan Chaloupka
2024-08-30 09:07:27 +02:00
parent f115e780d8
commit 3a1a3ff9d8
11 changed files with 1405 additions and 77 deletions
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62
test/run-e2e-tests.sh
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@@ -21,6 +21,12 @@ set -o nounset
# Set to empty if unbound/empty
SKIP_INSTALL=${SKIP_INSTALL:-}
KIND_E2E=${KIND_E2E:-}
CONTAINER_ENGINE=${CONTAINER_ENGINE:-docker}
KIND_SUDO=${KIND_SUDO:-}
SKIP_KUBECTL_INSTALL=${SKIP_KUBECTL_INSTALL:-}
SKIP_KIND_INSTALL=${SKIP_KIND_INSTALL:-}
SKIP_KUBEVIRT_INSTALL=${SKIP_KUBEVIRT_INSTALL:-}
KUBEVIRT_VERSION=${KUBEVIRT_VERSION:-v1.3.0-rc.1}
# Build a descheduler image
IMAGE_TAG=v$(date +%Y%m%d)-$(git describe --tags)
@@ -32,20 +38,35 @@ echo "DESCHEDULER_IMAGE: ${DESCHEDULER_IMAGE}"
# This just runs e2e tests.
if [ -n "$KIND_E2E" ]; then
# If we did not set SKIP_INSTALL
if [ -z "$SKIP_INSTALL" ]; then
K8S_VERSION=${KUBERNETES_VERSION:-v1.31.0}
K8S_VERSION=${KUBERNETES_VERSION:-v1.31.0}
if [ -z "${SKIP_KUBECTL_INSTALL}" ]; then
curl -Lo kubectl https://dl.k8s.io/release/${K8S_VERSION}/bin/linux/amd64/kubectl && chmod +x kubectl && mv kubectl /usr/local/bin/
fi
if [ -z "${SKIP_KIND_INSTALL}" ]; then
wget https://github.com/kubernetes-sigs/kind/releases/download/v0.24.0/kind-linux-amd64
chmod +x kind-linux-amd64
mv kind-linux-amd64 kind
export PATH=$PATH:$PWD
kind create cluster --image kindest/node:${K8S_VERSION} --config=./hack/kind_config.yaml
fi
${CONTAINER_ENGINE:-docker} pull registry.k8s.io/pause
kind load docker-image registry.k8s.io/pause
kind load docker-image ${DESCHEDULER_IMAGE}
kind get kubeconfig > /tmp/admin.conf
# If we did not set SKIP_INSTALL
if [ -z "$SKIP_INSTALL" ]; then
${KIND_SUDO} kind create cluster --image kindest/node:${K8S_VERSION} --config=./hack/kind_config.yaml
fi
${CONTAINER_ENGINE} pull registry.k8s.io/pause
if [ "${CONTAINER_ENGINE}" == "podman" ]; then
podman save registry.k8s.io/pause -o /tmp/pause.tar
${KIND_SUDO} kind load image-archive /tmp/pause.tar
rm /tmp/pause.tar
podman save ${DESCHEDULER_IMAGE} -o /tmp/descheduler.tar
${KIND_SUDO} kind load image-archive /tmp/descheduler.tar
rm /tmp/descheduler.tar
else
${KIND_SUDO} kind load docker-image registry.k8s.io/pause
${KIND_SUDO} kind load docker-image ${DESCHEDULER_IMAGE}
fi
${KIND_SUDO} kind get kubeconfig > /tmp/admin.conf
export KUBECONFIG="/tmp/admin.conf"
mkdir -p ~/gopath/src/sigs.k8s.io/
fi
@@ -53,5 +74,30 @@ fi
# Deploy rbac, sa and binding for a descheduler running through a deployment
kubectl apply -f kubernetes/base/rbac.yaml
collect_logs() {
echo "Collecting pods and logs"
kubectl get pods -n default
kubectl get pods -n kubevirt
for pod in $(kubectl get pods -n default -o name); do
echo "Logs for ${pod}"
kubectl logs -n default ${pod}
done
for pod in $(kubectl get pods -n kubevirt -o name); do
echo "Logs for ${pod}"
kubectl logs -n kubevirt ${pod}
done
}
trap "collect_logs" ERR
if [ -z "${SKIP_KUBEVIRT_INSTALL}" ]; then
kubectl create -f https://github.com/kubevirt/kubevirt/releases/download/${KUBEVIRT_VERSION}/kubevirt-operator.yaml
kubectl create -f https://github.com/kubevirt/kubevirt/releases/download/${KUBEVIRT_VERSION}/kubevirt-cr.yaml
kubectl wait --timeout=180s --for=condition=Available -n kubevirt kv/kubevirt
kubectl -n kubevirt patch kubevirt kubevirt --type=merge --patch '{"spec":{"configuration":{"developerConfiguration":{"useEmulation":true}}}}'
fi
PRJ_PREFIX="sigs.k8s.io/descheduler"
go test ${PRJ_PREFIX}/test/e2e/ -v -timeout 0