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Update Kind scripts to support KubeVirt
Signed-off-by: Johanan Liebermann <[email protected]>
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‎Makefile‎

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@@ -985,6 +985,10 @@ test-e2e: $(GINKGO) generate-e2e-templates ## Run the end-to-end tests
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kind-cluster: ## Create a new kind cluster designed for development with Tilt
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hack/kind-install-for-capd.sh
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.PHONY: kind-cluster-kubevirt
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kind-cluster-kubevirt: ## Create a new kind cluster with KubeVirt designed for development with Tilt
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hack/kind-install-for-capk.sh
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.PHONY: tilt-e2e-prerequisites
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tilt-e2e-prerequisites: ## Build the corresponding kindest/node images required for e2e testing and generate the e2e templates
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scripts/build-kind.sh

‎hack/kind-install-for-capd.sh‎

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#!/usr/bin/env bash
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# Copyright 2021 The Kubernetes Authors.
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# Copyright 2025 The Kubernetes Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
@@ -26,37 +26,10 @@ set -o errexit
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set -o nounset
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set -o pipefail
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if [[ "${TRACE-0}" == "1" ]]; then
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set -o xtrace
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fi
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KIND_CLUSTER_NAME=${CAPI_KIND_CLUSTER_NAME:-"capi-test"}
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# See: https://kind.sigs.k8s.io/docs/user/configuration/#ip-family
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KIND_NETWORK_IPFAMILY=${KIND_NETWORK_IPFAMILY:-"dual"}
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# 1. If kind cluster already exists exit.
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if [[ "$(kind get clusters)" =~ .*"${KIND_CLUSTER_NAME}".* ]]; then
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echo "kind cluster already exists, moving on"
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exit 0
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fi
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# 2. Create registry container unless it already exists
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reg_name='kind-registry'
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reg_port='5000'
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if [ "$(docker inspect -f '{{.State.Running}}' "${reg_name}" 2>/dev/null || true)" != 'true' ]; then
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docker run \
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-d --restart=always -p "127.0.0.1:${reg_port}:5000" --name "${reg_name}" \
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registry:2
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fi
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KIND_NETWORK_IPFAMILY=${CAPI_KIND_NETWORK_IPFAMILY:-"dual"}
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# 3. Create kind cluster with containerd registry config dir enabled.
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# TODO(killianmuldoon): kind will eventually enable this by default and this patch will be unnecessary.
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#
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# See:
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# https://github.com/kubernetes-sigs/kind/issues/2875
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# https://github.com/containerd/containerd/blob/main/docs/cri/config.md#registry-configuration
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# See: https://github.com/containerd/containerd/blob/main/docs/hosts.md
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cat <<EOF | kind create cluster --name="$KIND_CLUSTER_NAME" --config=-
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KIND_CLUSTER_CONFIG="$(cat <<EOF
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kind: Cluster
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apiVersion: kind.x-k8s.io/v1alpha4
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networking:
@@ -71,39 +44,7 @@ containerdConfigPatches:
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[plugins."io.containerd.grpc.v1.cri".registry]
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config_path = "/etc/containerd/certs.d"
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EOF
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)"
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export KIND_CLUSTER_CONFIG
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# 4. Add the registry config to the nodes
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#
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# This is necessary because localhost resolves to loopback addresses that are
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# network-namespace local.
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# In other words: localhost in the container is not localhost on the host.
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#
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# We want a consistent name that works from both ends, so we tell containerd to
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# alias localhost:${reg_port} to the registry container when pulling images
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REGISTRY_DIR="/etc/containerd/certs.d/localhost:${reg_port}"
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for node in $(kind get nodes --name "$KIND_CLUSTER_NAME"); do
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docker exec "${node}" mkdir -p "${REGISTRY_DIR}"
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cat <<EOF | docker exec -i "${node}" cp /dev/stdin "${REGISTRY_DIR}/hosts.toml"
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[host."http://${reg_name}:5000"]
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EOF
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done
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# 5. Connect the registry to the cluster network if not already connected
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# This allows kind to bootstrap the network but ensures they're on the same network
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if [ "$(docker inspect -f='{{json .NetworkSettings.Networks.kind}}' "${reg_name}")" = 'null' ]; then
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docker network connect "kind" "${reg_name}"
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fi
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# 6. Document the local registry
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# https://github.com/kubernetes/enhancements/tree/master/keps/sig-cluster-lifecycle/generic/1755-communicating-a-local-registry
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cat <<EOF | kubectl apply -f -
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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: local-registry-hosting
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namespace: kube-public
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data:
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localRegistryHosting.v1: |
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host: "localhost:${reg_port}"
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help: "https://kind.sigs.k8s.io/docs/user/local-registry/"
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EOF
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"$(dirname "${BASH_SOURCE[0]}")/kind-install.sh"

‎hack/kind-install-for-capk.sh‎

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#!/usr/bin/env bash
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# Copyright 2025 The Kubernetes Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# This script installs a local Kind cluster with a local container registry and the correct files
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# mounted for using CAPK to test Cluster API.
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# The default Kind CNI is disabled because it doesn't work CAPK. Instead, Calico is used.
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# MetalLB is used as a local layer 2 load balancer to support exposing the API servers of workload
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# clusters on the local machine that's running this script.
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set -o errexit
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set -o nounset
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set -o pipefail
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CALICO_VERSION=${CAPI_CALICO_VERSION:-"v3.29.1"}
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METALLB_VERSION=${CAPI_METALLB_VERSION:-""}
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# Set manually for non-Docker runtimes - example: "172.20"
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METALLB_IP_PREFIX=${CAPI_METALLB_IP_PREFIX:-""}
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KUBEVIRT_VERSION=${CAPI_KUBEVIRT_VERSION:-""}
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# Required to support pulling KubeVirt container disk images from private registries as well as
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# avoid Docker Hub rate limiting
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KIND_DOCKER_CONFIG_PATH=${CAPI_KIND_DOCKER_CONFIG_PATH:-"$HOME/.docker/config.json"}
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# Deploy Kind cluster
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KIND_CLUSTER_CONFIG="$(cat <<EOF
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kind: Cluster
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apiVersion: kind.x-k8s.io/v1alpha4
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networking:
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disableDefaultCNI: true
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nodes:
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- role: control-plane
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extraMounts:
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- containerPath: /var/lib/kubelet/config.json
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hostPath: ${KIND_DOCKER_CONFIG_PATH}
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containerdConfigPatches:
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- |-
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[plugins."io.containerd.grpc.v1.cri".registry]
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config_path = "/etc/containerd/certs.d"
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EOF
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)"
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export KIND_CLUSTER_CONFIG
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"$(dirname "${BASH_SOURCE[0]}")/kind-install.sh"
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# Deploy Calico
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kubectl apply -f \
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"https://raw.githubusercontent.com/projectcalico/calico/${CALICO_VERSION}/manifests/calico.yaml"
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# Deploy MetalLB
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if [[ -z "$METALLB_VERSION" ]]; then
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METALLB_VERSION=$(curl "https://api.github.com/repos/metallb/metallb/releases/latest" \
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| jq -r ".tag_name")
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fi
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kubectl apply -f \
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"https://raw.githubusercontent.com/metallb/metallb/${METALLB_VERSION}/config/manifests/metallb-native.yaml"
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echo "Waiting for controller pod to be created..."
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while [[ -z $(kubectl -n metallb-system get pods \
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-l app=metallb,component=controller -o jsonpath="{.items[0].metadata.name}" 2>/dev/null) ]]; do
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sleep 2
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done
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echo "Pod created!"
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echo "Waiting for speaker pod to be created..."
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while [[ -z $(kubectl -n metallb-system get pods \
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-l app=metallb,component=speaker -o jsonpath="{.items[0].metadata.name}" 2>/dev/null) ]]; do
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sleep 2
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done
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echo "Pod created!"
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echo "Waiting for pods to become ready..."
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kubectl wait pods -n metallb-system \
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-l app=metallb,component=controller --for=condition=Ready --timeout=10m
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kubectl wait pods -n metallb-system \
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-l app=metallb,component=speaker --for=condition=Ready --timeout=2m
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echo "Pods ready!"
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if [[ -z "$METALLB_IP_PREFIX" ]]; then
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SUBNET=$(docker network inspect \
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-f '{{range .IPAM.Config}}{{if .Gateway}}{{.Subnet}}{{end}}{{end}}' kind)
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METALLB_IP_PREFIX=$(echo "$SUBNET" | sed -E 's|^([0-9]+\.[0-9]+)\..*$|\1|g')
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fi
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cat <<EOF | kubectl apply -f -
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apiVersion: metallb.io/v1beta1
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kind: IPAddressPool
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metadata:
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name: capi-ip-pool
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namespace: metallb-system
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spec:
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addresses:
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- ${METALLB_IP_PREFIX}.255.200-${METALLB_IP_PREFIX}.255.250
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---
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apiVersion: metallb.io/v1beta1
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kind: L2Advertisement
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metadata:
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name: empty
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namespace: metallb-system
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EOF
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# Deploy KubeVirt
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if [[ -z "$KUBEVIRT_VERSION" ]]; then
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KUBEVIRT_VERSION=$(curl "https://api.github.com/repos/kubevirt/kubevirt/releases/latest" \
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| jq -r ".tag_name")
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fi
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kubectl apply -f \
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"https://github.com/kubevirt/kubevirt/releases/download/${KUBEVIRT_VERSION}/kubevirt-operator.yaml"
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kubectl apply -f \
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"https://github.com/kubevirt/kubevirt/releases/download/${KUBEVIRT_VERSION}/kubevirt-cr.yaml"
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echo "Waiting for KubeVirt to become ready..."
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kubectl wait -n kubevirt kv kubevirt --for=condition=Available --timeout=10m
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echo "KubeVirt ready!"

‎hack/kind-install.sh‎

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#!/usr/bin/env bash
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# Copyright 2025 The Kubernetes Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# This script contains common logic for creating a local kind cluster with a local container
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# registry.
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set -o errexit
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set -o nounset
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set -o pipefail
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if [[ "${TRACE-0}" == "1" ]]; then
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set -o xtrace
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fi
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KIND_CLUSTER_NAME=${CAPI_KIND_CLUSTER_NAME:-"capi-test"}
30+
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# 1. If kind cluster already exists exit.
32+
if [[ "$(kind get clusters)" =~ .*"${KIND_CLUSTER_NAME}".* ]]; then
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echo "kind cluster already exists, moving on"
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exit 0
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fi
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# 2. Create registry container unless it already exists
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reg_name='kind-registry'
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reg_port='5000'
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if [ "$(docker inspect -f '{{.State.Running}}' "${reg_name}" 2>/dev/null || true)" != 'true' ]; then
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docker run \
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-d --restart=always -p "127.0.0.1:${reg_port}:5000" --name "${reg_name}" \
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registry:2
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fi
45+
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# 3. Create kind cluster with containerd registry config dir enabled.
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# TODO(killianmuldoon): kind will eventually enable this by default and this patch will be unnecessary.
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#
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# See:
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# https://github.com/kubernetes-sigs/kind/issues/2875
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# https://github.com/containerd/containerd/blob/main/docs/cri/config.md#registry-configuration
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# See: https://github.com/containerd/containerd/blob/main/docs/hosts.md
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echo "$KIND_CLUSTER_CONFIG" | kind create cluster --name="$KIND_CLUSTER_NAME" --config=-
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# 4. Add the registry config to the nodes
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#
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# This is necessary because localhost resolves to loopback addresses that are
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# network-namespace local.
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# In other words: localhost in the container is not localhost on the host.
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#
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# We want a consistent name that works from both ends, so we tell containerd to
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# alias localhost:${reg_port} to the registry container when pulling images
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REGISTRY_DIR="/etc/containerd/certs.d/localhost:${reg_port}"
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for node in $(kind get nodes --name "$KIND_CLUSTER_NAME"); do
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docker exec "${node}" mkdir -p "${REGISTRY_DIR}"
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cat <<EOF | docker exec -i "${node}" cp /dev/stdin "${REGISTRY_DIR}/hosts.toml"
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[host."http://${reg_name}:5000"]
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EOF
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done
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# 5. Connect the registry to the cluster network if not already connected
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# This allows kind to bootstrap the network but ensures they're on the same network
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if [ "$(docker inspect -f='{{json .NetworkSettings.Networks.kind}}' "${reg_name}")" = 'null' ]; then
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docker network connect "kind" "${reg_name}"
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fi
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# 6. Document the local registry
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# https://github.com/kubernetes/enhancements/tree/master/keps/sig-cluster-lifecycle/generic/1755-communicating-a-local-registry
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cat <<EOF | kubectl apply -f -
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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: local-registry-hosting
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namespace: kube-public
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data:
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localRegistryHosting.v1: |
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host: "localhost:${reg_port}"
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help: "https://kind.sigs.k8s.io/docs/user/local-registry/"
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EOF

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