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Add script to install Kind for testing with CAPD
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killianmuldoon committed Sep 17, 2021
1 parent a7fa32b commit a4a567f
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4 changes: 4 additions & 0 deletions Makefile
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Expand Up @@ -166,6 +166,10 @@ docker-build-e2e: ## Rebuild all Cluster API provider images to be used in the e
test-e2e: ## Run the e2e tests
$(MAKE) -C $(TEST_DIR)/e2e run

.PHONY: kind-cluster
kind-cluster: ## Create a new kind cluster designed for testing with Tilt
hack/kind-install-for-capd.sh

## --------------------------------------
## Binaries
## --------------------------------------
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85 changes: 85 additions & 0 deletions hack/kind-install-for-capd.sh
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#!/bin/sh

# Copyright 2021 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.


# This script installs a local KIND cluster with a local container registry and the correct files mounted for using CAPD
# to test Cluster API.
# This script is a customized version of the kind_with_local_registry script supplied by the KIND maintainers at
# https://kind.sigs.k8s.io/docs/user/local-registry/
# The modifications mount the docker socket inside the KIND cluster so that CAPD can be used to
# created docker containers.

set -o errexit
set -o nounset
set -o pipefail

NAME="capi-test"

while [[ $# -gt 0 ]]; do
key="$1"
case $key in
-n|--name)
NAME="$2"
shift
shift
;;
esac
done


# create registry container unless it already exists
reg_name='kind-registry'
reg_port='5000'
running="$(docker inspect -f '{{.State.Running}}' "${reg_name}" 2>/dev/null || true)"
if [ "${running}" != 'true' ]; then
docker run \
-d --restart=always -p "127.0.0.1:${reg_port}:5000" --name "${reg_name}" \
registry:2
fi

# create a cluster with the local registry enabled in containerd
cat <<EOF | kind create cluster --name=$NAME --config=-
kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
nodes:
- role: control-plane
extraMounts:
- hostPath: /var/run/docker.sock
containerPath: /var/run/docker.sock
containerdConfigPatches:
- |-
[plugins."io.containerd.grpc.v1.cri".registry.mirrors."localhost:${reg_port}"]
endpoint = ["http://${reg_name}:${reg_port}"]
EOF

# connect the registry to the cluster network
# (the network may already be connected)
docker network connect "kind" "${reg_name}" || true

# Document the local registry
# https://github.com/kubernetes/enhancements/tree/master/keps/sig-cluster-lifecycle/generic/1755-communicating-a-local-registry
cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: ConfigMap
metadata:
name: local-registry-hosting
namespace: kube-public
data:
localRegistryHosting.v1: |
host: "localhost:${reg_port}"
help: "https://kind.sigs.k8s.io/docs/user/local-registry/"
EOF

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