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test.sh
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test.sh
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#!/bin/bash
# Usage:
#
# ./test.sh <version> create-node-image <directory>
#
# Create a node image for testing <version> and save it under <directory>.
#
# Note: Use:
#
# ```sh
# docker ps -a | grep kube-build-data | awk '{ print $1 }' | xargs -r docker rm -f
# docker images -a | egrep '<none>|k8s|rancher|kindest|kube' | awk '{ print $3 }' | xargs -r -n1 docker image rm -f
# ```
#
# ... to clean up leftover gunk.
#
#
# ./test.sh <version> create-cluster <directory>
#
# Create a cluster for testing <version> using the image stored under <directory>.
#
#
# ./test.sh <version> delete-cluster
#
# Delete the cluster created with create-cluster.
#
#
# ./test.sh <version> run-tests
#
# Run the tests for <version>. Set K8S_RECORD=1 if you want to run the tests in record mode.
#
#
# <version> can be a single string like "1.50", or multiple versions separated by comma like "1.50,1.51",
# or the string "all" to mean all versions. If more than one version is specified, the corresponding command
# will be run against all specified versions in parallel.
set -euo pipefail
declare -A K8S_VERSIONS=(
['1.26']='1.26.15'
['1.27']='1.27.16'
['1.28']='1.28.14'
['1.29']='1.29.9'
['1.30']='1.30.5'
['1.31']='1.31.1'
)
# https://github.com/kubernetes-sigs/kind/releases
declare -A KIND_VERSIONS=(
['1.26']='0.24.0'
['1.27']='0.24.0'
['1.28']='0.24.0'
['1.29']='0.24.0'
['1.30']='0.24.0'
['1.31']='0.24.0'
)
case "$1" in
'all')
for v in "${!K8S_VERSIONS[@]}"; do
("$0" "$v" "$2" "${@:3}" 2>&1 | sed -e "s/^/[v$v] /") &
done
wait $(jobs -pr)
exit 0
;;
*','*)
for v in ${1//,/ }; do
("$0" "$v" "$2" "${@:3}" 2>&1 | sed -e "s/^/[v$v] /") &
done
wait $(jobs -pr)
exit 0
;;
'list-versions')
for v in "${!K8S_VERSIONS[@]}"; do
echo "$v"
done
exit 0
;;
*)
;;
esac
K8S_VERSION="${K8S_VERSIONS["$1"]}"
KIND_VERSION="${KIND_VERSIONS["$1"]}"
K8S_CLUSTER_NAME="v$1"
export CARGO_TARGET_DIR="$PWD/target-tests-v$1"
# Download the appropriate version of kind
mkdir -p ~/.local/bin
flock -x ~/.local/bin -c "
hash -r
if ! command -v 'kind-$KIND_VERSION' >/dev/null; then
curl -Lo ~/.local/bin/kind-$KIND_VERSION 'https://github.com/kubernetes-sigs/kind/releases/download/v$KIND_VERSION/kind-linux-amd64'
chmod +x ~/.local/bin/kind-$KIND_VERSION
fi
"
hash -r
if ! command -v "kind-$KIND_VERSION" >/dev/null; then
PATH="$PATH:$HOME/.local/bin"
fi
case "$2" in
'create-node-image')
if [ -f "$3/kindest-node-v$K8S_VERSION.tar.gz" ]; then
exit 0
fi
if ! docker image inspect "kindest/node:v$K8S_VERSION"; then
docker pull "kindest/node:v$K8S_VERSION" ||
"kind-$KIND_VERSION" build node-image --type release --image "kindest/node:v$K8S_VERSION" "v$K8S_VERSION"
fi
mkdir -p "$3"
docker image save --output "$3/kindest-node-v$K8S_VERSION.tar.gz" "kindest/node:v$K8S_VERSION"
docker image rm -f "kindest/node:v$K8S_VERSION"
;;
'create-cluster')
if ! ("kind-$KIND_VERSION" get clusters | grep -q "$K8S_CLUSTER_NAME"); then
docker image load --input "$3/kindest-node-v$K8S_VERSION.tar.gz"
# Run against a temporary kubeconfig instead of ~/.kube/config, because kind tries to lock the kubeconfig to prevent concurrent modification.
# But if it does fail to lock the file, it just fails instead of retrying.
#
# So we run it against a throwaway kubeconfig, then export the kubeconfig and merge it into ~/.kube/config afterwards with our own locking.
trap "rm -f '/tmp/kubeconfig-v$K8S_VERSION'" EXIT
rm -f "/tmp/kubeconfig-v$K8S_VERSION"
cluster_config_path="$(dirname "$0")/k8s-openapi-tests/cluster-configs/v$1.yaml"
if [ -f "$cluster_config_path" ]; then
"kind-$KIND_VERSION" create cluster \
--name "$K8S_CLUSTER_NAME" \
--image "kindest/node:v$K8S_VERSION" \
--kubeconfig "/tmp/kubeconfig-v$K8S_VERSION" \
--config "$cluster_config_path"
else
"kind-$KIND_VERSION" create cluster \
--name "$K8S_CLUSTER_NAME" \
--image "kindest/node:v$K8S_VERSION" \
--kubeconfig "/tmp/kubeconfig-v$K8S_VERSION"
fi
rm -f "/tmp/kubeconfig-v$K8S_VERSION"
fi
mkdir -p ~/.kube
flock -x ~/.kube -c "'kind-$KIND_VERSION' export kubeconfig --name '$K8S_CLUSTER_NAME'"
;;
'delete-cluster')
if ("kind-$KIND_VERSION" get clusters | grep -q "$K8S_CLUSTER_NAME"); then
# Run against a temporary kubeconfig instead of ~/.kube/config, because kind tries to lock the kubeconfig to prevent concurrent modification.
# But if it does fail to lock the file, it just fails instead of retrying.
#
# So we run it against a throwaway kubeconfig, then delete the cluster from the real ~/.kube/config afterwards with our own locking.
trap "rm -f '/tmp/kubeconfig-v$K8S_VERSION'" EXIT
cp ~/.kube/config "/tmp/kubeconfig-v$K8S_VERSION"
"kind-$KIND_VERSION" delete cluster --name "$K8S_CLUSTER_NAME" --kubeconfig "/tmp/kubeconfig-v$K8S_VERSION"
rm -f "/tmp/kubeconfig-v$K8S_VERSION"
fi
docker image rm -f "kindest/node:v$K8S_VERSION"
mkdir -p ~/.kube
flock -x ~/.kube -c "kubectl config delete-context 'kind-$K8S_CLUSTER_NAME'" || :
flock -x ~/.kube -c "kubectl config delete-cluster 'kind-$K8S_CLUSTER_NAME'" || :
flock -x ~/.kube -c "kubectl config unset 'users.kind-$K8S_CLUSTER_NAME'" || :
;;
'run-tests')
(cd k8s-openapi-tests; K8S_CONTEXT="kind-$K8S_CLUSTER_NAME" cargo test --features "test_v${1//./_}" "${@:3}")
(cd k8s-openapi-tests-macro-deps; cargo test --features "test_v${1//./_}" "${@:3}")
;;
*)
exit 1
esac