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#!/usr/bin/env bash
# Copyright 2024 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 replaces hack/release/build/push-node.sh for Kubernetes v1.31+
# usage: push-node.sh v1.32.0
set -o errexit -o nounset -o pipefail
REGISTRY="${REGISTRY:-gcr.io/k8s-staging-kind}"
IMAGE_NAME="${IMAGE_NAME:-node}"
# cd to the repo root
REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." &> /dev/null && pwd -P)"
cd "${REPO_ROOT}"
VERSION="${1:-}"
if [[ -z "${VERSION}" ]]; then
echo >&2 "version argument not supplied, looking up current stable ..."
VERSION="$(curl -sL https://dl.k8s.io/release/stable.txt)"
fi
echo >&2 "will build node image for Kubernetes ${VERSION} ..."
# ensure we have up to date kind
echo >&2 "building kind ..."
make build
# ensure we have qemu setup so we can run cross-arch images
# TODO: dedupe specifying this image?
echo >&2 "ensuring binfmt_misc ..."
docker run --rm --privileged tonistiigi/binfmt:qemu-v7.0.0-28@sha256:66e11bea77a5ea9d6f0fe79b57cd2b189b5d15b93a2bdb925be22949232e4e55 --install all
# NOTE: adding platforms is costly in terms of build time
# we will consider expanding this in the future, for now the aim is to prove
# multi-arch and enable developers working on commonly available hardware
# Other users are free to build their own images on additional platforms using
# their own time and resources. Please see our docs.
ARCHES="${ARCHES:-amd64 arm64}"
IFS=" " read -r -a __arches__ <<< "$ARCHES"
set -x
# build for each arch
IMAGE="${REGISTRY}/${IMAGE_NAME}:${VERSION}"
images=()
for arch in "${__arches__[@]}"; do
image="${REGISTRY}/${IMAGE_NAME}-${arch}:${VERSION}"
echo >&2 "building ${image} ..."
"${REPO_ROOT}/bin/kind" build node-image --image="${image}" --arch="${arch}" "${VERSION}"
images+=("${image}")
done
# combine to manifest list tagged with kubernetes version
# images must be pushed to be referenced by docker manifest
# we push only after all builds have succeeded
for image in "${images[@]}"; do
docker push "${image}"
done
docker manifest rm "${IMAGE}" || true
docker manifest create "${IMAGE}" "${images[@]}"
docker manifest push "${IMAGE}"
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