58 lines
2.2 KiB
Bash
Executable File
58 lines
2.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Copyright 2022 The cert-manager 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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set -eu -o pipefail
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# This script is used to update kind node image digests in the file:
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# ./make/kind_images.sh.
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#
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# Each Kind release is accompanied by a set of compatible "node" images, for a
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# range of different Kubernetes versions.
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# The digests of these compatible node images are included in the release notes
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# on GitHub. They look like:
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# kindest/node:${K8S_VERSION}@sha256:${DIGEST}
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#
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# This script parses the GitHub release notes, extracts the `kindest/node` image
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# references, and saves them to a shell script in the form of environment
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# variables so that the script can be sourced by other scripts which pull
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# the images and execute `kind`.
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# This mechanism is fragile and depends on the Kind release manager using a
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# consistent form for the release notes.
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# It can be made more robust if / when Kind
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# [provide machine-readable list of images for release](https://github.com/kubernetes-sigs/kind/issues/2376).
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kind_version=${1:?Supply kind version as first positional argument}
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cp ./hack/boilerplate-sh.txt ./make/kind_images.sh.tmp
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cat << EOF >> ./make/kind_images.sh.tmp
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# generated by "$0 $@" via "make update-kind-images"
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EOF
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curl -fsSL "https://api.github.com/repos/kubernetes-sigs/kind/releases/tags/${kind_version}" \
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| jq -r '
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[ .body | capture("- v?1\\.(?<minor>[0-9]+)(.(?<patch>[0-9]+))?: `kindest/node:v(?<version>[^@]+)@sha256:(?<sha256>[^`]+)`\r"; "g") ]
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| sort_by(.minor)
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| .[]
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| "KIND_IMAGE_K8S_1\(.minor)=docker.io/kindest/node@sha256:\(.sha256)"
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' >> ./make/kind_images.sh.tmp
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chmod +x ./make/kind_images.sh.tmp
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mv ./make/kind_images.sh{.tmp,}
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