77 lines
2.8 KiB
Python
77 lines
2.8 KiB
Python
#!/usr/bin/env python3
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# After a new version of Kubernetes has been released,
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# run this script to update roles/kubespray-defaults/defaults/main/download.yml
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# with new hashes.
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import sys
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from itertools import count
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from collections import defaultdict
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import requests
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from ruamel.yaml import YAML
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from packaging.version import Version
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CHECKSUMS_YML = "../roles/kubespray-defaults/defaults/main/checksums.yml"
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def open_checksums_yaml():
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yaml = YAML()
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yaml.explicit_start = True
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yaml.preserve_quotes = True
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yaml.width = 4096
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with open(CHECKSUMS_YML, "r") as checksums_yml:
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data = yaml.load(checksums_yml)
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return data, yaml
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def download_hash(minors):
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architectures = ["arm", "arm64", "amd64", "ppc64le"]
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downloads = ["kubelet", "kubectl", "kubeadm"]
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data, yaml = open_checksums_yaml()
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if not minors:
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minors = {'.'.join(minor.split('.')[:-1]) for minor in data["kubelet_checksums"]["amd64"].keys()}
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for download in downloads:
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checksum_name = f"{download}_checksums"
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data[checksum_name] = defaultdict(dict, data[checksum_name])
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for arch in architectures:
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for minor in minors:
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if not minor.startswith("v"):
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minor = f"v{minor}"
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for release in (f"{minor}.{patch}" for patch in count(start=0, step=1)):
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if release in data[checksum_name][arch]:
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continue
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hash_file = requests.get(f"https://dl.k8s.io/release/{release}/bin/linux/{arch}/{download}.sha256", allow_redirects=True)
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if hash_file.status_code == 404:
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print(f"Unable to find {download} hash file for release {release} (arch: {arch})")
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break
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hash_file.raise_for_status()
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sha256sum = hash_file.content.decode().strip()
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if len(sha256sum) != 64:
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raise Exception(f"Checksum has an unexpected length: {len(sha256sum)} (binary: {download}, arch: {arch}, release: 1.{minor}.{patch})")
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data[checksum_name][arch][release] = sha256sum
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data[checksum_name] = {arch : {r : releases[r] for r in sorted(releases.keys(),
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key=lambda v : Version(v[1:]),
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reverse=True)}
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for arch, releases in data[checksum_name].items()}
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with open(CHECKSUMS_YML, "w") as checksums_yml:
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yaml.dump(data, checksums_yml)
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print(f"\n\nUpdated {CHECKSUMS_YML}\n")
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def usage():
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print(f"USAGE:\n {sys.argv[0]} [k8s_version1] [[k8s_version2]....[k8s_versionN]]")
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def main(argv=None):
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download_hash(sys.argv[1:])
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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