c12s-kubespray/scripts/download_hash.py

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#!/usr/bin/env python3
# After a new version of Kubernetes has been released,
# run this script to update roles/download/defaults/main.yml
# with new hashes.
import hashlib
import sys
import requests
from ruamel.yaml import YAML
MAIN_YML = "../roles/download/defaults/main.yml"
def open_main_yaml():
yaml = YAML()
yaml.explicit_start = True
yaml.preserve_quotes = True
yaml.width = 4096
with open(MAIN_YML, "r") as main_yml:
data = yaml.load(main_yml)
return data, yaml
def download_hash(versions):
architectures = ["arm", "arm64", "amd64"]
downloads = ["kubelet", "kubectl", "kubeadm"]
data, yaml = open_main_yaml()
for download in downloads:
checksum_name = f"{download}_checksums"
for arch in architectures:
for version in versions:
if not version.startswith("v"):
version = f"v{version}"
url = f"https://storage.googleapis.com/kubernetes-release/release/{version}/bin/linux/{arch}/{download}"
download_file = requests.get(url, allow_redirects=True)
download_file.raise_for_status()
sha256sum = hashlib.sha256(download_file.content).hexdigest()
data[checksum_name][arch][version] = sha256sum
with open(MAIN_YML, "w") as main_yml:
yaml.dump(data, main_yml)
print(f"\n\nUpdated {MAIN_YML}\n")
def usage():
print(f"USAGE:\n {sys.argv[0]} [k8s_version1] [[k8s_version2]....[k8s_versionN]]")
def main(argv=None):
if not argv:
argv = sys.argv[1:]
if not argv:
usage()
return 1
download_hash(argv)
return 0
if __name__ == "__main__":
sys.exit(main())