116 lines
3.5 KiB
Python
116 lines
3.5 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# Copyright 2016 Kubespray
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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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import os
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import sys
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import hashlib
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import urllib2
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import yaml
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import argparse
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import shutil
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from re import sub
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def get_remote_sha256_sum(url, max_file_size=1024*1024*1024):
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remote = urllib2.urlopen(url)
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hash = hashlib.sha256()
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total_read = 0
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while True:
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data = remote.read(4096)
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total_read += 4096
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if not data or total_read > max_file_size:
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break
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hash.update(data)
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return hash.hexdigest()
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def read_vars(var_file):
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"""
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Read the variables file
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"""
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try:
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with open(var_file, "r") as f:
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kargovars = yaml.load(f)
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except:
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print(
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"Can't read variables file %s" % var_file
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)
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sys.exit(1)
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return kargovars
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def get_kube_sha256(version, download_url, binaries):
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kube_sha256 = dict()
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for k in binaries:
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s = get_remote_sha256_sum(download_url + '/' + k)
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kube_sha256[k] = s
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kube_sha256['kube_apiserver'] = kube_sha256.pop('kube-apiserver')
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return(kube_sha256)
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def file_sub(file, regex, string):
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"Substitute string in a file"
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shutil.move(file, file + '~')
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f = open(file + '~', 'r')
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data = f.read()
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o = open(file, 'w')
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o.write(sub(regex, string, data))
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f.close()
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o.close()
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os.remove(file + '~')
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if __name__ == '__main__':
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parser = argparse.ArgumentParser(
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prog='change_k8s_version',
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description='%(prog)s changes the version to be installed with kargo',
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)
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parser.add_argument(
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'-v', '--version', dest='kube_version', required=True,
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help="kubernetes version"
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)
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parser.add_argument(
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'-r', '--repository', dest='docker_repository', required=True,
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help="hyperkube docker repository"
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)
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args = parser.parse_args()
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kargo_root_path = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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file_sub(
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os.path.join(kargo_root_path, 'roles/kubernetes/node/defaults/main.yml'),
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r'.*hyperkube_image_repo.*', 'hyperkube_image_repo: "%s"' % args.docker_repository
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)
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file_sub(
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os.path.join(kargo_root_path, 'roles/kubernetes/node/defaults/main.yml'),
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r'.*hyperkube_image_tag.*', 'hyperkube_image_tag: "%s"' % args.kube_version
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)
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kube_binaries = ['kubelet', 'kubectl', 'kube-apiserver']
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var_files = [
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os.path.join(kargo_root_path, 'roles/uploads/vars/kube_versions.yml'),
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os.path.join(kargo_root_path, 'roles/download/vars/kube_versions.yml')
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]
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kube_download_url = "https://storage.googleapis.com/kubernetes-release/release/%s/bin/linux/amd64" % args.kube_version
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new = get_kube_sha256(args.kube_version, kube_download_url, kube_binaries)
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for f in var_files:
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current = read_vars(f)
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current['kube_checksum'][args.kube_version] = new
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current['kube_version'] = args.kube_version
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with open(f, 'w') as out:
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out.write(yaml.dump(current, indent=4, default_flow_style=False))
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