69 lines
2.5 KiB
Python
69 lines
2.5 KiB
Python
#!/usr/bin/env python
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# Copyright 2015 The Kubernetes Authors All rights reserved.
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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 subprocess
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from path import path
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class KubernetesInstaller():
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"""
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This class contains the logic needed to install kuberentes binary files.
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"""
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def __init__(self, arch, version, master, output_dir):
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""" Gather the required variables for the install. """
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# The kubernetes charm needs certain commands to be aliased.
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self.aliases = {'kube-proxy': 'proxy',
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'kubelet': 'kubelet'}
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self.arch = arch
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self.version = version
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self.master = master
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self.output_dir = output_dir
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def download(self):
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""" Download the kuberentes binaries from the kubernetes master. """
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url = 'http://{0}/kubernetes/{1}/local/bin/linux/{2}'.format(
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self.master, self.version, self.arch)
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if not self.output_dir.isdir():
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self.output_dir.makedirs_p()
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for key in self.aliases:
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uri = '{0}/{1}'.format(url, key)
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destination = self.output_dir / key
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wget = 'wget -nv {0} -O {1}'.format(uri, destination)
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print(wget)
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output = subprocess.check_output(wget.split())
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print(output)
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destination.chmod(0o755)
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def install(self, install_dir=path('/usr/local/bin')):
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""" Create links to the binary files to the install directory. """
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if not install_dir.isdir():
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install_dir.makedirs_p()
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# Create the symbolic links to the real kubernetes binaries.
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for key, value in self.aliases.iteritems():
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target = self.output_dir / key
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if target.exists():
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link = install_dir / value
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if link.exists():
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link.remove()
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target.symlink(link)
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else:
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print('Error target file {0} does not exist.'.format(target))
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exit(1)
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