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#!/usr/bin/python
#
# Fetch the availabity zone and create the sources.list
# Copyright (C) 2009 Canonical Ltd.
#
# Author: Chuck Short <chuck.short@canonical.com>
# Soren Hansen <soren@canonical.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3, as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
import os
import subprocess
from Cheetah.Template import Template
import ec2init
SOURCES_LIST = '/etc/apt/sources.list'
GENERATED_SOURCES_LIST = '/var/run/ec2/sources.list'
OUT_OF_THE_WAY_SOURCES_LIST = '/etc/apt/sources.list.moved-by-ec2-init'
def main():
ec2 = ec2init.EC2Init()
mirror = ec2.get_mirror_for_availability_zone()
if not os.path.exists(GENERATED_SOURCES_LIST):
t = os.popen("lsb_release -cs").read()
codename = t.strip()
mp = { 'mirror' : mirror, 'codename' : codename }
t = Template(file='/etc/ec2-init/templates/sources.list.tmpl', searchList=[mp])
f = open(GENERATED_SOURCES_LIST, 'w')
f.write(t.respond())
f.close()
if not os.path.exists(OUT_OF_THE_WAY_SOURCES_LIST):
os.rename(SOURCES_LIST, OUT_OF_THE_WAY_SOURCES_LIST)
os.symlink(GENERATED_SOURCES_LIST, SOURCES_LIST)
aptget = subprocess.Popen(['apt-get', 'update'])
aptget.communicate()
if __name__ == '__main__':
main()
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