40e6308aa9
For new applications like this kiwi version and its use cases it is better to base it on a more recent python version
128 lines
4.5 KiB
Python
128 lines
4.5 KiB
Python
# Copyright (c) 2015 SUSE Linux GmbH. All rights reserved.
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#
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# This file is part of kiwi.
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#
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# kiwi is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# kiwi is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with kiwi. If not, see <http://www.gnu.org/licenses/>
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#
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from tempfile import mkdtemp
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from shutil import rmtree
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import os
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# project
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from .command import Command
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from .path import Path
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from .exceptions import (
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KiwiRootDirExists,
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KiwiRootInitCreationError
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)
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class RootInit(object):
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"""
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Implements creation of new root directory for a linux system.
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Host system independent static default files and device nodes
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are created to initialize a new base system
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"""
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def __init__(self, root_dir, allow_existing=False):
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if not allow_existing and os.path.exists(root_dir):
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raise KiwiRootDirExists(
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'Root directory %s already exists' % root_dir
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)
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self.root_dir = root_dir
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def delete(self):
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Command.run(['rm', '-r', '-f', self.root_dir])
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def create(self):
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root = mkdtemp()
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try:
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Path.create(root)
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base_system_paths = [
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'/dev/pts',
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'/proc',
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'/etc/sysconfig',
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'/var/cache',
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'/run',
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'/sys'
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]
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for path in base_system_paths:
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Path.create(root + path)
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Command.run(['chown', 'root:root', root + path])
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Command.run(
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['mknod', '-m', '666', root + '/dev/null', 'c', '1', '3']
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)
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Command.run(
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['mknod', '-m', '666', root + '/dev/zero', 'c', '1', '5']
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)
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Command.run(
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['mknod', '-m', '622', root + '/dev/full', 'c', '1', '7']
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)
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Command.run(
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['mknod', '-m', '666', root + '/dev/random', 'c', '1', '8']
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)
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Command.run(
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['mknod', '-m', '644', root + '/dev/urandom', 'c', '1', '9']
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)
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Command.run(
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['mknod', '-m', '666', root + '/dev/tty', 'c', '5', '0']
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)
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Command.run(
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['mknod', '-m', '666', root + '/dev/ptmx', 'c', '5', '2']
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)
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Command.run(
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['mknod', '-m', '640', root + '/dev/loop0', 'b', '7', '0']
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)
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Command.run(
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['mknod', '-m', '640', root + '/dev/loop1', 'b', '7', '1']
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)
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Command.run(
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['mknod', '-m', '640', root + '/dev/loop2', 'b', '7', '2']
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)
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Command.run(
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['mknod', '-m', '666', root + '/dev/loop3', 'b', '7', '3']
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)
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Command.run(
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['mknod', '-m', '666', root + '/dev/loop4', 'b', '7', '4']
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)
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Command.run(['ln', '-s', '/proc/self/fd', root + '/dev/fd'])
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Command.run(['ln', '-s', 'fd/2', root + '/dev/stderr'])
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Command.run(['ln', '-s', 'fd/0', root + '/dev/stdin'])
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Command.run(['ln', '-s', 'fd/1', root + '/dev/stdout'])
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Command.run(['ln', '-s', '/run', root + '/var/run'])
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self.__setup_config_templates(root)
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Command.run(
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['rsync', '-a', '--ignore-existing', root + '/', self.root_dir]
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)
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Command.run(['rm', '-r', root])
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except Exception as e:
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rmtree(root, ignore_errors=True)
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raise KiwiRootInitCreationError(
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'%s: %s' % (type(e).__name__, format(e))
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)
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def __setup_config_templates(self, root):
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group_template = '/var/adm/fillup-templates/group.aaa_base'
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passwd_template = '/var/adm/fillup-templates/passwd.aaa_base'
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proxy_template = '/var/adm/fillup-templates/sysconfig.proxy'
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if os.path.exists(group_template):
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Command.run(['cp', group_template, root + '/etc/group'])
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if os.path.exists(passwd_template):
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Command.run(['cp', passwd_template, root + '/etc/passwd'])
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if os.path.exists(proxy_template):
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Command.run(['cp', proxy_template, root + '/etc/sysconfig/proxy'])
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