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Diffstat (limited to 'virt-bootstrap.py')
-rw-r--r-- | virt-bootstrap.py | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/virt-bootstrap.py b/virt-bootstrap.py new file mode 100644 index 0000000..3cd520a --- /dev/null +++ b/virt-bootstrap.py @@ -0,0 +1,120 @@ +#!/usr/bin/python +# Authors: Cedric Bosdonnat <cbosdonnat@suse.com> +# +# Copyright (C) 2017 SUSE, Inc. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# 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, write to the Free Software +# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +# + +import argparse +import gettext +import subprocess +import sys +import os +try: + from urlparse import urlparse +except ImportError: + from urllib.parse import urlparse + +import sources + + +gettext.bindtextdomain("virt-bootstrap", "/usr/share/locale") +gettext.textdomain("virt-bootstrap") +try: + gettext.install("virt-bootstrap", + localedir="/usr/share/locale", + unicode=False, + codeset = 'utf-8') +except IOError: + import __builtin__ + __builtin__.__dict__['_'] = unicode + + +def get_source(args): + url = urlparse(args.uri) + scheme = url.scheme + + if scheme == "": + scheme = 'file' + + try: + class_name = "%sSource" % scheme.capitalize() + clazz = getattr(sources, class_name) + return clazz(url, args.username, args.password, args.not_secure) + except Exception: + raise Exception("Invalid image URI scheme: '%s'" % url.scheme) + +def set_root_password(rootfs, password): + users = 'root:%s' % password + args = ['chpasswd', '-R', rootfs] + p = subprocess.Popen(args, stdin=subprocess.PIPE) + p.communicate(input=users) + if p.returncode != 0: + raise subprocess.CalledProcessError(p.returncode, cmd=args, output=None) + +def bootstrap(args): + source = get_source(args) + os.makedirs(args.dest) + source.unpack(args.dest) + + if args.root_password is not None: + set_root_password(args.dest, args.root_password) + +def main(): + parser = argparse.ArgumentParser(description=_("Container bootstrapping tool"), + epilog=_(""" + +Example supported URI formats: + + docker:///ubuntu?tag=15.04 + docker://username:password@index.docker.io/private/image + docker://privateregistry:5000/image + virt-builder:///opensuse-42.1 + file:///path/to/local/rootfs.tar.xz +""")) + parser.add_argument("uri", + help=_("Prepare and start a container from a given image")) + parser.add_argument("dest", + help=_("Destination folder of the root file system to be created")) + parser.add_argument("--not-secure", action='store_true', + help=_("Ignore HTTPS errors")) + parser.add_argument("-u","--username", default=None, + help=_("Username to use to connect to the source")) + parser.add_argument("-p","--password", default=None, + help=_("Password to use to connect to the source")) + parser.add_argument("--root-password", default=None, + help=_("Root password to set in the created rootfs")) + # TODO add --format [qcow2,dir] parameter + # TODO add UID / GID mapping parameters + + try: + args = parser.parse_args() + + # do the job here! + bootstrap(args) + + sys.exit(0) + except KeyboardInterrupt, e: + sys.exit(0) + except ValueError, e: + for line in e: + for l in line: + sys.stderr.write("%s: %s\n" % (sys.argv[0], l)) + sys.stderr.flush() + sys.exit(1) + +if __name__ == '__main__': + sys.exit(main()) |