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#!/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 sys
import os
from textwrap import dedent
from subprocess import CalledProcessError, Popen, PIPE
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",
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 = Popen(args, stdin=PIPE)
p.communicate(input=users)
if p.returncode != 0:
raise CalledProcessError(p.returncode, cmd=args, output=None)
def bootstrap(args):
source = get_source(args)
if not os.path.exists(args.dest):
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"),
formatter_class=argparse.RawDescriptionHelpFormatter,
epilog=dedent(_('''
Example supported URI formats:
----------------------------------------
docker://ubuntu:latest
docker://docker.io/fedora
docker://privateregistry:5000/image
file:///path/to/local/rootfs.tar.xz
----------------------------------------
''')))
parser.add_argument("uri",
help=_("URI of container image"))
parser.add_argument("dest",
help=_("Destination folder"
"where image files to be extracted"))
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 registry"))
parser.add_argument("-p", "--password", default=None,
help=_("Password to use"
"to connect to the source registry"))
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 as e:
sys.exit(0)
except ValueError as 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())
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