diff options
Diffstat (limited to 'bin/sbuild-qemu-create')
| -rwxr-xr-x | bin/sbuild-qemu-create | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/bin/sbuild-qemu-create b/bin/sbuild-qemu-create new file mode 100755 index 0000000..ca59404 --- /dev/null +++ b/bin/sbuild-qemu-create @@ -0,0 +1,234 @@ +#!/usr/bin/python3 +# SPDX-License-Identifier: GPL-2.0-or-later +# +# Copyright © 2020-2024 Christian Kastner <ckk@debian.org> +# 2024 Johannes Schauer Marin Rodrigues <josch@debian.org> +# +# 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, see +# <http://www.gnu.org/licenses/>. +# +####################################################################### + + +import argparse +import os +import subprocess +import sys +import textwrap + + +SUPPORTED_ARCHS = [ + 'amd64', + 'arm64', + 'armhf', + 'i386', + 'ppc64el', +] + +DEFAULT_ARCH = subprocess.check_output( + ['dpkg', '--print-architecture'], + text=True, +).strip() + + +def gen_sourceslist(mirror, dist, components, with_bpo=False): + """Generate a sources.list file for the VM. + + If distribution ends with '-backports', then its base distribution will + automatically be added. + + If distribution is 'experimental', then the 'unstable' distribution will + automatically be added. + """ + sl = textwrap.dedent( + f"""\ + deb {mirror} {dist} {' '.join(components)} + deb-src {mirror} {dist} {' '.join(components)} + """) + if dist == 'experimental': + sl += textwrap.dedent( + f""" + deb {mirror} unstable {' '.join(components)} + deb-src {mirror} unstable {' '.join(components)} + """) + elif dist.endswith('-backports'): + sl += textwrap.dedent( + f""" + deb {mirror} {dist[:-10]} {' '.join(components)} + deb-src {mirror} {dist[:-10]} {' '.join(components)} + """) + return sl + + +def main(): + parser = argparse.ArgumentParser( + description="Builds images for use with qemu-sbuild and autopkgtest.", + epilog="Note that qemu-sbuild-create is just a simple wrapper around " + "autopkgtest-build-qemu(1) that automates a few additional " + "steps commonly performed with package-building images.", + ) + parser.add_argument( + '--arch', + action='store', + default=DEFAULT_ARCH, + help="Architecture to use. Default is the host architecture. " + "Currently supported architectures are: " + f"{', '.join(SUPPORTED_ARCHS)}.", + ) + parser.add_argument( + '--install-packages', + action='store', + help="Comma-separated list of additional packages to install in the " + "image using 'apt-get install' from within the image.", + ) + parser.add_argument( + '--extra-deb', + action='append', + help="Package file (.deb) from the local filesystem to install. Can " + "be specified more than once.", + ) + parser.add_argument( + '--components', + action='store', + default='main', + help="Comma-separated list of components to use with sources.list " + "entries. Default: main.", + ) + # Not yet merged into autopkgtest, see #973457 + # parser.add_argument('--variant', action='store') + parser.add_argument( + '--skel', + type=str, + action='store', + help="Skeleton directory to use for /root.", + ) + parser.add_argument( + '--authorized-keys', + metavar='FILE', + action='store', + help="Install this file as /root/.ssh/authorized_keys within the " + "guest. This will automatically install the 'openssh-server' " + "package. This supersedes any copying of this file by the " + "--skel option.", + ) + parser.add_argument( + '--size', + type=str, + action='store', + default='10G', + help="Image size to use. Note that the images are in qcow2 format, so " + "they won't consume that space right away. Default: 10G.", + ) + parser.add_argument( + '-o', '--out-file', + action='store', + help="Output filename. If not supplied, then " + "DIST-autopkgtest-ARCH.img will be used.", + ) + parser.add_argument( + '--noexec', + action='store_true', + help="Don't actually do anything. Just print the autopkgtest-build-" + "qemu(1) command string that would be executed, and then exit.", + ) + parser.add_argument( + '--boot', + choices=['auto', 'bios', 'efi', 'ieee1275', 'none'], + default='auto', + help="How the image should boot. Default is BIOS on amd64 and i386, " + "EFI on arm64 and armhf, and IEEE1275 on ppc64el.", + ) + parser.add_argument( + 'distribution', + action='store', + help="The distribution to debootstrap.", + ) + parser.add_argument( + 'mirror', + action='store', + help="The mirror to use for the installation. Note that the mirror " + "will also be used for the sources.list file in the VM.", + ) + parsed = parser.parse_args() + + # Internal args + if parsed.arch not in SUPPORTED_ARCHS: + print( + f"Unsupported architecture: {parsed.arch}", + file=sys.stderr, + ) + sys.exit(1) + if parsed.out_file: + out_file = parsed.out_file + else: + out_file = f"{parsed.distribution}-autopkgtest-{parsed.arch}.img" + components = parsed.components.split(',') + + # We can only pass arguments to the other tools via the environment + # + # Args consumed by the modscript + if parsed.skel: + os.environ['SQC_SKEL'] = parsed.skel + print('export SQC_SKEL=' + os.environ['SQC_SKEL']) + if parsed.authorized_keys: + os.environ['SQC_AUTH_KEYS'] = parsed.authorized_keys + print('export SQC_AUTH_KEYS=' + os.environ['SQC_AUTH_KEYS']) + if parsed.extra_deb: + extra_debs = ' '.join(parsed.extra_deb) + os.environ['SQC_EXTRA_DEBS'] = extra_debs + print('export SQC_EXTRA_DEBS=' + extra_debs) + if parsed.install_packages: + install_packages = parsed.install_packages.replace(',', ' ') + os.environ['SQC_INSTALL_PACKAGES'] = install_packages + print('export SQC_INSTALL_PACKAGES=' + install_packages) + # Args consumed by autopkgtest-build-qemu + os.environ['AUTOPKGTEST_APT_SOURCES'] = gen_sourceslist( + parsed.mirror, + parsed.distribution, + components, + ) + print('sources.list (via export AUTOPKGTEST_APT_SOURCES)\n------------') + print(os.environ['AUTOPKGTEST_APT_SOURCES']) + + #if parsed.variant: + # args += ['--variant', parsed.variant] + dist = parsed.distribution + if dist.endswith('-backports'): + dist = dist[:-len('-backports')] + elif dist == 'experimental': + dist = 'unstable' + + args = [ + 'autopkgtest-build-qemu', + '--architecture', parsed.arch, + '--mirror', parsed.mirror, + '--size', parsed.size, + '--script', '/usr/share/sbuild/sbuild-qemu-create-modscript', + '--boot', parsed.boot, + dist, + out_file, + ] + + if os.getuid() != 0: + print('Must be root to use this.', file=sys.stderr) + sys.exit(1) + os.umask(22) + + print(' '.join(str(a) for a in args)) + if not parsed.noexec: + os.execvp(args[0], args) + + +if __name__ == '__main__': + main() |