-#!/usr/bin/python
-# Copyright 2011, 2012 Lars Wirzenius
+#! /usr/bin/python
+# Copyright 2011-2013 Lars Wirzenius
# Copyright 2012 Codethink Limited
-#
+# Copyright 2014 Neil Williams <codehelp@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 3 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 shutil
import subprocess
import tempfile
+import time
-__version__ = '0.1.0'
+__version__ = '0.6'
+# pylint: disable=invalid-name
-class VmDebootstrap(cliapp.Application):
- def add_settings(self):
- default_arch = 'amd64'
-
- self.settings.boolean(['verbose'], 'report what is going on')
- self.settings.string(['image'], 'put created disk image in FILE',
- metavar='FILE')
- self.settings.bytesize(['size'],
- 'create a disk image of size SIZE (%default)',
- metavar='SIZE',
- default='1G')
- self.settings.bytesize(['bootsize'],
- 'create boot partition of size SIZE (%default)',
- metavar='BOOTSIZE',
- default='0%')
- self.settings.string(['boottype'],
- 'specify file system type for /boot/',
- default='ext2')
- self.settings.string(['foreign'],
- 'set up foreign debootstrap environment using provided program (ie binfmt handler)')
- self.settings.string(['variant'],
- 'select debootstrap variant it not using the default')
- self.settings.boolean(['no-extlinux'], 'do not install extlinux')
- self.settings.string(['tarball'], "tar up the disk's contents in FILE",
- metavar='FILE')
- self.settings.string(['mirror'],
- 'use MIRROR as package source (%default)',
- metavar='URL',
- default='http://cdn.debian.net/debian/')
- self.settings.string(['arch'], 'architecture to use (%default)',
- metavar='ARCH',
- default=default_arch)
- self.settings.string(['distribution'],
- 'release to use (%default)',
- metavar='NAME',
- default='stable')
- self.settings.string_list(['package'], 'install PACKAGE onto system')
- self.settings.string_list(['custom-package'],
- 'install package in DEB file onto system '
- '(not from mirror)',
- metavar='DEB')
- self.settings.boolean(['no-kernel'], 'do not install a linux package')
- self.settings.boolean(['enable-dhcp'], 'enable DHCP on eth0')
- self.settings.string(['root-password'], 'set root password',
- metavar='PASSWORD')
- self.settings.boolean(['lock-root-password'],
- 'lock root account so they cannot login?')
- self.settings.string(['customize'],
- 'run SCRIPT after setting up system',
- metavar='SCRIPT')
- self.settings.string(['hostname'],
- 'set name to HOSTNAME (%default)',
- metavar='HOSTNAME',
- default='debian')
- self.settings.string_list(['user'],
- 'create USER with PASSWORD',
- metavar='USER/PASSWORD')
- self.settings.boolean(['serial-console'],
- 'configure image to use a serial console')
- self.settings.string(['serial-console-command'],
- 'command to manage the serial console, appended '
- 'to /etc/inittab (%default)',
- metavar='COMMAND',
- default='/sbin/getty -L ttyS0 115200 vt100')
- self.settings.boolean(['sudo'],
- 'install sudo, and if user is created, add them '
- 'to sudo group')
-
- def process_args(self, args):
- if not self.settings['image'] and not self.settings['tarball']:
- raise cliapp.AppException('You must give disk image filename, '
- 'or tarball filename')
- if self.settings['image'] and not self.settings['size']:
- raise cliapp.AppException('If disk image is specified, '
- 'You must give image size.')
+class VmDebootstrap(cliapp.Application): # pylint: disable=too-many-public-methods
+ def __init__(self, progname=None, version=__version__, description=None, epilog=None):
+ super(VmDebootstrap, self).__init__(progname, version, description, epilog)
self.remove_dirs = []
self.mount_points = []
+ def add_settings(self):
+ default_arch = subprocess.check_output(
+ ["dpkg", "--print-architecture"]).strip()
+
+ self.settings.boolean(
+ ['verbose'], 'report what is going on')
+ self.settings.string(
+ ['image'], 'put created disk image in FILE',
+ metavar='FILE')
+ self.settings.bytesize(
+ ['size'],
+ 'create a disk image of size SIZE (%default)',
+ metavar='SIZE',
+ default='1G')
+ self.settings.bytesize(
+ ['bootsize'],
+ 'create boot partition of size SIZE (%default)',
+ metavar='BOOTSIZE',
+ default='0%')
+ self.settings.string(
+ ['boottype'],
+ 'specify file system type for /boot/',
+ default='ext2')
+ self.settings.bytesize(
+ ['bootoffset'],
+ 'Space to leave at start of the image for bootloader',
+ default='0')
+ self.settings.string(
+ ['part-type'],
+ 'Partition type to use for this image',
+ default='msdos')
+ self.settings.string(
+ ['foreign'],
+ 'set up foreign debootstrap environment using provided program (ie binfmt handler)')
+ self.settings.string(
+ ['variant'],
+ 'select debootstrap variant it not using the default')
+ self.settings.boolean(
+ ['extlinux'],
+ 'install extlinux?',
+ default=True)
+ self.settings.string(
+ ['tarball'],
+ "tar up the disk's contents in FILE",
+ metavar='FILE')
+ self.settings.string(
+ ['apt-mirror'],
+ 'configure apt to use MIRROR',
+ metavar='URL')
+ self.settings.string(
+ ['mirror'],
+ 'use MIRROR as package source (%default)',
+ metavar='URL',
+ default='http://http.debian.net/debian/')
+ self.settings.string(
+ ['arch'],
+ 'architecture to use (%default)',
+ metavar='ARCH',
+ default=default_arch)
+ self.settings.string(
+ ['distribution'],
+ 'release to use (%default)',
+ metavar='NAME',
+ default='stable')
+ self.settings.string_list(
+ ['package'],
+ 'install PACKAGE onto system')
+ self.settings.string_list(
+ ['custom-package'],
+ 'install package in DEB file onto system (not from mirror)',
+ metavar='DEB')
+ self.settings.boolean(
+ ['no-kernel'],
+ 'do not install a linux package')
+ self.settings.boolean(
+ ['enable-dhcp'],
+ 'enable DHCP on eth0')
+ self.settings.string(
+ ['root-password'],
+ 'set root password',
+ metavar='PASSWORD')
+ self.settings.boolean(
+ ['lock-root-password'],
+ 'lock root account so they cannot login?')
+ self.settings.string(
+ ['customize'],
+ 'run SCRIPT after setting up system',
+ metavar='SCRIPT')
+ self.settings.string(
+ ['hostname'],
+ 'set name to HOSTNAME (%default)',
+ metavar='HOSTNAME',
+ default='debian')
+ self.settings.string_list(
+ ['user'],
+ 'create USER with PASSWORD',
+ metavar='USER/PASSWORD')
+ self.settings.boolean(
+ ['serial-console'],
+ 'configure image to use a serial console')
+ self.settings.string(
+ ['serial-console-command'],
+ 'command to manage the serial console, appended to /etc/inittab (%default)',
+ metavar='COMMAND',
+ default='/sbin/getty -L ttyS0 115200 vt100')
+ self.settings.boolean(
+ ['sudo'],
+ 'install sudo, and if user is created, add them to sudo group')
+ self.settings.string(
+ ['owner'],
+ 'the user who will own the image when the build is complete.')
+ self.settings.boolean(
+ ['squash'],
+ 'use squashfs on the final image.')
+ self.settings.boolean(
+ ['configure-apt'],
+ 'Create an apt source based on the distribution and mirror selected.')
+ self.settings.boolean(
+ ['mbr'],
+ 'Run install-mbr (default if extlinux used)')
+ self.settings.boolean(
+ ['grub'],
+ 'Install and configure grub2 - disables extlinux.')
+ self.settings.boolean(
+ ['sparse'],
+ 'Dont fill the image with zeros to keep a sparse disk image',
+ default=False)
+ self.settings.boolean(
+ ['pkglist'],
+ 'Create a list of package names included in the image.')
+
+ def process_args(self, args): # pylint: disable=too-many-branches,too-many-statements
+ if not self.settings['image'] and not self.settings['tarball']:
+ raise cliapp.AppException(
+ 'You must give disk image filename, or tarball filename')
+ if self.settings['image'] and not self.settings['size']:
+ raise cliapp.AppException(
+ 'If disk image is specified, you must give image size.')
+
+ rootdir = None
try:
+ rootdev = None
roottype = 'ext4'
+ bootdev = None
+ boottype = None
if self.settings['image']:
self.create_empty_image()
self.partition_image()
- self.install_mbr()
- (rootdev,bootdev) = self.setup_kpartx()
- self.mkfs(rootdev, type=roottype)
+ if self.settings['mbr'] or self.settings['extlinux']:
+ self.install_mbr()
+ (rootdev, bootdev) = self.setup_kpartx()
+ self.mkfs(rootdev, fstype=roottype)
rootdir = self.mount(rootdev)
if bootdev:
if self.settings['boottype']:
boottype = self.settings['boottype']
else:
boottype = 'ext2'
- self.mkfs(bootdev, type=boottype)
+ self.mkfs(bootdev, fstype=boottype)
bootdir = '%s/%s' % (rootdir, 'boot/')
os.mkdir(bootdir)
- bootdir = self.mount(bootdev, bootdir)
+ self.mount(bootdev, bootdir)
else:
rootdir = self.mkdtemp()
self.debootstrap(rootdir)
self.create_users(rootdir)
self.remove_udev_persistent_rules(rootdir)
self.setup_networking(rootdir)
+ if self.settings['configure-apt'] or self.settings['apt-mirror']:
+ self.configure_apt(rootdir)
self.customize(rootdir)
+ self.update_initramfs(rootdir)
+
if self.settings['image']:
- if not self.settings['no-extlinux']:
+ if self.settings['grub']:
+ self.install_grub2(rootdev, rootdir)
+ elif self.settings['extlinux']:
self.install_extlinux(rootdev, rootdir)
+ self.append_serial_console(rootdir)
self.optimize_image(rootdir)
+ if self.settings['squash']:
+ self.squash()
+ if self.settings['pkglist']:
+ self.list_installed_pkgs(rootdir)
if self.settings['foreign']:
os.unlink('%s/usr/bin/%s' %
if self.settings['tarball']:
self.create_tarball(rootdir)
+
+ if self.settings['owner']:
+ self.chown()
except BaseException, e:
self.message('EEEK! Something bad happened...')
+ if rootdir:
+ db_log = os.path.join(rootdir, 'debootstrap', 'debootstrap.log')
+ if os.path.exists(db_log):
+ shutil.copy(db_log, os.getcwd())
+ self.message(e)
self.cleanup_system()
raise
else:
if self.settings['verbose']:
print msg
- def runcmd(self, argv, stdin='', ignore_fail=False, **kwargs):
- logging.debug('runcmd: %s %s' % (argv, kwargs))
- p = subprocess.Popen(argv, stdin=subprocess.PIPE,
- stdout=subprocess.PIPE, stderr=subprocess.PIPE,
- **kwargs)
+ def runcmd(self, argv, stdin='', ignore_fail=False, env=None, **kwargs):
+ logging.debug('runcmd: %s %s %s', argv, env, kwargs)
+ p = subprocess.Popen(argv, stdin=subprocess.PIPE,
+ stdout=subprocess.PIPE, stderr=subprocess.PIPE,
+ env=env, **kwargs)
out, err = p.communicate(stdin)
if p.returncode != 0:
msg = 'command failed: %s\n%s\n%s' % (argv, out, err)
def mkdtemp(self):
dirname = tempfile.mkdtemp()
self.remove_dirs.append(dirname)
- logging.debug('mkdir %s' % dirname)
+ logging.debug('mkdir %s', dirname)
return dirname
-
+
def mount(self, device, path=None):
if not path:
mount_point = self.mkdtemp()
else:
mount_point = path
- self.message('Mounting %s on %s' % (device,mount_point))
+ self.message('Mounting %s on %s' % (device, mount_point))
self.runcmd(['mount', device, mount_point])
self.mount_points.append(mount_point)
- logging.debug('mounted %s on %s' % (device, mount_point))
+ logging.debug('mounted %s on %s', device, mount_point)
return mount_point
def create_empty_image(self):
self.message('Creating disk image')
- self.runcmd(['qemu-img', 'create', '-f', 'raw',
+ self.runcmd(['qemu-img', 'create', '-f', 'raw',
self.settings['image'],
str(self.settings['size'])])
def partition_image(self):
+ """
+ Uses fat16 (msdos) partitioning by default, use part-type to change.
+ If bootoffset is specified, the first actual partition
+ starts at that offset to allow customisation scripts to
+ put bootloader images into the space, e.g. u-boot.
+ """
self.message('Creating partitions')
self.runcmd(['parted', '-s', self.settings['image'],
- 'mklabel', 'msdos'])
+ 'mklabel', self.settings['part-type']])
+ partoffset = 0
+ bootsize = 0
+ if self.settings['bootoffset'] and self.settings['bootoffset'] is not '0':
+ # turn v.small offsets into something at least possible to create.
+ if self.settings['bootoffset'] < 1048576:
+ partoffset = 1
+ logging.info(
+ "Setting bootoffset %smib to allow for %s bytes",
+ partoffset, self.settings['bootoffset'])
+ else:
+ partoffset = self.settings['bootoffset'] / (1024 * 1024)
+ self.message("Using bootoffset: %smib %s bytes" % (partoffset, self.settings['bootoffset']))
if self.settings['bootsize'] and self.settings['bootsize'] is not '0%':
- bootsize=str(self.settings['bootsize']/(1024*1024))
+ bootsize = self.settings['bootsize'] / (1024 * 1024)
+ bootsize += partoffset
+ self.message("Using bootsize %smib: %s bytes" % (bootsize, self.settings['bootsize']))
+ logging.debug("Starting boot partition at %sMb", bootsize)
+ self.runcmd(['parted', '-s', self.settings['image'],
+ 'mkpart', 'primary', 'fat16', str(partoffset), str(bootsize)])
+ if partoffset == 0:
self.runcmd(['parted', '-s', self.settings['image'],
- 'mkpart', 'primary', 'fat16', '0', bootsize])
+ 'mkpart', 'primary', '0%', '100%'])
else:
- bootsize='0%'
- self.runcmd(['parted', '-s', self.settings['image'],
- 'mkpart', 'primary', bootsize, '100%'])
+ logging.debug("Starting root partition at %sMb", partoffset)
+ self.runcmd(['parted', '-s', self.settings['image'],
+ 'mkpart', 'primary', str(bootsize), '100%'])
self.runcmd(['parted', '-s', self.settings['image'],
'set', '1', 'boot', 'on'])
+ def update_initramfs(self, rootdir):
+ cmd = os.path.join('usr', 'sbin', 'update-initramfs')
+ if os.path.exists(os.path.join(rootdir, cmd)):
+ self.message("Updating the initramfs")
+ self.runcmd(['chroot', rootdir, cmd, '-u'])
+
def install_mbr(self):
- self.message('Installing MBR')
- self.runcmd(['install-mbr', self.settings['image']])
+ if os.path.exists("/sbin/install-mbr"):
+ self.message('Installing MBR')
+ self.runcmd(['install-mbr', self.settings['image']])
+ else:
+ msg = "mbr enabled but /sbin/install-mbr not found"
+ " - please install the mbr package."
+ raise cliapp.AppException(msg)
def setup_kpartx(self):
- out = self.runcmd(['kpartx', '-av', self.settings['image']])
+ bootindex = None
+ out = self.runcmd(['kpartx', '-avs', self.settings['image']])
if self.settings['bootsize']:
bootindex = 0
rootindex = 1
else:
rootindex = 0
parts = 1
- boot = None
+ boot = None
devices = [line.split()[2]
for line in out.splitlines()
if line.startswith('add map ')]
root = '/dev/mapper/%s' % devices[rootindex]
if self.settings['bootsize']:
boot = '/dev/mapper/%s' % devices[bootindex]
- return (root,boot)
+ return root, boot
- def mkfs(self, device, type):
- self.message('Creating filesystem %s' % type)
- self.runcmd(['mkfs', '-t', type, device])
-
- def debootstrap(self, rootdir):
- self.message('Debootstrapping')
+ def mkfs(self, device, fstype):
+ self.message('Creating filesystem %s' % fstype)
+ self.runcmd(['mkfs', '-t', fstype, device])
- if self.settings['foreign']:
- necessary_packages = []
- else:
- necessary_packages = ['acpid']
+ def debootstrap(self, rootdir):
+ msg = "(%s)" % self.settings['variant'] if self.settings['variant'] else ''
+ self.message('Debootstrapping %s %s' % (self.settings['distribution'], msg))
include = self.settings['package']
+ if not self.settings['foreign']:
+ include.append('acpid')
+
+ if self.settings['grub']:
+ include.append('grub2')
+
if not self.settings['no-kernel']:
if self.settings['arch'] == 'i386':
kernel_arch = '486'
include.append('sudo')
args = ['debootstrap', '--arch=%s' % self.settings['arch']]
- args.append(
- '--include=%s' % ','.join(necessary_packages + include))
+
+ if self.settings['package']:
+ args.append(
+ '--include=%s' % ','.join(include))
if self.settings['foreign']:
args.append('--foreign')
if self.settings['variant']:
args.append(self.settings['variant'])
args += [self.settings['distribution'],
rootdir, self.settings['mirror']]
+ logging.debug(" ".join(args))
self.runcmd(args)
if self.settings['foreign']:
+ # set a noninteractive debconf environment for secondstage
+ env = {
+ "DEBIAN_FRONTEND": "noninteractive",
+ "DEBCONF_NONINTERACTIVE_SEEN": "true",
+ "LC_ALL": "C"
+ }
+ # add the mapping to the complete environment.
+ env.update(os.environ)
# First copy the binfmt handler over
+ self.message('Setting up binfmt handler')
shutil.copy(self.settings['foreign'], '%s/usr/bin/' % rootdir)
# Next, run the package install scripts etc.
+ self.message('Running debootstrap second stage')
self.runcmd(['chroot', rootdir,
- '/debootstrap/debootstrap', '--second-stage'])
+ '/debootstrap/debootstrap', '--second-stage'],
+ env=env)
def set_hostname(self, rootdir):
hostname = self.settings['hostname']
with open(os.path.join(rootdir, 'etc', 'hostname'), 'w') as f:
f.write('%s\n' % hostname)
-
+
etc_hosts = os.path.join(rootdir, 'etc', 'hosts')
- with open(etc_hosts, 'r') as f:
- data = f.read()
- with open(etc_hosts, 'w') as f:
- for line in data.splitlines():
- if line.startswith('127.0.0.1'):
- line += ' %s' % hostname
- f.write('%s\n' % line)
-
- def create_fstab(self, rootdir, rootdev, roottype, bootdev, boottype):
+ try:
+ with open(etc_hosts, 'r') as f:
+ data = f.read()
+ with open(etc_hosts, 'w') as f:
+ for line in data.splitlines():
+ if line.startswith('127.0.0.1'):
+ line += ' %s' % hostname
+ f.write('%s\n' % line)
+ except IOError:
+ pass
+
+ def create_fstab(self, rootdir, rootdev, roottype, bootdev, boottype): # pylint: disable=too-many-arguments
def fsuuid(device):
out = self.runcmd(['blkid', '-c', '/dev/null', '-o', 'value',
'-s', 'UUID', device])
shutil.copy(deb, tmp)
filenames = [os.path.join('/tmp/install_debs', os.path.basename(deb))
for deb in self.settings['custom-package']]
- out, err, exit = \
+ out, err, _ = \
self.runcmd_unchecked(['chroot', rootdir, 'dpkg', '-i'] + filenames)
- logging.debug('stdout:\n%s' % out)
- logging.debug('stderr:\n%s' % err)
- out = self.runcmd(['chroot', rootdir,
- 'apt-get', '-f', '--no-remove', 'install'])
- logging.debug('stdout:\n%s' % out)
+ logging.debug('stdout:\n%s', out)
+ logging.debug('stderr:\n%s', err)
+ out = self.runcmd(['chroot', rootdir,
+ 'apt-get', '-f', '--no-remove', 'install'])
+ logging.debug('stdout:\n%s', out)
shutil.rmtree(tmp)
def cleanup_apt_cache(self, rootdir):
out = self.runcmd(['chroot', rootdir, 'apt-get', 'clean'])
- logging.debug('stdout:\n%s' % out)
+ logging.debug('stdout:\n%s', out)
def set_root_password(self, rootdir):
if self.settings['root-password']:
for x in ['70-persistent-cd.rules', '70-persistent-net.rules']:
pathname = os.path.join(rootdir, 'etc', 'udev', 'rules.d', x)
if os.path.exists(pathname):
- logging.debug('rm %s' % pathname)
+ logging.debug('rm %s', pathname)
os.remove(pathname)
else:
- logging.debug('not removing non-existent %s' % pathname)
+ logging.debug('not removing non-existent %s', pathname)
def setup_networking(self, rootdir):
self.message('Setting up networking')
-
+
f = open(os.path.join(rootdir, 'etc', 'network', 'interfaces'), 'w')
f.write('auto lo\n')
f.write('iface lo inet loopback\n')
-
+
if self.settings['enable-dhcp']:
f.write('\n')
f.write('auto eth0\n')
f.write('iface eth0 inet dhcp\n')
-
+
f.close()
+ def append_serial_console(self, rootdir):
+ if self.settings['serial-console']:
+ serial_command = self.settings['serial-console-command']
+ logging.debug('adding getty to serial console')
+ inittab = os.path.join(rootdir, 'etc/inittab')
+ # to autologin, serial_command can contain '-a root'
+ with open(inittab, 'a') as f:
+ f.write('\nS0:23:respawn:%s\n' % serial_command)
+
+ def install_grub2(self, rootdev, rootdir):
+ self.message("Configuring grub2")
+ # rely on kpartx using consistent naming to map loop0p1 to loop0
+ install_dev = os.path.join('/dev', os.path.basename(rootdev)[:-2])
+ self.runcmd(['mount', '/dev', '-t', 'devfs', '-obind',
+ '%s' % os.path.join(rootdir, 'dev')])
+ self.runcmd(['mount', '/proc', '-t', 'proc', '-obind',
+ '%s' % os.path.join(rootdir, 'proc')])
+ self.runcmd(['mount', '/sys', '-t', 'sysfs', '-obind',
+ '%s' % os.path.join(rootdir, 'sys')])
+ try:
+ self.runcmd(['chroot', rootdir, 'update-grub'])
+ self.runcmd(['chroot', rootdir, 'grub-install', install_dev])
+ except cliapp.AppException:
+ self.message("Failed. Is grub2-common installed? Using extlinux.")
+ self.runcmd(['umount', os.path.join(rootdir, 'sys')])
+ self.runcmd(['umount', os.path.join(rootdir, 'proc')])
+ self.runcmd(['umount', os.path.join(rootdir, 'dev')])
+ self.install_extlinux(rootdev, rootdir)
+
def install_extlinux(self, rootdev, rootdir):
+ if not os.path.exists("/usr/bin/extlinux"):
+ self.message("extlinux not installed, skipping.")
+ return
self.message('Installing extlinux')
def find(pattern):
dirname = os.path.join(rootdir, 'boot')
basenames = os.listdir(dirname)
- logging.debug('find: %s' % basenames)
+ logging.debug('find: %s', basenames)
for basename in basenames:
if re.search(pattern, basename):
return os.path.join('boot', basename)
raise cliapp.AppException('Cannot find match: %s' % pattern)
- kernel_image = find('vmlinuz-.*')
- initrd_image = find('initrd.img-.*')
+ try:
+ kernel_image = find('vmlinuz-.*')
+ initrd_image = find('initrd.img-.*')
+ except cliapp.AppException as e:
+ self.message("Unable to find kernel. Not installing extlinux.")
+ logging.debug("No kernel found. %s. Skipping install of extlinux.", e)
+ return
out = self.runcmd(['blkid', '-c', '/dev/null', '-o', 'value',
'-s', 'UUID', rootdev])
uuid = out.splitlines()[0].strip()
conf = os.path.join(rootdir, 'extlinux.conf')
- logging.debug('configure extlinux %s' % conf)
- f = open(conf, 'w')
- f.write('''
+ logging.debug('configure extlinux %s', conf)
+ kserial = 'console=ttyS0,115200' if self.settings['serial-console'] else ''
+ extserial = 'serial 0 115200' if self.settings['serial-console'] else ''
+ msg = '''
default linux
timeout 1
append initrd=%(initrd)s root=UUID=%(uuid)s ro %(kserial)s
%(extserial)s
''' % {
- 'kernel': kernel_image,
- 'initrd': initrd_image,
- 'uuid': uuid,
- 'kserial':
- 'console=ttyS0,115200' if self.settings['serial-console'] else '',
- 'extserial': 'serial 0 115200' if self.settings['serial-console'] else '',
-})
- f.close()
-
- if self.settings['serial-console']:
- serial_command = self.settings['serial-console-command']
- logging.debug('adding getty to serial console')
- inittab = os.path.join(rootdir, 'etc/inittab')
- with open(inittab, 'a') as f:
- f.write('\nS0:23:respawn:%s\n' % serial_command)
+ 'kernel': kernel_image, # pylint: disable=bad-continuation
+ 'initrd': initrd_image, # pylint: disable=bad-continuation
+ 'uuid': uuid, # pylint: disable=bad-continuation
+ 'kserial': kserial, # pylint: disable=bad-continuation
+ 'extserial': extserial, # pylint: disable=bad-continuation
+ } # pylint: disable=bad-continuation
+ logging.debug("extlinux config:\n%s", msg)
+
+ # python multiline string substitution is just ugly.
+ # use an external file or live with the mangling, no point in
+ # mangling the string to remove spaces just to keep it pretty in source.
+ f = open(conf, 'w')
+ f.write(msg)
self.runcmd(['extlinux', '--install', rootdir])
self.runcmd(['sync'])
- import time; time.sleep(2)
+ time.sleep(2)
def optimize_image(self, rootdir):
"""
Filing up the image with zeros will increase its compression rate
"""
- zeros = os.path.join(rootdir, 'ZEROS')
- self.runcmd_unchecked(['dd', 'if=/dev/zero', 'of=' + zeros, 'bs=1M'])
- self.runcmd(['rm', '-f', zeros])
+ if not self.settings['sparse']:
+ zeros = os.path.join(rootdir, 'ZEROS')
+ self.runcmd_unchecked(['dd', 'if=/dev/zero', 'of=' + zeros, 'bs=1M'])
+ self.runcmd(['rm', '-f', zeros])
+ def squash(self):
+ """
+ Run squashfs on the image.
+ """
+ if not os.path.exists('/usr/bin/mksquashfs'):
+ logging.warning("Squash selected but mksquashfs not found!")
+ return
+ self.message("Running mksquashfs")
+ suffixed = "%s.squashfs" % self.settings['image']
+ self.runcmd(['mksquashfs', self.settings['image'],
+ suffixed,
+ '-no-progress', '-comp', 'xz'], ignore_fail=False)
+ os.unlink(self.settings['image'])
+ self.settings['image'] = suffixed
def cleanup_system(self):
# Clean up after any errors.
self.message('Cleaning up')
- # Umount in the reverse mount order
+ # Umount in the reverse mount order
if self.settings['image']:
- for i in xrange(len(self.mount_points) - 1, -1, -1):
+ for i in range(len(self.mount_points) - 1, -1, -1):
mount_point = self.mount_points[i]
- self.runcmd(['umount', mount_point], ignore_fail=True)
+ try:
+ self.runcmd(['umount', mount_point], ignore_fail=False)
+ except cliapp.AppException:
+ logging.debug("umount failed, sleeping and trying again")
+ time.sleep(5)
+ self.runcmd(['umount', mount_point], ignore_fail=False)
self.runcmd(['kpartx', '-d', self.settings['image']], ignore_fail=True)
-
+
for dirname in self.remove_dirs:
shutil.rmtree(dirname)
def customize(self, rootdir):
script = self.settings['customize']
- if script:
- self.message('Running customize script %s' % script)
- with open('/dev/tty', 'w') as tty:
- cliapp.runcmd([script, rootdir], stdout=tty, stderr=tty)
+ if not script:
+ return
+ if not os.path.exists(script):
+ example = os.path.join("/usr/share/vmdebootstrap/examples/", script)
+ if not os.path.exists(example):
+ self.message("Unable to find %s" % script)
+ return
+ script = example
+ self.message('Running customize script %s' % script)
+ logging.info("rootdir=%s image=%s", rootdir, self.settings['image'])
+ with open('/dev/tty', 'w') as tty:
+ cliapp.runcmd([script, rootdir, self.settings['image']], stdout=tty, stderr=tty)
def create_tarball(self, rootdir):
# Create a tarball of the disk's contents
self.message('Creating tarball of disk contents')
self.runcmd(['tar', '-cf', self.settings['tarball'], '-C', rootdir, '.'])
+ def chown(self):
+ # Change image owner after completed build
+ self.message("Changing owner to %s" % self.settings["owner"])
+ subprocess.call(["chown",
+ self.settings["owner"],
+ self.settings["image"]])
+
+ def list_installed_pkgs(self, rootdir):
+ # output the list of installed packages for sources identification
+ self.message("Creating a list of installed binary package names")
+ out = self.runcmd(['chroot', rootdir,
+ 'dpkg-query', '-W' "-f='${Package}.deb\n'"])
+ with open('dpkg.list', 'w') as dpkg:
+ dpkg.write(out)
+
+ def configure_apt(self, rootdir):
+ # use the distribution and mirror to create an apt source
+ self.message("Configuring apt to use distribution and mirror")
+ conf = os.path.join(rootdir, 'etc', 'apt', 'sources.list.d', 'base.list')
+ logging.debug('configure apt %s', conf)
+ mirror = self.settings['mirror']
+ if self.settings['apt-mirror']:
+ mirror = self.settings['apt-mirror']
+ self.message("Setting apt mirror to %s" % mirror)
+ os.unlink(os.path.join(rootdir, 'etc', 'apt', 'sources.list'))
+ f = open(conf, 'w')
+ line = 'deb %s %s main\n' % (mirror, self.settings['distribution'])
+ f.write(line)
+ line = '#deb-src %s %s main\n' % (mirror, self.settings['distribution'])
+ f.write(line)
+ f.close()
if __name__ == '__main__':
VmDebootstrap(version=__version__).run()
-