the Disk instance.
"""
- puts("Examining source media `%s'" % self.source)
- with indent(4):
- sourcedev = self.source
- mode = os.stat(self.source).st_mode
- if stat.S_ISDIR(mode):
- puts(colored.green('Looks like a directory'))
- return self._losetup(self._dir_to_disk())
- elif stat.S_ISREG(mode):
- puts(colored.green('Looks like an image file'))
- sourcedev = self._losetup(self.source)
- elif not stat.S_ISBLK(mode):
- raise ValueError("Invalid media source. Only block devices, "
- "regular files and directories are supported.")
- else:
- puts(colored.green('Looks like a block device'))
- #puts()
+ puts("Examining source media `%s'..." % self.source, False)
+ sourcedev = self.source
+ mode = os.stat(self.source).st_mode
+ if stat.S_ISDIR(mode):
+ puts(colored.green('looks like a directory'))
+ return self._losetup(self._dir_to_disk())
+ elif stat.S_ISREG(mode):
+ puts(colored.green('looks like an image file'))
+ sourcedev = self._losetup(self.source)
+ elif not stat.S_ISBLK(mode):
+ raise ValueError("Invalid media source. Only block devices, "
+ "regular files and directories are supported.")
+ else:
+ puts(colored.green('looks like a block device'))
# Take a snapshot and return it to the user
- puts("Snapshotting media source")
- with indent(4):
- size = blockdev('--getsize', sourcedev)
- cowfd, cow = tempfile.mkstemp()
- os.close(cowfd)
- self._add_cleanup(os.unlink, cow)
- # Create 1G cow sparse file
- dd('if=/dev/null', 'of=%s' % cow, 'bs=1k', \
- 'seek=%d' % (1024 * 1024))
- cowdev = self._losetup(cow)
-
- snapshot = uuid.uuid4().hex
- tablefd, table = tempfile.mkstemp()
- try:
- os.write(tablefd, "0 %d snapshot %s %s n 8" % \
- (int(size), sourcedev, cowdev))
- dmsetup('create', snapshot, table)
- self._add_cleanup(dmsetup, 'remove', snapshot)
- # Sometimes dmsetup remove fails with Device or resource busy,
- # although everything is cleaned up and the snapshot is not
- # used by anyone. Add a 2 seconds delay to be on the safe side.
- self._add_cleanup(time.sleep, 2)
-
- finally:
- os.unlink(table)
- puts(colored.green('Done'))
- # puts()
+ puts("Snapshotting media source...", False)
+ size = blockdev('--getsize', sourcedev)
+ cowfd, cow = tempfile.mkstemp()
+ os.close(cowfd)
+ self._add_cleanup(os.unlink, cow)
+ # Create 1G cow sparse file
+ dd('if=/dev/null', 'of=%s' % cow, 'bs=1k', \
+ 'seek=%d' % (1024 * 1024))
+ cowdev = self._losetup(cow)
+
+ snapshot = uuid.uuid4().hex
+ tablefd, table = tempfile.mkstemp()
+ try:
+ os.write(tablefd, "0 %d snapshot %s %s n 8" % \
+ (int(size), sourcedev, cowdev))
+ dmsetup('create', snapshot, table)
+ self._add_cleanup(dmsetup, 'remove', snapshot)
+ # Sometimes dmsetup remove fails with Device or resource busy,
+ # although everything is cleaned up and the snapshot is not
+ # used by anyone. Add a 2 seconds delay to be on the safe side.
+ self._add_cleanup(time.sleep, 2)
+
+ finally:
+ os.unlink(table)
+ puts(colored.green('done'))
new_device = DiskDevice("/dev/mapper/%s" % snapshot)
self._devices.append(new_device)
new_device.enable()
def enable(self):
"""Enable a newly created DiskDevice"""
self.progressbar = progress_generator("Launching helper VM: ")
- with indent(4):
- self.progressbar.next()
- eh = self.g.set_event_callback(self.progress_callback,
- guestfs.EVENT_PROGRESS)
- self.g.launch()
- self.guestfs_enabled = True
- self.g.delete_event_callback(eh)
- if self.progressbar is not None:
- self.progressbar.send(100)
- self.progressbar = None
- puts(colored.green('Done'))
-
- puts('Inspecting Operating System')
- with indent(4):
- roots = self.g.inspect_os()
- if len(roots) == 0:
- raise FatalError("No operating system found")
- if len(roots) > 1:
- raise FatalError("Multiple operating systems found."
- "We only support images with one filesystem.")
- self.root = roots[0]
- self.ostype = self.g.inspect_get_type(self.root)
- self.distro = self.g.inspect_get_distro(self.root)
- puts(colored.green('Found a %s system' % self.distro))
- puts()
+ self.progressbar.next()
+ eh = self.g.set_event_callback(self.progress_callback,
+ guestfs.EVENT_PROGRESS)
+ self.g.launch()
+ self.guestfs_enabled = True
+ self.g.delete_event_callback(eh)
+ if self.progressbar is not None:
+ self.progressbar.send(100)
+ self.progressbar = None
+
+ puts('Inspecting Operating System...', False)
+ roots = self.g.inspect_os()
+ if len(roots) == 0:
+ raise FatalError("No operating system found")
+ if len(roots) > 1:
+ raise FatalError("Multiple operating systems found."
+ "We only support images with one filesystem.")
+ self.root = roots[0]
+ self.ostype = self.g.inspect_get_type(self.root)
+ self.distro = self.g.inspect_get_distro(self.root)
+ puts(colored.green('found a %s system' % self.distro))
def destroy(self):
"""Destroy this DiskDevice instance."""
disk and then updating the partition table. The new disk size
(in bytes) is returned.
"""
- puts("Shrinking image (this may take a while)")
-
+ puts("Shrinking image (this may take a while)...", False)
+
dev = self.g.part_to_dev(self.root)
parttype = self.g.part_get_parttype(dev)
if parttype != 'msdos':
warn("Don't know how to resize %s partitions." % vfs_type)
return
- with indent(4):
- self.g.e2fsck_f(part_dev)
- self.g.resize2fs_M(part_dev)
+ self.g.e2fsck_f(part_dev)
+ self.g.resize2fs_M(part_dev)
+
+ output = self.g.tune2fs_l(part_dev)
+ block_size = int(
+ filter(lambda x: x[0] == 'Block size', output)[0][1])
+ block_cnt = int(
+ filter(lambda x: x[0] == 'Block count', output)[0][1])
- output = self.g.tune2fs_l(part_dev)
- block_size = int(
- filter(lambda x: x[0] == 'Block size', output)[0][1])
- block_cnt = int(
- filter(lambda x: x[0] == 'Block count', output)[0][1])
+ sector_size = self.g.blockdev_getss(dev)
- sector_size = self.g.blockdev_getss(dev)
+ start = last_partition['part_start'] / sector_size
+ end = start + (block_size * block_cnt) / sector_size - 1
- start = last_partition['part_start'] / sector_size
- end = start + (block_size * block_cnt) / sector_size - 1
+ self.g.part_del(dev, last_partition['part_num'])
+ self.g.part_add(dev, 'p', start, end)
- self.g.part_del(dev, last_partition['part_num'])
- self.g.part_add(dev, 'p', start, end)
+ new_size = (end + 1) * sector_size
+ puts(colored.green("new image size is %dMB\n" % (new_size // 2 ** 20)))
- new_size = (end + 1) * sector_size
- puts(" New image size is %dMB\n" % (new_size // 2 ** 20))
return new_size
def size(self):
from clint.textui import puts, indent
import re
+import time
class Linux(Unix):
self._uuid[dev] = attr[1]
return attr[1]
- def sysprep_acpid(self):
+ def sysprep_acpid(self, print_header=True):
"""Replace acpid powerdown action scripts to automatically shutdown
the system without checking if a GUI is running.
"""
- puts('* Fixing acpid powerdown action')
+ if print_header:
+ print 'Fixing acpid powerdown action'
- action = '#!/bin/sh\n\nPATH=/sbin:/bin:/usr/bin\n shutdown -h now '
- '\"Power button pressed\"'
+ powerbtn_action = '#!/bin/sh\n\nPATH=/sbin:/bin:/usr/bin\n' \
+ 'shutdown -h now \"Power button pressed\"'
- if self.g.is_file('/etc/acpi/powerbtn.sh'):
- self.g.write('/etc/acpi/powerbtn.sh', action)
- elif self.g.is_file('/etc/acpi/actions/power.sh'):
- self.g.write('/etc/acpi/actions/power.sh', action)
- else:
- with indent(2):
- warn("No acpid action file found")
+ events_dir = '/etc/acpi/events'
+ if not self.g.is_dir(events_dir):
+ warn("No acpid event directory found")
+ return
- def sysprep_persistent_net_rules(self):
+ event_exp = re.compile('event=(.+)', re.I)
+ action_exp = re.compile('action=(.+)', re.I)
+ for f in self.g.readdir(events_dir):
+ if f['ftyp'] != 'r':
+ continue
+
+ fullpath = "%s/%s" % (events_dir, f['name'])
+ event = ""
+ action = ""
+ for line in self.g.cat(fullpath).splitlines():
+ m = event_exp.match(line)
+ if m:
+ event = m.group(1)
+ continue
+ m = action_exp.match(line)
+ if m:
+ action = m.group(1)
+ continue
+
+ if event.strip() == "button[ /]power":
+ if action:
+ if not self.g.is_file(action):
+ warn("Acpid action file: %s does not exist" % action)
+ return
+ self.g.copy_file_to_file(fullpath, \
+ "%s.orig.snf-image-creator-%d" % (fullpath, time.time()))
+ self.g.write(fullpath, powerbtn_action)
+ return
+ else:
+ warn("Acpid event file %s does not contain and action")
+ return
+ elif event.strip() == ".*":
+ warn("Found action `.*'. Don't know how to handle this." \
+ " Please edit \%s' image file manually to make the "
+ "system immediatelly shutdown when an power button acpi " \
+ "event occures")
+ return
+
+ def sysprep_persistent_net_rules(self, print_header=True):
"""Remove udev rules that will keep network interface names persistent
after hardware changes and reboots. Those rules will be created again
the next time the image runs.
"""
- puts('* Removing persistent network interface names')
+ if print_header:
+ puts('Removing persistent network interface names')
rule_file = '/etc/udev/rules.d/70-persistent-net.rules'
if self.g.is_file(rule_file):
self.g.rm(rule_file)
- def sysprep_persistent_devs(self):
+ def sysprep_persistent_devs(self, print_header=True):
"""Scan fstab and grub configuration files and replace all
non-persistent device appearences with UUIDs.
"""
- puts('* Replacing fstab & grub non-persistent device appearences')
+ if print_header:
+ puts('Replacing fstab & grub non-persistent device appearences')
# convert all devices in fstab to persistent
persistent_root = self._persistent_fstab()
return users
- def data_cleanup_cache(self):
+ def data_cleanup_cache(self, print_header=True):
"""Remove all regular files under /var/cache"""
- puts('* Removing files under /var/cache')
+ if print_header:
+ puts('Removing files under /var/cache')
self.foreach_file('/var/cache', self.g.rm, ftype='r')
- def data_cleanup_tmp(self):
+ def data_cleanup_tmp(self, print_header=True):
"""Remove all files under /tmp and /var/tmp"""
- puts('* Removing files under /tmp and /var/tmp')
+ if print_header:
+ puts('Removing files under /tmp and /var/tmp')
self.foreach_file('/tmp', self.g.rm_rf, maxdepth=1)
self.foreach_file('/var/tmp', self.g.rm_rf, maxdepth=1)
- def data_cleanup_log(self):
+ def data_cleanup_log(self, print_header=True):
"""Empty all files under /var/log"""
- puts('* Emptying all files under /var/log')
+ if print_header:
+ puts('Emptying all files under /var/log')
self.foreach_file('/var/log', self.g.truncate, ftype='r')
- def data_cleanup_mail(self):
+ def data_cleanup_mail(self, print_header=True):
"""Remove all files under /var/mail and /var/spool/mail"""
- puts('* Removing files under /var/mail and /var/spool/mail')
+ if print_header:
+ puts('Removing files under /var/mail and /var/spool/mail')
self.foreach_file('/var/spool/mail', self.g.rm_rf, maxdepth=1)
self.foreach_file('/var/mail', self.g.rm_rf, maxdepth=1)
- def data_cleanup_userdata(self):
+ def data_cleanup_userdata(self, print_header=True):
"""Delete sensitive userdata"""
homedirs = ['/root'] + self.ls('/home/')
+ if print_header:
+ puts('Removing sensitive user data under %s' % " ".join(homedirs))
+
for homedir in homedirs:
- puts('* Removing sensitive user data under %s' % homedir)
for data in self.sensitive_userdata:
fname = "%s/%s" % (homedir, data)
if self.g.is_file(fname):
projects / snf-image-creator / commitdiff