# interpreted as representing official policies, either expressed
# or implied, of GRNET S.A.
-from image_creator.os_type.unix import Unix
+from image_creator.os_type.unix import Unix, sysprep
+
import re
+import time
class Linux(Unix):
- def __init__(self, rootdev, ghandler):
- super(Linux, self).__init__(rootdev, ghandler)
+ def __init__(self, rootdev, ghandler, output):
+ super(Linux, self).__init__(rootdev, ghandler, output)
self._uuid = dict()
self._persistent = re.compile('/dev/[hsv]d[a-z][1-9]*')
if dev in self._uuid:
return self._uuid[dev]
- for attr in self.g.blkid(dev):
- if attr[0] == 'UUID':
- self._uuid[dev] = attr[1]
- return attr[1]
-
- def sysprep(self):
- """Prepere system for image creation."""
- self.sysprep_acpid()
- self.sysprep_persistent_net_rules()
- self.sysprep_persistent_devs()
+ uuid = self.g.vfs_uuid(dev)
+ assert len(uuid)
+ self._uuid[dev] = uuid
+ return uuid
- def sysprep_acpid(self):
- """Replace acpid powerdown action scripts to automatically shutdown
- the system without checking if a GUI is running.
+ @sysprep()
+ def fix_acpid(self, print_header=True):
+ """Replace acpid powerdown action scripts to immediately shutdown the
+ system without checking if a GUI is running.
"""
- 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:
- print "Warning: No acpid action file found"
+ if print_header:
+ self.out.output('Fixing acpid powerdown action')
+
+ powerbtn_action = '#!/bin/sh\n\nPATH=/sbin:/bin:/usr/bin\n' \
+ 'shutdown -h now "Power button pressed"\n'
+
+ events_dir = '/etc/acpi/events'
+ if not self.g.is_dir(events_dir):
+ self.out.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() in ("button[ /]power", "button/power.*"):
+ if action:
+ if not self.g.is_file(action):
+ self.out.warn("Acpid action file: %s does not exist" %
+ action)
+ return
+ self.g.copy_file_to_file(action,
+ "%s.orig.snf-image-creator-%d" %
+ (action, time.time()))
+ self.g.write(action, powerbtn_action)
+ return
+ else:
+ self.out.warn("Acpid event file %s does not contain and "
+ "action")
+ return
+ elif event.strip() == ".*":
+ self.out.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." %
+ action.strip().split()[0])
+ return
+
+ self.out.warn("No acpi power button event found!")
+
+ @sysprep()
+ def remove_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.
"""
+
+ if print_header:
+ self.out.output('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):
- """Scan fstab and grub configuration files and replace all
- non-persistent device appearences with UUIDs.
+ @sysprep()
+ def remove_swap_entry(self, print_header=True):
+ """Remove swap entry from /etc/fstab. If swap is the last partition
+ then the partition will be removed when shrinking is performed. If the
+ swap partition is not the last partition in the disk or if you are not
+ going to shrink the image you should probably disable this.
+ """
+
+ if print_header:
+ self.out.output('Removing swap entry from fstab')
+
+ new_fstab = ""
+ fstab = self.g.cat('/etc/fstab')
+ for line in fstab.splitlines():
+
+ entry = line.split('#')[0].strip().split()
+ if len(entry) == 6 and entry[2] == 'swap':
+ continue
+
+ new_fstab += "%s\n" % line
+
+ self.g.write('/etc/fstab', new_fstab)
+
+ @sysprep()
+ def use_persistent_block_device_names(self, print_header=True):
+ """Scan fstab & grub configuration files and replace all non-persistent
+ device references with UUIDs.
"""
+
+ if print_header:
+ self.out.output("Replacing fstab & grub non-persistent device "
+ "references")
+
# convert all devices in fstab to persistent
persistent_root = self._persistent_fstab()
entry = line.split()
if len(entry) != 6:
- print "Warning: detected abnorman entry in fstab"
+ self.out.warn("Detected abnormal entry in fstab")
return orig, "", ""
dev = entry[0]
projects / snf-image-creator / blobdiff