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Add new task: DeterminKernelVersion, this can potentially fix a lot of small problems

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This commit is contained in:
Anders Ingemann 2015-01-16 01:53:35 +01:00
parent 767b32d20e
commit 149db4c989
2 changed files with 32 additions and 1 deletions
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5
bootstrapvz/common/task_groups.py
View file

@ -15,6 +15,7 @@ from tasks import locale
from tasks import network from tasks import network
from tasks import initd from tasks import initd
from tasks import ssh from tasks import ssh
from tasks import kernel
def get_standard_groups(manifest): def get_standard_groups(manifest):
@ -26,6 +27,7 @@ def get_standard_groups(manifest):
if 'boot' in manifest.volume['partitions']: if 'boot' in manifest.volume['partitions']:
group.extend(boot_partition_group) group.extend(boot_partition_group)
group.extend(mounting_group) group.extend(mounting_group)
group.extend(kernel_group)
group.extend(get_fs_specific_group(manifest)) group.extend(get_fs_specific_group(manifest))
group.extend(get_network_group(manifest)) group.extend(get_network_group(manifest))
group.extend(get_apt_group(manifest)) group.extend(get_apt_group(manifest))
@ -76,6 +78,9 @@ mounting_group = [filesystem.CreateMountDir,
filesystem.DeleteMountDir, filesystem.DeleteMountDir,
] ]
kernel_group = [kernel.DetermineKernelVersion,
]
ssh_group = [ssh.AddOpenSSHPackage, ssh_group = [ssh.AddOpenSSHPackage,
ssh.DisableSSHPasswordAuthentication, ssh.DisableSSHPasswordAuthentication,
ssh.DisableSSHDNSLookup, ssh.DisableSSHDNSLookup,

28
bootstrapvz/common/tasks/kernel.py
View file

@ -1,6 +1,7 @@
from bootstrapvz.base import Task from bootstrapvz.base import Task
from .. import phases from .. import phases
from ..tasks import packages from ..tasks import packages
import logging
class AddDKMSPackages(Task): class AddDKMSPackages(Task):
@ -22,5 +23,30 @@ class UpdateInitramfs(Task):
@classmethod @classmethod
def run(cls, info): def run(cls, info):
from bootstrapvz.common.tools import log_check_call from bootstrapvz.common.tools import log_check_call
# Update initramfs (-u) for all currently installed kernel versions (-k all) # Update initramfs (-u) for all currently installed kernel versions (-k all)
log_check_call(['chroot', info.root, 'update-initramfs', '-u', '-k', 'all']) log_check_call(['chroot', info.root, 'update-initramfs', '-u', '-k', 'all'])
class DetermineKernelVersion(Task):
description = 'Determining kernel version'
phase = phases.package_installation
predecessors = [packages.InstallPackages]
@classmethod
def run(cls, info):
# Snatched from `extlinux-update' in wheezy
# list the files in boot/ that match vmlinuz-*
# sort what the * matches, the first entry is the kernel version
import os.path
import re
regexp = re.compile('^vmlinuz-(?P<version>.+)$')
def get_kernel_version(vmlinuz_path):
vmlinux_basename = os.path.basename(vmlinuz_path)
return regexp.match(vmlinux_basename).group('version')
from glob import glob
boot = os.path.join(info.root, 'boot')
vmlinuz_paths = glob('{boot}/vmlinuz-*'.format(boot=boot))
kernels = map(get_kernel_version, vmlinuz_paths)
info.kernel_version = sorted(kernels, reverse=True)[0]
logging.getLogger(__name__).debug('Kernel version is {version}'.format(version=info.kernel_version))