diskimage-builder/diskimage_builder/elements/dracut-regenerate/finalise.d/50-dracut-regenerate
Yolanda Robla 3ff8d1e10b Move the ordering of the dracut regenerate command
When using combined with rhel7 image, the unregister of repos
has already happened, because it is executed under 60- ordering.
As dracut-regenerate may need to install extra packages for it,
it causes this step to fail, because it cannot find repos where
to pull the packages from.

Change-Id: I35e37df7990ad76a5004cb90fdd863ec743a5483
2017-09-06 12:52:05 +02:00

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#!/usr/local/bin/dib-python
# Copyright 2017 Red Hat, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import os
import re
import subprocess
import yaml
def main():
dracut_env = os.getenv('DIB_DRACUT_ENABLED_MODULES')
dracut_objects = yaml.safe_load(dracut_env)
modules_to_boot = []
for dracut_object in dracut_objects:
# first, install dependent packages
packages = dracut_object.get('packages', [])
for package in packages:
cmdline = ["install-packages", package]
subp = subprocess.Popen(cmdline, stdout=subprocess.PIPE)
out = subp.communicate()[0]
if subp.returncode:
e = subprocess.CalledProcessError(subp.returncode, cmdline)
e.output = out
raise e
# second, compose the list of modules to boot
modules_to_boot.append(dracut_object.get('name', None))
# regenerate dracut with the list of installed modules
if len(modules_to_boot) > 0:
cmdline = ["select-boot-kernel-initrd"]
subp = subprocess.Popen(cmdline, stdout=subprocess.PIPE)
out, err = subp.communicate()
if subp.returncode:
e = subprocess.CalledProcessError(subp.returncode, cmdline)
e.output = out
raise e
kernel_set = out.decode().split(':')
kernel_search = re.match("vmlinuz-(.*)", kernel_set[0])
kernel_version = "%s" % kernel_search.groups(1)
ramdisk_path = "/boot/%s" % kernel_set[1].strip()
modules_to_boot = ' ' .join(modules_to_boot)
subp = subprocess.Popen(['dracut', '--force', '--add', modules_to_boot,
'-f', ramdisk_path, kernel_version],
stdout=subprocess.PIPE)
subp.wait()
if __name__ == '__main__':
main()