diskimage-builder

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Ian Wienand 6c394f5746 Pass all blockdevices to bootloader Currently we only export "image-block-device" which is the loopback device (/dev/loopX) for the underlying image. This is the device we install grub to (from inside the chroot ...) This is ok for x86, but is insufficient for some platforms like PPC which have a separate boot partition. They do not want to install to the loop device, but do things like dd special ELF files into special boot partitions. The first problem seems to be that in level1/partitioning.py we have a whole bunch of different paths that either call partprobe on the loop device, or kpartx. We have _all_part_devices_exist() that gates the kpartx for unknown reasons. We have detach_loopback() that does not seem to remove losetup created devices. I don't think this does cleanup if it uses kpartx correctly. It is extremley unclear what's going to be mapped where. This moves to us only using kpartx to map the partitions of the loop device. We will not call partprobe and create the /dev/loopXpN devices and will only have the devicemapper nodes kpartx creates. This seems to be best. Cleanup happens inside partitioning.py. practice. Deeper thinking about this, and more cleanup of the variables will be welcome. This adds "image-block-devices" (note the extra "s") which exports all the block devices with name and path. This is in a string format that can be eval'd to an array (you can't export arrays). This is then used in a follow-on (I0918e8df8797d6dbabf7af618989ab7f79ee9580) to pick the right partition on PPC. Change-Id: If8e33106b4104da2d56d7941ce96ffcb014907bc		2017-06-08 17:14:22 +10:00
bin	Allow ELEMENTS_DIR to be configurable	2017-03-14 09:57:10 -06:00
diskimage_builder	Pass all blockdevices to bootloader	2017-06-08 17:14:22 +10:00
doc	Remove ccache	2017-05-31 08:28:09 +10:00
releasenotes	Remove dracut-network element	2017-05-31 08:36:56 +10:00
tests	Add a keep-output flag for functional tests	2017-06-07 11:47:12 +10:00
.gitignore	Use sphinx warning-is-error	2017-03-14 14:49:49 +11:00
.gitreview	Update stackforge references to openstack	2013-08-17 22:58:26 -04:00
.testr.conf	Fix coverage report	2017-01-18 16:14:01 +11:00
babel.cfg	Make it possible for openstack-CI to run tests	2013-02-04 22:26:17 -08:00
bindep.txt	Use https in docs links	2017-06-05 22:54:23 +07:00
LICENSE	Fix copyrights for HP work.	2012-11-15 16:20:32 +13:00
pylint.cfg	Refactor: use lazy logging	2017-05-30 14:39:58 +10:00
README.rst	Use https in docs links	2017-06-05 22:54:23 +07:00
requirements.txt	Use networkx for digraph	2017-05-26 11:42:10 +10:00
setup.cfg	Use https in docs links	2017-06-05 22:54:23 +07:00
setup.py	Updated from global requirements	2017-03-13 19:30:19 +00:00
test-requirements.txt	Updated from global requirements	2017-06-06 12:13:28 +00:00
tox.ini	Add env var to dump config graph	2017-06-08 05:04:58 +00:00

README.rst

Image building tools for OpenStack
==================================

``diskimage-builder`` is a flexible suite of components for building a
wide-range of disk images, filesystem images and ramdisk images for
use with OpenStack.

This repository has the core functionality for building such images,
both virtual and bare metal.  Images are composed using `elements`;
while fundamental elements are provided here, individual projects have
the flexibility to customise the image build with their own elements.

For example::

  $ DIB_RELEASE=trusty disk-image-create -o ubuntu-trusty.qcow2 vm ubuntu

will create a bootable Ubuntu Trusty based ``qcow2`` image.

``diskimage-builder`` is useful to anyone looking to produce
customised images for deployment into clouds.  These tools are the
components of `TripleO <https://wiki.openstack.org/wiki/TripleO>`__
that are responsible for building disk images.  They are also used
extensively to build images for testing OpenStack itself, particularly
with `nodepool
<https://docs.openstack.org/infra/system-config/nodepool.html>`__.
Platforms supported include Ubuntu, CentOS, RHEL and Fedora.

Full documentation, the source of which is in ``doc/source/``, is
published at:

* https://docs.openstack.org/developer/diskimage-builder/

Copyright
=========

Copyright 2012 Hewlett-Packard Development Company, L.P.
Copyright (c) 2012 NTT DOCOMO, INC.

All Rights Reserved.

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.