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Ian Wienand 35a1e7bee9 Refactor mount-point sorting
Currently we keep a global list of mount-points defined in the
configuration and automatically setup dependencies between mount nodes
based on their global "mount order" (i.e. higher directories mount
first).

The current method for achieving this is roughly to add the mount
points to a dictionary indexed my mount-point, then at "get_edge()"
call build the sorted list ... unless it has already been built
because this gets called for every node.

It seems much simpler to simply keep a sorted list of the
MountPointNode objects as we add them.  We don't need to implement a
sorting algorithm then, we can just use sort() and implement __lt__
for the nodes.

I believe the existing mount-order unit testing is sufficient; I'm
struggling to find a valid configuration where the mount-order is
*not* correctly specified in the configuration graph.

Change-Id: Idc05cdf42d95e230b9906773aa2b4a3b0f075598
2017-05-31 11:05:50 +10:00
bin Allow ELEMENTS_DIR to be configurable 2017-03-14 09:57:10 -06:00
diskimage_builder Refactor mount-point sorting 2017-05-31 11:05:50 +10:00
doc Add a more generic tree->graph parser 2017-05-26 10:13:14 +10:00
releasenotes Refactor: block-device filesystem creation, mount and fstab 2017-05-12 13:52:02 +02:00
tests Add bzip2 to test install 2017-05-04 14:59:14 +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 Add squashfs output image format 2016-12-19 07:21:39 +00:00
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 Make README.rst a bit more generic 2015-09-16 13:52:43 +10:00
requirements.txt Use networkx for digraph 2017-05-26 11:42:10 +10:00
setup.cfg Add state object, rename "results", add unit tests 2017-05-30 20:39:00 +10:00
setup.py Updated from global requirements 2017-03-13 19:30:19 +00:00
test-requirements.txt Add pylint with indent check 2017-05-29 16:12:35 +10:00
tox.ini Refactor: use lazy logging 2017-05-30 14:39:58 +10:00

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
<http://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:

* http://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.