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Ian Wienand 8e3e66dfbd Speed up chroot checking loop
It was noticed on a very busy system this can take about 1s per loop.
This starts to add up on thousands of processes.

Firstly, prune out all the kernel threads.  Then introduce a very
small inline python script to find any pids that seem to be in the
chroot without forking to examine each one.  After that the existing
loop just kills anything as before.

Change-Id: Icc7bc7eda80ffcd636f97e6542d70c220e9c225e
2016-12-13 12:47:46 +11:00
bin elements: Drop executable bits from environment files 2016-12-01 23:06:56 +00:00
diskimage_builder Clear up "already provided" message 2016-07-01 11:53:07 +10:00
doc/source Merge "Don't set tracing in environment files" 2016-11-01 01:42:59 +00:00
elements Merge "elements: Drop executable bits from environment files" 2016-12-06 03:18:33 +00:00
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tests Don't log datestamp by default in functional tests 2016-10-24 11:21:43 +11:00
.gitignore Ignore manifest outputs more carefully. 2014-06-26 04:29:51 +12:00
.gitreview Update stackforge references to openstack 2013-08-17 22:58:26 -04:00
.testr.conf Add unit test for cache-url 2014-09-30 16:39:21 -05:00
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bindep.txt Add support for bindep.txt 2016-10-23 22:32:40 -04:00
LICENSE Fix copyrights for HP work. 2012-11-15 16:20:32 +13:00
README.rst Make README.rst a bit more generic 2015-09-16 13:52:43 +10:00
requirements.txt Updated from global requirements 2016-11-09 04:14:55 +00:00
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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.