5b5b78bf59
The linux kernel and NetworkManager fight each other over control for interface management when router advertisements are in use. Long story short if the linux kernel configures a network interface for ipv6 before NetworkManager attempts to manage that interface then NM will ignore the interface and not configure ipv4 on it. This can happen because the kernel is configured to send router advertisements solicitations which result in router advertisements which the kernel uses to configure the interface(s). There is a default of a 1 second delay before sending the solicitation which in many cases is long enough that NM has started before then. However, in slower environments like those used for testing with qemu this isn't long enough. Some testing by hand indicates that 15 seconds is about right so increase the delay to 15 seconds via sysctl.conf. Note this may increase boot times in ipv6 only environments (though it is hard to be sure due to how systemd starts everything at once and does socket activation and the like). Change-Id: I475a253091cbaf63687b91c748c31a6753bb0f57
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 ubuntuwill 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 that are
responsible for building disk images. They are also used extensively to
build images for testing OpenStack itself, particularly with nodepool.
Platforms supported include Ubuntu, CentOS, RHEL and Fedora.
Full documentation, the source of which is in
doc/source/, is published at:
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
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.