Puppet elements for deployment of OpenStack
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Jiri Stransky 0ac6075520 Remove ansible-pacemaker from overcloud image
The ansible-pacemaker module was added into the overcloud image at a
time we executed Ansible locally on the overcloud hosts. Now that
Ansible is executed from the undercloud, we only need such modules
installed on the undercloud.

This reverts commit 60f12230aa.

Change-Id: Ie52f46370604bcf2e18bc7a3c9467fea4602c83b
7 months ago
doc Add doc/requirements 2 years ago
elements Remove ansible-pacemaker from overcloud image 7 months ago
releasenotes Update master for stable/wallaby 2 years ago
tests Update repository after OpenStack migration 9 years ago
tools tox: Keeping going with docs 4 years ago
zuul.d Use python job template for Zed 1 year ago
.gitignore Migrate from testr to stestr 2 years ago
.gitreview OpenDev Migration Patch 4 years ago
.stestr.conf Migrate from testr to stestr 2 years ago
LICENSE Basic structure imported from tripleo-image-elements 9 years ago
MANIFEST.in Basic structure imported from tripleo-image-elements 9 years ago
README.rst update git.openstack.org to opendev 4 years ago
requirements.txt Cleanup py27 support 3 years ago
run-flake8 Update repository after OpenStack migration 9 years ago
setup.cfg setup.cfg: Replace dashes with underscores 2 years ago
setup.py Disable auto discovery 1 year ago
test-requirements.txt Migrate from testr to stestr 2 years ago
tox.ini Migrate from testr to stestr 2 years ago


Team and repository tags


Puppet building rules for OpenStack images

These elements are used to build disk images for deploying OpenStack via Heat. They are built as part of the TripleO umbrella project.


Checkout this source tree and also the diskimage builder, export an ELEMENTS_PATH to add elements from this tree, and build any disk images you need:

git clone https://opendev.org/openstack/diskimage-builder.git
git clone https://opendev.org/openstack/tripleo-puppet-elements.git
export ELEMENTS_PATH=tripleo-puppet-elements/elements
diskimage-builder/bin/disk-image-create -u base vm bootstrap local-config stackuser heat-cfntools -a i386 -o bootstrap

Common element combinations

Always include heat-cfntools in images that you intend to boot via heat : if that is not done, then the user ssh keys are not reliably pulled down from the metadata server due to interactions with cloud-init.


OpenStack images are intended to be deployed and maintained using Nova + Heat.

As such they should strive to be stateless, maintained entirely via automation.


In a running OpenStack there are several categories of config.

  • per user - e.g. ssh key registration with nova: we repeat this sort of config every time we add a user.
  • local node - e.g. nova.conf or ovs-vsctl add-br br-ex : settings that apply individually to machines
  • inter-node - e.g. credentials on rabbitmq for a given nova compute node
  • application state - e.g. 'neutron net-create ...' : settings that apply to the whole cluster not on a per-user / per-tenant basis
We have five places we can do configuration in TripleO:
  • image build time
  • in-instance heat-driven (ORC scripts)
  • in-instance first-boot scripts [deprecated]
  • from outside via APIs
  • orchestrated by Heat

Our current heuristic for deciding where to do any particular configuration step:

  • per user config should be done from the outside via APIs, even for users like 'admin' that we know we'll have. Note that service accounts are different - they are a form of inter-node configuration.
  • local node configuration should be done via ORC driven by Heat and/or configuration management system metadata.
  • inter-node configuration should be done by working through Heat. For instance, creating a rabbit account for a nova compute node is something that Heat should arrange, though the act of creating is probably done by a script on the rabbit server - triggered by Heat - and applying the config is done on the compute node by the local node script - again triggered by Heat.
  • application state changes should be done from outside via APIs
  • first-boot scripts should not be used.

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.

Release notes for the project can be found at: