a40f9cb91f
Since we are python3 only for openstack we create a single python3 virtualenv to install all the packages into. This gives us the benefits of installing into a virtualenv while still ensuring coinstallability. This is a major change and will likely break many things. There are several reasons for this. The change that started this effort was pip stopped uninstalling packages which used distutils to generate their package installation. Many distro packages do this which meant that pip installed packages and distro packages could not coexist in the global install space. More recently git has made pip installing repos as root more difficult due to file ownership concerns. Currently the switch to the global venv is optional, but if we go down this path we should very quickly remove the old global installation method as it has only caused us problems. Major hurdles we have to get over are convincing rootwrap to trust binaries in the virtualenvs (so you'll notice we update rootwrap configs). Some distros still have issues, keep them using the old setup for now. Depends-On: https://review.opendev.org/c/openstack/grenade/+/880266 Co-Authored-By: Dr. Jens Harbott <frickler@offenerstapel.de> Change-Id: If9bc7ba45522189d03f19b86cb681bb150ee2f25 |
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| extras.d | ||
| files | ||
| gate | ||
| inc | ||
| lib | ||
| playbooks | ||
| releasenotes/notes | ||
| roles | ||
| samples | ||
| tests | ||
| tools | ||
| .gitignore | ||
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| .mailmap | ||
| .zuul.yaml | ||
| clean.sh | ||
| CONTRIBUTING.rst | ||
| functions | ||
| functions-common | ||
| FUTURE.rst | ||
| HACKING.rst | ||
| LICENSE | ||
| Makefile | ||
| openrc | ||
| README.rst | ||
| run_tests.sh | ||
| stack.sh | ||
| stackrc | ||
| tox.ini | ||
| unstack.sh | ||
DevStack is a set of scripts and utilities to quickly deploy an OpenStack cloud from git source trees.
Goals
- To quickly build dev OpenStack environments in a clean Ubuntu or RockyLinux environment
- To describe working configurations of OpenStack (which code branches work together? what do config files look like for those branches?)
- To make it easier for developers to dive into OpenStack so that they can productively contribute without having to understand every part of the system at once
- To make it easy to prototype cross-project features
- To provide an environment for the OpenStack CI testing on every commit to the projects
Read more at https://docs.openstack.org/devstack/latest
IMPORTANT: Be sure to carefully read stack.sh and any other scripts you execute before you run them, as they install software and will alter your networking configuration. We strongly recommend that you run stack.sh in a clean and disposable vm when you are first getting started.
Versions
The DevStack master branch generally points to trunk versions of OpenStack components. For older, stable versions, look for branches named stable/[release] in the DevStack repo. For example, you can do the following to create a Zed OpenStack cloud:
git checkout stable/zed
./stack.shYou can also pick specific OpenStack project releases by setting the
appropriate *_BRANCH variables in the
localrc section of local.conf (look in stackrc for the default set). Usually just
before a release there will be milestone-proposed branches that need to
be tested:
GLANCE_REPO=https://opendev.org/openstack/glance.git
GLANCE_BRANCH=milestone-proposedStart A Dev Cloud
Installing in a dedicated disposable VM is safer than installing on your dev machine! Plus you can pick one of the supported Linux distros for your VM. To start a dev cloud run the following NOT AS ROOT (see DevStack Execution Environment below for more on user accounts):
./stack.sh
When the script finishes executing, you should be able to access OpenStack endpoints, like so:
- Horizon: http://myhost/
- Keystone: http://myhost/identity/v3/
We also provide an environment file that you can use to interact with your cloud via CLI:
# source openrc file to load your environment with OpenStack CLI creds
. openrc
# list instances
openstack server listDevStack Execution Environment
DevStack runs rampant over the system it runs on, installing things and uninstalling other things. Running this on a system you care about is a recipe for disappointment, or worse. Alas, we're all in the virtualization business here, so run it in a VM. And take advantage of the snapshot capabilities of your hypervisor of choice to reduce testing cycle times. You might even save enough time to write one more feature before the next feature freeze...
stack.sh needs to have root access for a lot of tasks,
but uses sudo for all of those tasks. However, it needs to
be not-root for most of its work and for all of the OpenStack services.
stack.sh specifically does not run if started as root.
DevStack will not automatically create the user, but provides a
helper script in tools/create-stack-user.sh. Run that (as
root!) or just check it out to see what DevStack's expectations are for
the account it runs under. Many people simply use their usual login (the
default 'ubuntu' login on a UEC image for example).
Customizing
DevStack can be extensively configured via the configuration file local.conf. It is likely that you will need to provide and modify this file if you want anything other than the most basic setup. Start by reading the configuration guide for details of the configuration file and the many available options.