John Garbutt f1a4857d61 Limit nodes by ironic shard key
Ironic in API 1.82 added the option for nodes to be associated with
a specific shard key. This can be used to partition up the nodes within
a single ironic conductor group into smaller sets of nodes that can
each be managed by their own nova-compute ironic service.

We add a new [ironic]shard config option to allow operators to say
which shard each nova-compute process should target.
As such, when the shard is set we ignore the peer_list setting
and always have a hash ring of one.

Also corrects an issue where [ironic]/conductor_group was considered
a mutable configuration; it is not mutable, nor is shards. In any
situation where an operator changes the scope of nodes managed by a
nova compute process, a restart is required.

blueprint ironic-shards
Co-Authored-By: Jay Faulkner <jay@jvf.cc>

Change-Id: Ie0c71f7bc5a62d607ffd3134837299fee952a947
2024-02-25 13:25:27 -08:00
2024-02-25 13:25:27 -08:00
2023-12-20 18:31:47 +00:00
2023-11-10 20:12:31 +00:00
2019-04-19 19:45:52 +00:00
2017-11-24 16:51:12 -05:00
2023-08-13 09:16:27 +02:00
2017-09-07 15:42:31 +02:00
2022-08-02 15:31:19 +02:00
2024-02-05 12:06:58 -08:00
2017-03-02 11:50:48 +00:00
2023-12-20 18:31:47 +00:00
2024-02-05 12:06:58 -08:00

==============
OpenStack Nova
==============

.. image:: https://governance.openstack.org/tc/badges/nova.svg
    :target: https://governance.openstack.org/tc/reference/tags/index.html

.. Change things from this point on


OpenStack Nova provides a cloud computing fabric controller, supporting a wide
variety of compute technologies, including: libvirt (KVM, Xen, LXC and more),
Hyper-V, VMware and OpenStack Ironic.

Use the following resources to learn more.

API
---

To learn how to use Nova's API, consult the documentation available online at:

- `Compute API Guide <https://docs.openstack.org/api-guide/compute/>`__
- `Compute API Reference <https://docs.openstack.org/api-ref/compute/>`__

For more information on OpenStack APIs, SDKs and CLIs in general, refer to:

- `OpenStack for App Developers <https://www.openstack.org/appdev/>`__
- `Development resources for OpenStack clouds
  <https://developer.openstack.org/>`__

Operators
---------

To learn how to deploy and configure OpenStack Nova, consult the documentation
available online at:

- `OpenStack Nova <https://docs.openstack.org/nova/>`__

In the unfortunate event that bugs are discovered, they should be reported to
the appropriate bug tracker. If you obtained the software from a 3rd party
operating system vendor, it is often wise to use their own bug tracker for
reporting problems. In all other cases use the master OpenStack bug tracker,
available at:

- `Bug Tracker <https://bugs.launchpad.net/nova>`__

Developers
----------

For information on how to contribute to Nova, please see the contents of the
CONTRIBUTING.rst.

Any new code must follow the development guidelines detailed in the HACKING.rst
file, and pass all unit tests.

Further developer focused documentation is available at:

- `Official Nova Documentation <https://docs.openstack.org/nova/>`__
- `Official Client Documentation
  <https://docs.openstack.org/python-novaclient/>`__

Other Information
-----------------

During each `Summit`_ and `Project Team Gathering`_, we agree on what the whole
community wants to focus on for the upcoming release. The plans for nova can
be found at:

- `Nova Specs <http://specs.openstack.org/openstack/nova-specs/>`__

.. _Summit: https://www.openstack.org/summit/
.. _Project Team Gathering: https://www.openstack.org/ptg/
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