melanie witt 82856f95c6 libvirt: Use common naming convention for ephemeral disk labels
The _create_ephemeral() method is responsible for creating ephemeral
disks with image type "raw" and formatting them with mkfs. In the case
of [libvirt]images_type "qcow2", _create_ephemeral() will create
backing files.

Currently we are not using a consistent naming convention for choosing
the filesystem label for ephemeral disks. When we create a server for
example, we go through the disks and label them "ephemeral0",
"ephemeral1", "ephemeral2", etc.

When we hard reboot a server, there is a check to create missing
backing files and if so, a new backing file will be created but instead
of being labeled "ephemeralN" the code attempts to label them with the
name of the backing file itself for example "ephemeral_1_40d1d2c". This
will fail if the filesystem used for ephemeral disks has limitations on
the length of filesystem label names (VFAT, XFS, ...). For example:

  mkfs.vfat: Label can be no longer than 11 characters

This adds a helper method for obtaining ephemeral disks filesystem
label names and uses it the same way in the few places fs_label is
specified.

Closes-Bug: #2061701

Change-Id: Id033a5760272e4fb06dee2342414b26aa16ffe24
2025-05-19 09:27:18 +00:00
2023-11-10 20:12:31 +00:00
2024-08-31 18:05:41 +09:00
2019-04-19 19:45:52 +00:00
2017-11-24 16:51:12 -05:00
2017-09-07 15:42:31 +02:00
2025-03-19 12:30:41 +00:00
2025-04-29 09:32:24 +02:00
2024-01-12 17:47:49 +09:00
2024-05-01 01:30:04 +09:00

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

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

To understand better the processes that the team is using, please refer to the
`Process document <https://docs.openstack.org/nova/latest/contributor/process.html>`__.

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/
S
Description
No description provided
Readme 258 MiB
Languages
Python 97.5%
Smarty 2.3%
Shell 0.2%