openstack/nova
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Add a prelude section for Newton

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Given Nova now uses reno files for providing release notes, that means we have
a lot of those, which could confuse people looking at those because it's huge.
Now that we're past RC2, it's time for us to write a summary about the main
important things we want to raise. PTL, your dog.

Change-Id: I46565fa17b4743e8f5eb8d6fd48b47515a78f47e
This commit is contained in:
Sylvain Bauza 2016-09-30 11:43:32 +02:00
parent 59653c6f46
commit 0c6c2dd591
1 changed files with 30 additions and 0 deletions
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releasenotes/notes/newton_prelude-6a6566c8753d147c.yaml Normal file
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---
prelude: >
Nova 14.0.0 release is including a lot of new features and bugfixes. It can
be extremely hard to mention all the changes we introduced during that
release but we beg you to read at least the upgrade section which describes
the required modifications that you need to do for upgrading your cloud
from 13.0.0 (Mitaka) to 14.0.0 (Newton).
That said, a few major changes are worth to notice here. This is not an
exhaustive list of things to notice, rather just important things you need
to know :
- Latest API microversion supported for Newton is v2.38
- Nova now provides a new placement RESTful API endpoint that is for
the moment optional where Nova compute nodes use it for providing
resources. For the moment, the nova-scheduler is not using it but we
plan to check the placement resources for Ocata. In case you plan to
rolling-upgrade the compute nodes between Newton and Ocata, please
look in the notes below how to use the new placement API.
- Cells V2 now supports booting instances for one cell v2 only. We plan
to add a multi-cell support for Ocata. You can prepare for Ocata now
by creating a cellv2 now using the nova-manage related commands, but
configuring Cells V2 is still fully optional for this cycle.
- Nova is now using Glance v2 API for getting image resources.
- API microversions 2.36 and above now deprecate the REST resources in
Nova used to proxy calls to other service type APIs (eg. /os-volumes).
We'll still supporting those until we raise our minimum API version
to 2.36 which is not planned yet (we're supporting v2.1 as of now) but
you're encouraged to stop using those resources and rather calling the
other services that provide those natively.