129 lines
5.4 KiB
ReStructuredText
129 lines
5.4 KiB
ReStructuredText
.. _newton-priorities:
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=========================
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Newton Project Priorities
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=========================
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List of themes (in the form of use cases) the nova development team is
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prioritizing in Newton (in no particular order).
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+-------------------------------------------+-----------------------+
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| Priority | Primary Contacts |
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+===========================================+=======================+
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| `Cells V2`_ | `Andrew Laski`_ |
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+-------------------------------------------+-----------------------+
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| `Scheduler`_ | `Jay Pipes`_ |
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+-------------------------------------------+-----------------------+
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| `API Improvements`_ | `Andrew Laski`_ |
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| | `Sean Dague`_ |
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+-------------------------------------------+-----------------------+
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| `os-vif Integration`_ | `Daniel Berrange`_ |
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+-------------------------------------------+-----------------------+
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| `Libvirt Storage Pools (Live Migration)`_ | `Matthew Booth`_ |
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+-------------------------------------------+-----------------------+
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| `Get Me a Network`_ | `Matt Riedemann`_ |
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+-------------------------------------------+-----------------------+
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| `Glance v2 Integration`_ | `Mike Fedosin`_ |
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+-------------------------------------------+-----------------------+
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.. _Andrew Laski: https://launchpad.net/~alaski
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.. _Jay Pipes: https://launchpad.net/~jaypipes
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.. _Sean Dague: https://launchpad.net/~sdague
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.. _Daniel Berrange: https://launchpad.net/~berrange
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.. _Matthew Booth: https://launchpad.net/~mbooth-9
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.. _Matt Riedemann: https://launchpad.net/~mriedem
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.. _Mike Fedosin: https://launchpad.net/~mfedosin
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Cells v2
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--------
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A lot of the design and planning for Cells v2 happened in the Mitaka release
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but unfortunately not a lot of code was merged.
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In Newton we plan to execute on several parts of the Cells v2 roadmap:
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* Online data migration from the cell DB to the global API DB.
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* Writing commands to help with upgrading to a Cells v2 deployment.
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* Testing a single Cells v2 (cell of one) deployment in the gate using a
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multi-node job along with upgrade testing in grenade.
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* Documentation of the upgrade and deployment process for Cells v2.
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Supporting multiple v2 cells is going to be a stretch goal.
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Scheduler
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---------
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In Mitaka we laid some groundwork for the scheduler refactor for resource
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providers.
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In Newton we plan to execute on:
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* Online data migrations to the new resource provider inventory and allocation
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tables along with moving those to the API DB.
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* Cleanup how the resource tracker deals with PCI devices.
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* Migrate PCI and NUMA resources to the new tables.
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* Model generic resource pools for things like IP subnet allocation pools and
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shared storage pools.
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* Create a separate placement REST API for generic resource pools.
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Defining how to model and standardize host capabilities is going to be a
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stretch goal.
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API Improvements
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----------------
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In Newton we will focus on two major API improvement efforts:
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* Defining API policy defaults in code with oslo.policy. This will simplify
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deployments so that operators only need to populate the policy.json file with
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overrides, otherwise the defaults will all be in code like the config
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options. This will also ensure we have API policy rules defined for all
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actions.
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* Completely moving the api-ref documentation into the Nova code tree so it's
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owned by the Nova team. As part of this work, the api-ref documentation will
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be scrubbed to fix errors, fill gaps, and add support for documenting
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microversions.
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os-vif Integration
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------------------
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The os-vif library was created in the Mitaka release. It has an object model
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and contains linuxbridge and openvswitch reference implementations. It also
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integrates with oslo.privsep.
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In Newton we plan to integrate the library with Nova to start replacing parts
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of the libvirt driver's VIF plugging code with os-vif.
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Libvirt Storage Pools (Live Migration)
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--------------------------------------
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In Mitaka, a lot of work went into improving the user experience for live
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migration and cleaning up the code so it's more maintainable.
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In Newton there will be a focused effort on cleaning up technical debt in the
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libvirt imagebackend code so it's more maintainable. Then we'll build on that
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to use libvirt storage pools, which will then be used for migrating instances
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rather than setting up SSH keys between computes.
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Get Me a Network
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----------------
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In Mitaka, the Neutron team delivered the ``auto-allocated-topology`` API which
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will setup simple tenant networking.
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In Newton, Nova will leverage that Neutron API to make booting an instance and
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getting networking automatically provisioned a simple process for the end user.
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This is also required for the eventual removal of nova-network.
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Glance v2 Integration
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---------------------
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We've been talking about this since Kilo. Glance wants to remove their v1 API.
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We have a plan for adding the Glance v2 support into the nova.image.api code
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and write it in such a way that we can easily drop the v1 code in a subsequent
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release when Glance drops support for their v1 API.
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The Nova os-images proxy API will also be deprecated since there will be
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unavoidable incompatibilities when translating from the Glance v2 API to the
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Nova os-images proxy API, which is based on Glance v1.
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