yahoo-eng-team team mailing list archive

[Justin Hammond <runningempty@xxxxxxxxx>]

Public bug reported:

This is a rework and re-submission of the old blueprint:
https://blueprints.launchpad.net/neutron/+spec/versioned-objects

We are looking to improve the way we deal with versioning (of all sorts db/rpc/rest/templates/plugins). Nova has come up with the idea of versioned objects, that Ironic has also now used. This has now been proposed as an oslo library: https://review.openstack.org/#/c/127532/
And it has be accepted. https://github.com/openstack/oslo.versionedobjects
Also heat's versioned objects is base on oslo. oslo.versionedobjects

Versioned-objects will help us deal with DB schema being at a different
version than the code expects. This will allow Neutron to be operated
safely during upgrades.

Looking forward as we pass more and more data over RPC we can make use
of versioned-objects to ensure upgrades happen without spreading the
version dependent code across the code base.

** Affects: neutron
     Importance: Undecided
     Assignee: Justin Hammond (justin-hammond)
         Status: New


** Tags: rfe

** Changed in: neutron
     Assignee: (unassigned) => Justin Hammond (justin-hammond)

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https://bugs.launchpad.net/bugs/1522102

Title:
  use oslo-versioned-objects to help with upgrades

Status in neutron:
  New

Bug description:
  This is a rework and re-submission of the old blueprint:
  https://blueprints.launchpad.net/neutron/+spec/versioned-objects

  We are looking to improve the way we deal with versioning (of all sorts db/rpc/rest/templates/plugins). Nova has come up with the idea of versioned objects, that Ironic has also now used. This has now been proposed as an oslo library: https://review.openstack.org/#/c/127532/
  And it has be accepted. https://github.com/openstack/oslo.versionedobjects
  Also heat's versioned objects is base on oslo. oslo.versionedobjects

  Versioned-objects will help us deal with DB schema being at a
  different version than the code expects. This will allow Neutron to be
  operated safely during upgrades.

  Looking forward as we pass more and more data over RPC we can make use
  of versioned-objects to ensure upgrades happen without spreading the
  version dependent code across the code base.

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