OpenStack Compute - Juno Updates
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The document discusses the status and developments of OpenStack Compute up to the Icehouse release and outlines goals for the upcoming Juno release. Key achievements in Icehouse include 65 blueprints implemented and several API improvements, while Juno will focus on enhancing CI systems, live upgrades, and introducing a microversioned v3 API. Ongoing work includes database support expansions and driver enhancements for VMware and libvirt.
![Where did we end up in Icehouse?
● Limited live upgrades
● Upgrade controllers and set:
[upgrade_levels]
compute=icehouse-compat
● Then upgrade compute nodes slowly
● Unset:
[upgrade_levels]
compute=icehouse-compat](https://image.slidesharecdn.com/novajuno-140626164309-phpapp02/85/OpenStack-Compute-Juno-Updates-5-320.jpg)
OpenStack Compute - Juno Updates
- 1. OpenStack Compute PTL Michael Still OpenStack Compute in Juno
- 2. What is OpenStack Compute?
- 3. Themes for Icehouse? ● Better CI will result in a more reliable experience for operators ● Work towards live upgrade ● Cleanups of our APIs to make them easier to use
- 4. Where did we end up in Icehouse? ● 65 blueprints implemented, 652 bugs fixed ● 293 developers submitted at least one patch ● 42 developers had at least ten patches
- 5. Where did we end up in Icehouse? ● Limited live upgrades ● Upgrade controllers and set: [upgrade_levels] compute=icehouse-compat ● Then upgrade compute nodes slowly ● Unset: [upgrade_levels] compute=icehouse-compat
- 6. Where did we end up in Icehouse? ● API ● There was a lot of work on a v3 API in Icehouse, but API users should remember this work is still considered experimental ● You can now permanently remove decommissioned compute nodes ● XML support was deprecated in Icehouse, and will be removed soon. This should be transparent to most users.
- 7. Where did we end up in Icehouse? ● Other ● File injection is now disabled by default, use metadata server or config drive instead ● Hypervisor driver specific flags have been moved into groups related to the relevant driver to make the flag namespace less confusing ● There was an experimental Docker driver which has moved from nova to stackforge in this release ● The PowerVM driver has been removed at IBM’s request
- 8. Themes for Juno? ● Continued improvements to our CI systems ● Work towards live upgrade ● The experimental v3 API becoming a series of microversions on top of our current v2 API
- 9. Where are we going in Juno? ● New specifications process ● A formal document which defines what is being implemented ● Which is reviewed separately from the code ● Operators encouraged to participate ● We still have a large number of specifications under review ● A summary of currently approved specifications: ● https://wiki.openstack.org/wiki/Nova/Juno-Specs
- 10. Where are we going in Juno? ● Further work on live upgrades ● We want to be able to support live upgrades, but in order to do this we need to move to an internal object model with versioned objects. This is a lot of work, but is underway.
- 11. Where are we going in Juno? ● API ● The v3 API will be presented as a series of microversions to v2 instead of a completely new API. The first of these microversions will be a v2.1 with stricter type checking. ● Clients will negotiate which microversions they support with the API servers, so backwards compatibility is maintained. ● Better support for cross project request ids is under way ● Better tagging support in EC2
- 12. Where are we going in Juno? ● Scheduler ● There is work underway to allow us to split out the scheduler into its own service that other projects can use as well. We need to rearrange a fair bit of code to enable this though.
- 13. Where are we going in Juno? ● SQL Database ● Support for DB2 as a SQL database is proposed.
- 14. Where are we going in Juno? ● libvirt driver ● Support for starting LXC containers from a block device ● Use of libvirt storage pools ● NFV enabling features, including: ● PCI-SRIOV passthrough support ● NUMA aware scheduling
- 15. Where are we going in Juno? ● vmware driver ● Refactoring of driver code to make it more maintainable ● Support for: ● hot plug network interfaces ● ephemeral disks ● vSAN data stores ● booting OVA images
- 16. Questions?