Availability zone support with Cells
Support availability zones when using Cells API
Blueprint information
- Status:
- Not started
- Approver:
- None
- Priority:
- Undefined
- Drafter:
- Sam Morrison
- Direction:
- Needs approval
- Assignee:
- None
- Definition:
- Drafting
- Series goal:
- None
- Implementation:
-
Unknown
- Milestone target:
- None
- Started by
- Completed by
Related branches
Related bugs
Sprints
Whiteboard
AIMS
===
* Support API request to list availability zones
* Cells scheduler filter to direct instance requests that specify availability_zone to cells that have the availability zone
Things to solve
=========
* A cell needs to advertise it's supported availability_zones
* Can piggy back on capability updates.
* get_instance_
* On instance_update get instances AZ and put into system_metadata (this is then traversed upwards to api level cell)
* If cells api enabled use system_metadata as opposed to get_host_az
* get_availabilit
* If using cells api get the list of AZs from the capability updates
AIMS
===
* Support API request to list availability zones
* Cells scheduler filter to direct instance requests that specify availability_zone to cells that have the availability zone
Things to solve
=========
* A cell needs to advertise it's supported availability_zones
* Can piggy back on capability updates.
* get_instance_
* On instance_update get instances AZ and put into system_metadata (this is then traversed upwards to api level cell)
* If cells api enabled use system_metadata as opposed to get_host_az
* get_availabilit
* If using cells api get the list of AZs from the capability updates
If you are still working on this, please re-submit via nova-specs. If not, please mark as obsolete, and add a quick comment to describe why. --johnthetubaguy (20th April 2014)
