nova/releasenotes/notes/flavor-extra-spec-image-property-validation-7310954ba3822477.yaml
Chris Friesen 5e7b840e48 Flavor extra spec and image properties validation from API
Validate the combination of the flavor extra-specs and image properties
as early as possible once they're both known (since you can specify
mutually-incompatible changes in the two places). If validation failed
then synchronously return error to user. We need to do this anywhere
the flavor or image changes, so basically instance creation, rebuild,
and resize.

- Rename _check_requested_image() to _validate_flavor_image() and add
  a call from the resize code path.  (It's already called for create
  and rebuild.)
- In _validate_flavor_image() add new checks to validate numa related
  options from flavor and image including CPU policy, CPU thread
  policy, CPU topology, memory topology, hugepages, CPU pinning,
  serial ports, realtime mask, etc.
- Added new 400 exceptions in Server API correspondent to added
  validations.

blueprint: flavor-extra-spec-image-property-validation
Change-Id: I06fad233006c7bab14749a51ffa226c3801f951b
Signed-off-by: Jack Ding <jack.ding@windriver.com>
Signed-off-by: Chris Friesen <chris.friesen@windriver.com>
2019-03-05 12:05:06 -06:00

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YAML

---
upgrade:
- |
With added validations for flavor extra-specs and image properties, the
APIs for server create, resize and rebuild will now return 400 exceptions
where they did not before due to the extra-specs or properties not being
properly formatted or being mutually incompatible.
For all three actions we will now check both the flavor and image to
validate the CPU policy, CPU thread policy, CPU topology, memory topology,
hugepages, serial ports, realtime CPU mask, NUMA topology details, CPU
pinning, and a few other things.
The main advantage to this is to catch invalid configurations as early
as possible so that we can return a useful error to the user rather than
fail later on much further down the stack where the operator would have
to get involved.