nova/releasenotes/notes/validate-expired-user-tokens-57a265cb4ee4ba6f.yaml
Sarafraj Singh 596e8de5eb Add service_token for nova-neutron interaction
Service token will be passed along with user token to communicate with
services when dealing with long running tasks like live migration.

This change addresses adding service_token to the request when nova
requests neutron session.

Implements: blueprint use-service-tokens
Change-Id: I5e6d6dfeda3673d38bab0bc692c50ca74eb90fc1
2017-01-12 14:33:58 -06:00

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YAML

---
features:
- Added support for Keystone middleware feature where if service token is
sent along with the user token, then it will ignore the expiration of user
token. This helps deal with issues of user tokens expiring during long
running operations, such as live-migration where nova tries to access
Cinder and Neutron at the end of the operation using the user token that
has expired. In order to use this functionality a service user needs to
be created. Add service user configurations in ``nova.conf`` under
``service_user`` group and set ``send_service_user_token`` flag to
``True``. The minimum Keytone API version 3.8 and Keystone middleware
version 4.12.0 is required to use this functionality.
This only currently works with Nova - Cinder and Nova - Neutron API
interactions.