Allow to specify a user SoftwareConfig template
We could use Heat resource_registry to allow the user to provide a custom SoftwareConfig that will be called by each node/master.
Example of typical usage : register a CA.
The implementation would be something like :
- add a new entry in MultipartMime, with a corresponding resource with a custom type like User::SoftwareC
- define this User::SoftwareC
- use resource_registry to map the provided user SoftwareConfig template if needed
Should we provide 2 hooks, one for before the various other scripts and one for after ?
I would say a single hook after would be enough but I am unsure.
Blueprint information
- Status:
- Not started
- Approver:
- Adrian Otto
- Priority:
- Medium
- Drafter:
- Mathieu Velten
- Direction:
- Approved
- Assignee:
- Spyros Trigazis
- Definition:
- New
- Series goal:
- Accepted for rocky
- Implementation:
-
Unknown
- Milestone target:
-
rocky-2
- Started by
- Completed by
Related branches
Related bugs
Sprints
Whiteboard
(ricardo_rocha): another example of a feature that does not make sense upstream but we need:
- CERN applications access an internal distributed filesystem called cvmfs for installation of analysis software (these are http caches with clients using fuse mounts)
- we've written a docker volume driver for it, but need to have the magnum hosts configured to get the bind mounts working properly (and launch the docker-volume-cvmfs daemon), without having every container requiring --privileged
- a hook that would allow us to extend the templates without changing the upstream ones would make maintenance and upgrades a bit easier
(hongbin): Ricardo, the approach sounds good to me. I think we can start with a single hook and add another hook later if needed. BTW, could I know who is going to implement this BP so that I can assign the BP to him/her.
(ricardo_rocha): That would be Spyros :) Thanks.
Gerrit topic: https:/
Addressed by: https:/
[WIP] Allow Bay templates to include Heat environments
Addressed by: https:/
Allow Bay templates to include Heat environments
Gerrit topic: https:/
Addressed by: https:/
WIP: Add pre_hook interface
Gerrit topic: https:/
Gerrit topic: https:/
