Enable magnum containers to easily use cinder volumes

Registered by Kai Qiang Wu(Kennan)

Right now, magnum not have a good intergration with cinder. As k8s, swarm, mesos was created. but user can not easily used in underly cinder service. We need enable cinder service to make end-users can easy use that with containers.

Docker 1.9 has near full capacity to operate with volume, it also support many plugins, (some plugins like rexray has support openstack cinder intergation ) for plugins check this: http://docs.docker.com/engine/extend/plugins/

For k8s, check this: this is a raw example, it is not good as docker ,

For mesos, we not dig it more details.

So this bp should focus to enable cinder block service to ge consumed by magnum. a simple like this.

magnum baymodel --volume-dirver <> swarmbaymodel
magnum baymodel --volume-dirver <> k8sbaymodel

magnum create a bay enable swarm or k8s backend work with cinder, then user can use that to make containers data volumes work


ALso one line about k8s https://github.com/kubernetes/kubernetes/blob/master/docs/user-guide/persistent-volumes.md

Blueprint information

Adrian Otto
Kai Qiang Wu(Kennan)
Kai Qiang Wu(Kennan)
Series goal:
Accepted for ocata
Milestone target:
milestone icon ocata-1
Completed by
Spyros Trigazis

Related branches



strigazi @ Tue Mar 20 09:24:36 UTC 2018
For kubernetes cluster we have the cloud-provider configured and for swarm rexray.
Gerrit topic: https://review.openstack.org/#q,topic:bp/magnum-integrate-with-cinder,n,z

Addressed by: https://review.openstack.org/265057
    Propose Magnum Volume Integration Model

Addressed by: https://review.openstack.org/266223
    Adds volume_driver Support of Container Persistent Storage

Addressed by: https://review.openstack.org/269405
    Validates baymodel volume_driver requests

Addressed by: https://review.openstack.org/273329
    Validates baymodel volume_driver patch requests

Addressed by: https://review.openstack.org/274123
    Get region_name that volume_driver rexray region_name needs

Addressed by: https://review.openstack.org/275034
    Add Container Volume Model into Swarm Heat Templates

Addressed by: https://review.openstack.org/282595
    Add Container Volume Model into Mesos Heat Templates

Addressed by: https://review.openstack.org/285954
    Add Container Volume Model into Kubernetes Heat Templates

Addressed by: https://review.openstack.org/287648
    Add the container volume integration document to help user to know how to use the container volume integration in kubernetes and mesos.

Addressed by: https://review.openstack.org/336594
    [WIP][PoC] Add rexray volume driver to Swarm


Work Items

Work items:
Add cinder support in Kubernetes CoreOS driver: TODO

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