Can't update the read_only access mode for cinder volume

[huangtianhua]

1. create a stack with a cinder volume, nova server, and attach the volume to the server:

heat_template_version: 2015-04-30
resources:
  cv:
    type: OS::Cinder::Volume
    properties:
      size: 2
  my_s:
    type: OS::Nova::Server
    properties:
      flavor: 1
      image: cirros-0.3.0-x86_64-disk
  svatt:
    type: OS::Cinder::VolumeAttachment
    properties:
      instance_uuid: {get_resource: my_s}
      volume_id: {get_resource: cv}

2. the stack create complete, now update the stack to set 'read_only' access mode for the volume
**************
resources:
  cv:
    type: OS::Cinder::Volume
    properties:
      size: 2
      read_only: true
*******************
3. stack will update failed, cinder raise the error reason:
Invalid volume: Volumed 3f9957c-78d0-40d4-b4d9-37cf8dffa1b5 status must be available to update readonly flag, but current status is: in-use.

So cinder supports to update the access mode when the volume is in available, not creating, not in-use or other states.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/218567

[Rabi Mishra (rabi)]

Can you please clarify the last point in your description? It seems cinder only allows it only when the status is available[1].

https://github.com/openstack/cinder/blob/master/cinder/volume/api.py#L1400

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/218567
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=3b37f1021dd4c1389f0f45157b5a7adba71d5a5c
Submitter: Jenkins
Branch: master

commit 3b37f1021dd4c1389f0f45157b5a7adba71d5a5c
Author: huangtianhua <email address hidden>
Date: Sat Aug 29 18:48:49 2015 +0800

    Make sure update access mode for volume in available

    Cinder only supports update 'read_only' access mode for
    volumes which are in available status.
    This patch will make sure to update access mode for
    volume in available to avoid create/update failed.

    Change-Id: Iccd1918f314394e00095e4e718e067dc68fe95df
    Closes-Bug: #1490120

[Thierry Carrez (ttx)]

This issue was fixed in the openstack/heat 6.0.0.0b2 development milestone.

[Doug Hellmann (doug-hellmann)]

This issue was fixed in the openstack/heat 6.0.0.0b2 development milestone.