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Reviewed:  https://review.openstack.org/389399
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=b89efa3ef611a1932df0c2d6e6f30315b5111a57
Submitter: Jenkins
Branch:    master

commit b89efa3ef611a1932df0c2d6e6f30315b5111a57
Author: Matt Riedemann <mriedem@xxxxxxxxxx>
Date:   Fri Nov 4 10:39:57 2016 -0400

    libvirt: prefer cinder rbd auth values over nova.conf
    
    In the case that the ceph storage backing volumes is different
    from the one backing ephemeral storage in nova, the auth values
    in the rbd connection_info could be different and not work if
    we are using the nova.conf values for ephemeral storage.
    
    This change makes the volume connection config code for rbd
    prefer the cinder connection_info values if they exist, and
    only falls back to nova config values if cinder doesn't have
    anything set.
    
    Depends-On: I4655cae3212d589177d2570403b563a83aad529a
    
    Change-Id: Idcbada705c1d38ac5fd7c600141c2de7020eae25
    Closes-Bug: #1635008


** Changed in: nova
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1635008

Title:
  rbd credentials in nova.conf overwrite connection_info from cinder

Status in OpenStack Compute (nova):
  Fix Released

Bug description:
  Description
  ===========
  When rbd_user and rbd_secret_uuid are set in nova.conf, they overwrite
  the values returned from Cinder in the connection_info object.
  Therefore both ephemeral storage in Ceph, and multiple Cinder volume
  Ceph backends can't be used at the same time.

  Steps to reproduce
  ==================
  * In nova.conf, set rbd_user, rbd_secret_uuid, images_rbd_pool, etc.
  * Booting a VMs. SUCCESS
  * Try attaching a volume from a pool with different credentials than
  the ephemeral one. FAILS
  * Unset rbd_user, rbd_secret_uuid
  * Try attaching a volume from a pool with different credentials than
  the ephemeral one. SUCCESS
  * Try booting a VM. FAILS

  Expected result
  ===============
  Both ephemeral and multiple ceph backends should work at the same time.

  Actual result
  =============
  Either ephemeral or multiple ceph backends works at the same time. 

  https://github.com/openstack/nova/blob/4f91ed3a547965ed96a22520edcfb783e7936e95/nova/virt/libvirt/volume/net.py#L89-L95

  Environment
  ===========
  1. Exact version of OpenStack you are running. 

  Liberty

  Name        : openstack-nova
  Arch        : noarch
  Epoch       : 1
  Version     : 12.0.4
  Release     : 8.el7ost
  Size        : 14 k
  Repo        : rhel-7-server-openstack-8-rpms-local

  
  2. Which hypervisor did you use?
     
  Compiled against library: libvirt 1.2.17
  Using library: libvirt 1.2.17
  Using API: QEMU 1.2.17
  Running hypervisor: QEMU 2.3.0

  
  2. Which storage type did you use?

  Ceph, not sure on version.

  3. Which networking type did you use?

  Neutron with OpenVSwitch

  Logs & Configs
  ==============
  --

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