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[Matt Riedemann <mriedem.os@xxxxxxxxx>]

** Summary changed:

- block_device_mapping_v2 cannot work with Pike
+ rbd volume disk device config has wrong scsi unit address since pike

** Changed in: cinder
       Status: New => Invalid

** Changed in: nova
       Status: New => Confirmed

** Also affects: nova/pike
   Importance: Undecided
       Status: New

** Also affects: nova/queens
   Importance: Undecided
       Status: New

** Changed in: nova/queens
       Status: New => Confirmed

** Changed in: nova/pike
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1753394

Title:
  rbd volume disk device config has wrong scsi unit address since pike

Status in Cinder:
  Invalid
Status in OpenStack Compute (nova):
  Confirmed
Status in OpenStack Compute (nova) pike series:
  Confirmed
Status in OpenStack Compute (nova) queens series:
  Confirmed

Bug description:
  Yaml:
   vol_omu:
      type: OS::Heat::ResourceGroup
      properties:
        count: 2
        resource_def:
          type: OS::Cinder::Volume
          properties:
            name: OMU-Volume
            source_volid: { get_param: omu_volume_id }
            size: 22

    OMU-0:
      type: OS::Nova::Server
      properties:
        name: OMU-0
        image:  { get_param: ipxe_image_id }
        flavor: { get_param: flavor_omu }
        key_name: { get_param: key_name }
        networks: { get_attr: [OMU_0_ports, port-map] }
        block_device_mapping_v2:
          - { "boot_index": -1, "disk_bus": "scsi", "volume_id": { get_attr: [vol_omu, resource.0] } }
          - { "boot_index": -1, "disk_bus": "scsi", "volume_id": { get_attr: [vol_omu, resource.1] } }

  Related xml content for OpenStack Newton:
  <disk type='network' device='disk'>
    <driver name='qemu' type='raw' cache='none'/>
    <source protocol='rbd' name='cinder-volumes/volume-20807bd7-d1e7-4f87-a94d-f8234945b433'>
      <host name='172.168.42.3' port='6789'/>
      <host name='172.168.42.4' port='6789'/>
      <host name='172.168.42.5' port='6789'/>
    </source>
    <target dev='sda' bus='scsi'/>
    <serial>20807bd7-d1e7-4f87-a94d-f8234945b433</serial>
    <address type='drive' controller='0' bus='0' target='0' unit='0'/>
  </disk>
  <disk type='network' device='disk'>
    <driver name='qemu' type='raw' cache='none'/>
    <source protocol='rbd' name='cinder-volumes/volume-cd63e6f9-87f9-4c6b-ba87-bd4ff3c113c4'>
      <host name='172.168.42.3' port='6789'/>
      <host name='172.168.42.4' port='6789'/>
      <host name='172.168.42.5' port='6789'/>
    </source>
    <target dev='sdb' bus='scsi'/>
    <serial>cd63e6f9-87f9-4c6b-ba87-bd4ff3c113c4</serial>
    <address type='drive' controller='0' bus='0' target='0' unit='1'/>
  </disk>

  Related xml content for OpenStack Pike:
   <disk type='network' device='disk'>
    <driver name='qemu' type='raw' cache='none' discard='unmap'/>
    <auth username='cinder'>
      <secret type='ceph' uuid='6c373d85-665f-4fbf-8bb5-880181870709'/>
    </auth>
    <source protocol='rbd' name='volumes/volume-029d943d-60ad-4f90-87b7-a2e7a20394f9'>
      <host name='192.168.1.29' port='6789'/>
      <host name='192.168.1.30' port='6789'/>
      <host name='192.168.1.31' port='6789'/>
    </source>
    <target dev='sda' bus='scsi'/>
    <serial>029d943d-60ad-4f90-87b7-a2e7a20394f9</serial>
    <address type='drive' controller='0' bus='0' target='0' unit='0'/>
  </disk>
  <disk type='network' device='disk'>
    <driver name='qemu' type='raw' cache='none' discard='unmap'/>
    <auth username='cinder'>
      <secret type='ceph' uuid='6c373d85-665f-4fbf-8bb5-880181870709'/>
    </auth>
    <source protocol='rbd' name='volumes/volume-0dc8e3a2-6fa9-4530-bd5b-db6cef83b9f3'>
      <host name='192.168.1.29' port='6789'/>
      <host name='192.168.1.30' port='6789'/>
      <host name='192.168.1.31' port='6789'/>
    </source>
    <target dev='sdb' bus='scsi'/>
    <serial>0dc8e3a2-6fa9-4530-bd5b-db6cef83b9f3</serial>
    <address type='drive' controller='0' bus='0' target='0' unit='0'/>
  </disk>

  The problem happened on Pike.
  Two disks have the same unit ID:
  <address type='drive' controller='0' bus='0' target='0' unit='0'/>

  And error log:
  qemu-kvm: -object secret,id=scsi0-0-0-0-secret0,data=flYlAwpFVjBHcQ/NI3UUe+bahMmauiudlUbN3KW3RIk=,keyid=masterKey0,iv=7FE+TU876kfSu2Yrrm3uBQ==,format=base64:
  Duplicate ID 'scsi0-0-0-0-secret0' for object

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