[Bug 1457517] Re: Unable to boot from volume when flavor disk too small

[OpenStack Infra]

Reviewed:  https://review.openstack.org/213308
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=8794b938dcb983b7c918718807c2396cb255b4ce
Submitter: Jenkins
Branch:    stable/kilo

commit 8794b938dcb983b7c918718807c2396cb255b4ce
Author: Matthew Booth <mbooth at redhat.com>
Date:   Wed Jul 22 14:56:52 2015 +0100

    Don't check flavor disk size when booting from volume
    
    When creating a volume from an image, cinder copies the image metadata
    into volume properties. When booting from the volume, we read this
    metadata from the volume and use it as image metadata once again.
    
    While fixing the check against min_ram,
    change I861a78b5c7efa71e4bf7206d388b8d0d8048c78e introduced a
    regression which prevents a user from booting a volume which is larger
    than the flavor's disk. As we are not creating this disk, this check
    does not make sense. Similarly, it checks the image metadata's
    min_disk against the flavor disk size, which is not being used.
    
    This change leaves the image metadata check unaltered when creating a
    flavor disk. When booting from a volume, we check min_disk from image
    metadata against the actual size of the volume. We don't check the
    volume size at all. The check against min_ram is retained unaltered.
    
    Closes-Bug: #1457517
    Closes-Bug: #1459491
    Closes-Bug: #1466305
    Change-Id: I264493172da20b664df571e32876030246c2a87c
    (cherry picked from commit 642c986f0636d52a9ba279c87e25082b4aa9b3b8)


** Tags added: in-stable-kilo

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Title:
  Unable to boot from volume when flavor disk too small

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