Public bug reported:
Currently, after an instance launched with bootable volume and flavor
with non-zero disk. If we resize this instance to an flavor with zero
disk, Nova API will throw exception.
As for volume-backed instance, the root volume doesn't occupy any space
in nova-compute node. So it should not be limited by flavor's root_gb.
** Affects: nova
Importance: Undecided
Assignee: Zhenyu Zheng (zhengzhenyu)
Status: New
** Changed in: nova
Assignee: (unassigned) => Zhenyu Zheng (zhengzhenyu)
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https://bugs.launchpad.net/bugs/1480040
Title:
Allow resize root_gb to 0 for volume-backed instances
Status in OpenStack Compute (nova):
New
Bug description:
Currently, after an instance launched with bootable volume and flavor
with non-zero disk. If we resize this instance to an flavor with zero
disk, Nova API will throw exception.
As for volume-backed instance, the root volume doesn't occupy any
space in nova-compute node. So it should not be limited by flavor's
root_gb.
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https://bugs.launchpad.net/nova/+bug/1480040/+subscriptions
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