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发表于 2022-10-20 14:12:56
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, X' H' f( G5 B% LI create a volume then I use it to create server. I would like to rebuild this server such that its image is changed. When I call nova rebuild api with a new image, it is said:
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3 \, _: L7 T+ l. Y2 K9 C" AImage c1d9.... is unacceptable: Unable to rebuild with a different image for a volume-backed server
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c9 C0 W3 T* b3 D. q7 e8 W+ UHow can I rebuild volume-backend server?: B7 N" ?) x3 a" J8 y: L# }6 ?
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openstackopenstack-nova
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$ k6 y, E( e" L& @asked May 18, 2021 at 11:343 _; A5 S2 N' v" F; q
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As noted in Openstack docs [1], rebuild is not supported for volume-based VMs., {1 `/ R# X7 t q8 T9 H& V& W# r
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Assuming you are trying to rebuild the VM with a fresh image ("factory reset"), a slightly "hacky" solution is to replace the underlying volume with the fresh image while keeping the same pool/path.
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* ~5 L' X a( t# ?/ t1 e, R& eFor Ceph based backend, it would be something like
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9 E& W/ E1 p0 U. ]6 |$ ~2 Hopenstack volume show <...> => Get pool/path from rbd backend
$ b$ O1 U) _& copenstack image show <...> => Get pool/path from rbd backend0 \8 L- F% J; J7 O3 h& |; k* w, E
openstack server stop <VM> => Stop the VM
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" Z5 k5 [9 @1 u" U* v# T1 mrbd -p <POOL NAME> mv <VM VOLUME UUID> <VM VOLUME UUID>.old6 w" }1 j. t8 L! P+ ]
rbd -p <POOL NAME> cp <IMAGE VOLUME UUID> <VM VOLUME UUID>
6 j* J: W& x: E7 zOnce the copy finishes, start the VM5 ^0 e+ t5 j G8 v, t8 S4 i1 Z
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openstack server start <VM> |
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发表于 2022-10-20 13:09:23