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发表于 2022-10-20 14:12:56
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, b) f# `8 j# Z6 f4 eI 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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* e5 A* w0 X% ?+ p# z+ JImage c1d9.... is unacceptable: Unable to rebuild with a different image for a volume-backed server
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How can I rebuild volume-backend server?
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- s7 l7 G8 p5 D9 Aasked May 18, 2021 at 11:34# u$ I4 y) L1 ~' G
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1 Answer
9 Y7 A! K ]2 y2 S }# |Sorted by:
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6 a# g+ I4 w7 ?9 i* |0 [* IAs noted in Openstack docs [1], rebuild is not supported for volume-based VMs.4 A% F% S( M! l/ L; r0 o+ e
# g4 n% h' Y, h$ n9 }& c7 KAssuming 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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For Ceph based backend, it would be something like; b& |% {: @) E/ S$ K
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openstack volume show <...> => Get pool/path from rbd backend
. g/ B) C9 |6 ]. E4 D+ s& Ropenstack image show <...> => Get pool/path from rbd backend
5 c/ |7 f2 Z6 o" Fopenstack server stop <VM> => Stop the VM4 K9 U X( t5 p; B
: m$ A. i* s3 A: orbd -p <POOL NAME> mv <VM VOLUME UUID> <VM VOLUME UUID>.old e+ T* r+ g5 D' n
rbd -p <POOL NAME> cp <IMAGE VOLUME UUID> <VM VOLUME UUID> ' R/ n9 u9 W6 C. U* ~* w# E: `( s
Once the copy finishes, start the VM
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8 k& Z* ], d, e8 u Fopenstack server start <VM> |
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发表于 2022-10-20 13:09:23