api-ref: add warning about force evacuate for ironic
This adds to the existing warning about forcing a host during evacuate and mentions how you really really shouldn't be doing that if the instance is managed by the ironic driver since those are 1:M with host:node relationships, and since you can't specify a node when forcing the evacuate, nova will randomly pick a node from the list for the given host and assign resource allocations to that node which may already be fully allocated. Change-Id: I8ae34399d32b2762a67e897807ffa2298e796c4c
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@ -2689,6 +2689,11 @@ force_evacuate:
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instance to the specified host. It is recommended to either not specify
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a host so that the scheduler will pick one, or specify a host without
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``force=True`` set.
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Furthermore, this should not be specified when evacuating instances
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managed by a clustered hypervisor driver like ironic since you
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cannot specify a node, so the compute service will pick a node randomly
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which may not be able to accomodate the instance.
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in: body
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required: false
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type: boolean
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