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Dimitris Aragiorgis authored
This will be useful for an external entity using RAPI that wants to modify devices of instances. The common use case for that is: "I want to add a NIC/disk to an instance. If it is running then try to hotplug the device. If not, then just add it to config." Another use case is that if we are unaware of the instance's hypervisor: "I want do add a NIC/disk to an instance and if its hypervisor is KVM try to hotplug it." For all those cases just print a warning in CheckPrereq() and disable any further hotplug related actions (and let modifications take place after reboot). Add NoHoplugSupport and HotplugIfPossible unittests an modify existing by explicitly creating successful RPC results for call_hotplug_supported. Signed-off-by: Dimitris Aragiorgis <dimara@grnet.gr> Signed-off-by: Thomas Thrainer <thomasth@google.com> Reviewed-by: Thomas Thrainer <thomasth@google.com>
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