func (d *Dispatcher) switchISO(filePath string) ([]types.BaseVirtualDeviceConfigSpec, error) {
defer trace.End(trace.Begin(filePath))
var devices object.VirtualDeviceList
var err error
log.Infof("Switching appliance iso to %s", filePath)
devices, err = d.appliance.Device(d.ctx)
if err != nil {
log.Errorf("Failed to get vm devices for appliance: %s", err)
return nil, err
}
// find the single cdrom
cd, err := devices.FindCdrom("")
if err != nil {
log.Errorf("Failed to get CD rom device from appliance: %s", err)
return nil, err
}
oldApplianceISO := cd.Backing.(*types.VirtualCdromIsoBackingInfo).FileName
if oldApplianceISO == filePath {
log.Debugf("Target file name %q is same to old one, no need to change.")
return nil, nil
}
cd = devices.InsertIso(cd, filePath)
changedDevices := object.VirtualDeviceList([]types.BaseVirtualDevice{cd})
deviceChange, err := changedDevices.ConfigSpec(types.VirtualDeviceConfigSpecOperationEdit)
if err != nil {
log.Errorf("Failed to create config spec for appliance: %s", err)
return nil, err
}
d.oldApplianceISO = oldApplianceISO
return deviceChange, nil
}