@types.convert(image={"type": "glance_image"},
                   flavor={"type": "nova_flavor"})
    @validation.image_valid_on_flavor("flavor", "image")
    @validation.required_services(consts.Service.NOVA)
    @validation.required_openstack(users=True)
    @scenario.configure(context={})
    def boot_server(self, image, flavor, auto_assign_nic=False, **kwargs):
        """Boot a server.
        Assumes that cleanup is done elsewhere.
        :param image: image to be used to boot an instance
        :param flavor: flavor to be used to boot an instance
        :param auto_assign_nic: True if NICs should be assigned
        :param kwargs: Optional additional arguments for server creation
        """
        self._boot_server(image, flavor, =auto_assign_nic, **kwargs)