When I renewed some raspberries canes a couple of years ago, I had one plant over. I planted this one in a 10 litre polypot and it has gone on to produce a good plant and fruit well. I think it would have been better again in a larger tub as it must have exshausted the compost it is in, but I've finally found a spot for it to be planted out in this autumn. I think if you space them well enough apart and your container is large enough they could do well. They will need regular watering and feeding, also the soil/compost may need to be replaced in time.