All DS series bikes have rear rack mounts. You need the kind with two arms at the top, one to attach to each bolt on the seatstays.
It might be helpful to stop by a bike shop to look at them in person and make sure they clear your disc brakes; that's the only tricky spot. If you don't want to do that, online models should specify "disc-compatible" or something similar.
The front sus means you won't want to use a front rack, and any front fender you find that fits will have pretty minimal coverage