Connections between the myth of Sisyphus and "If this is a man" (novel depicting life in concentration camps)?

The myth of Sisyphus is the one about the Greek mortal being condemned by the gods to keep rolling a rock up the mountain and is apparently ociated with the novel "If This is a Man" by Primo Levi, which presents the author's testimony of the Holocaust (i.e. life in the concentration camp Auschwitz). The obvious connection between the two texts is that of hopeless and meaningless labor, in which case Primo Levi is Sisyphus, rolling the rock up the mountain ever day in the camp (figuratively). But what other connections are there?