There's a documentary called "White Diamond", filmed alongside her prep for her "Showgirl: Homecoming" (the previously-cancelled leg of her "Showgirl" tour, after she had to interrupt it for cancer treatment). Much of it is of course focused on Minogue herself and her battle with the disease & return to form, but it also has behind the scenes content on how the show itself is put together, including some footage in the server room.

I've seen similar reporting here and there in TV coverage of her show prep and so on, after an accidental viewing of "White Diamond" made me an interested party.