My recent experience with getting an app deployed from Gitlab to a kubernetes cluster on DigitalOcean was exactly like this. There were like 3 or 4 different third-party technologies I was expected to set up with absolutely no explanation of what problem they're solving, and there was a bunch of steps where I had to supply names or paths as command-line arguments with no guidance on what these values should contain (is it arbitrary? Does it need to match something else?)

Mind you, I have relatively good Docker experience (wrote Dockerfiles, have a pretty extensive Docker-Compose - based home server with ~15 services) so I'm not new to containers at all. But man, the documentation for all these tools was worse than useless.