It's important to mention that Singularity does not cover the same functional scope as Docker, and therefore isn't a good alternative for all use cases. It's mu

It's important to mention that Singularity does not cover the same functional scope as Docker, and therefore isn't a good alternative for all use cases. It's much better for some, close to useless for others. To make it short: - huge pro: it relies on user rights and doesn't require root, so it's easier to trust for an admin, and to use for a non-admin; - huge con: it provides no isolation (it's not that it does a bad job at doing it: it doesn't even try, by design). There are probably many other differences, but that's what has stroke me the most. Don't get me wrong: I've only had positive feedback about it; it just isn't a one-to-one replacement for Docker.