Ubuntu / Debian · pro · solved in-browser (no VM needed) · 3 tiered hints
Write /home/player/user-data, a cloud-config that creates a login user. The first line must be #cloud-config. Add a top-level users: list with one entry named deploy that has passwordless sudo (sudo: ALL=(ALL) NOPASSWD:ALL), is in the docker group, and uses /bin/bash as its shell. (Authored config, graded structurally — the engine isn't run here.)
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Debian-family specifics: apt, packaging and distro conventions.
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