Run CARLA physics container as non-root user#11
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CarlaUE4 previously ran as root, which is unnecessary and violates the principle of least privilege. Create a dedicated system user "carla", give it ownership of the CARLA install tree and workdir, set HOME so xdg-user-dirs writes land in a writable location, and drop to that user before ENTRYPOINT. CARLA_UID / CARLA_GID build args let callers align the in-container UID with a host user when bind-mounting. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
docker/carla/physics.Dockerfilenow creates a dedicatedcarlasystem user (UID/GID configurable viaCARLA_UID/CARLA_GIDbuild args) and switches to it beforeENTRYPOINT./opt/carla,/work, and/home/carlasoCarlaUE4.shcan still write intoSaved/andxdg-user-dirshas a writable$HOME.Motivation
CarlaUE4 was running as root, which is unnecessary for the Unreal server and violates the principle of least privilege. Running as an unprivileged user keeps container escapes and rogue writes contained.
Test plan
docker build --check -f docker/carla/physics.Dockerfile .— cleanpre-commit run --files docker/carla/physics.Dockerfilephysics=carlawizard profile smoke test (CI)🤖 Generated with Claude Code