Dockerfile

# PROTEUS arena — HuggingFace Spaces (Docker SDK) image.
#
# Public demo posture: base dependencies ONLY (pydantic / numpy / pyyaml). The
# LLM provider SDKs (openai / anthropic / google-genai) are deliberately NOT
# installed and NO API keys are set, so the arena can never spend tokens for a
# public visitor. Human play and the offline persona/policy memory modes work
# fully; a real-model "spectate" request returns a clean 400 instead.
FROM python:3.12-slim

# HuggingFace Spaces runs the container as a non-root user with uid 1000.
RUN useradd --create-home --uid 1000 user
USER user
ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH \
    PYTHONUNBUFFERED=1
WORKDIR /home/user/app

# Install base deps from pyproject (no [providers] extra — see header).
COPY --chown=user pyproject.toml README.md ./
COPY --chown=user proteus ./proteus
RUN pip install --no-cache-dir --user .

# Writable dir for trace output (ephemeral on Spaces; fine for a demo).
RUN mkdir -p runs

# Spaces injects the port via app_port in README.md (default 7860). Run from
# the source tree so proteus/web/local/static/index.html resolves.
EXPOSE 7860
CMD ["python", "-m", "proteus.web.local", "--host", "0.0.0.0", "--port", "7860"]