Dockerfile.api

# Dockerfile.api — FastAPI backend demo container (DEPLOY-003B)
#
# Deploy-prep only. No image has been pushed. No cloud deploy has been
# performed. Before using this file to run a hosted demo, complete the
# safety validation checklist in:
#   docs/deployment/backend_entrypoint_health_audit.md
#
# Safety posture enforced by config.json and app/core/settings.py:
#   autotrade=false  dry_run=true  read_only=true  live_orders_blocked=true
#
# Do NOT include secrets, broker credentials, or env var values in this
# file. Set all env vars in the hosting platform dashboard only.
#
# Do not use the existing Dockerfile or Dockerfile.prod — those target the
# scheduler/bot CLI, not the FastAPI backend.
#
# Start command: uvicorn app.main:app --host 0.0.0.0 --port ${PORT:-8000}
# Port: 8000 default; overridden by PORT env var injected by Railway/Render.

FROM python:3.11-slim

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1

WORKDIR /app

# Install dependencies before copying application code to maximise layer cache.
COPY requirements.txt .
RUN pip install --no-cache-dir --upgrade pip \
 && pip install --no-cache-dir -r requirements.txt

# Copy application source. The .dockerignore at the repository root excludes
# .git, __pycache__, .venv, docs/, and other non-runtime artefacts.
COPY . .

# Expose the default FastAPI port.
EXPOSE 8000

# Shell form is required so ${PORT:-8000} default substitution works.
# Railway and Render inject PORT automatically at runtime.
CMD ["sh", "-c", "uvicorn app.main:app --host 0.0.0.0 --port ${PORT:-8000}"]