Dockerfile.backend

# ---------------------------------------------------------------------------
# Agent Economy — Backend Dockerfile
# Python 3.14 slim + uv for fast dependency installation
# ---------------------------------------------------------------------------

FROM python:3.14-slim

# Prevent Python from writing .pyc files and ensure stdout/stderr are unbuffered
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    APP_DIR=/app \
    CONFIG_DIR=/app/config \
    # Tell uv to use the system Python and install into system site-packages
    UV_SYSTEM_PYTHON=1 \
    UV_NO_CACHE=1

WORKDIR /app

# Install uv from the official image
COPY --from=ghcr.io/astral-sh/uv:latest /uv /usr/local/bin/uv

# Install system dependencies needed by asyncpg (C compiler + libpq)
RUN apt-get update && apt-get install -y --no-install-recommends \
    libpq-dev \
    gcc \
    && rm -rf /var/lib/apt/lists/*

# Copy only the dependency manifests first (better layer caching —
# rebuilds only when dependencies change, not on every source change)
COPY backend/pyproject.toml backend/uv.lock* /app/backend/

# Install Python runtime dependencies into the system Python.
# Using uv sync from the project directory installs all declared deps.
RUN cd /app/backend && uv sync --no-install-project

# Copy application source (separate layer — only invalidated on code changes)
COPY backend/ /app/backend/

# Copy config directory
COPY config/ /app/config/

# Expose the application port
EXPOSE 8000

# Default command — overridden in docker-compose per service
# uv run ensures the project virtual env / system python with deps is used
CMD ["uv", "run", "--project", "/app/backend", "uvicorn", "backend.main:app", "--host", "0.0.0.0", "--port", "8000"]