Dockerfile.dev

# syntax=docker/dockerfile:1.7
FROM python:3.12-slim

ENV DEBIAN_FRONTEND=noninteractive \
    PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=1 \
    VIRTUAL_ENV=/opt/venv \
    PATH=/opt/venv/bin:$PATH \
    HOST=0.0.0.0 \
    PORT=8000 \
    FRONTEND_PORT=5173 \
    OPENAI_MODEL=nemotron-30b \
    OPENAI_BASE_URL=http://inference.sprit3dan-labs.net/nemotron-30b/v1/ \
    CHOKIDAR_USEPOLLING=true \
    WATCHPACK_POLLING=true

WORKDIR /workspace

# System toolchain: curl + bash + nodejs/npm for frontend dev server
RUN apt-get update \
    && apt-get install -y --no-install-recommends \
      bash \
      ca-certificates \
      curl \
      git \
      gnupg \
      build-essential \
    && curl -fsSL https://deb.nodesource.com/setup_20.x | bash - \
    && apt-get install -y --no-install-recommends nodejs \
    && rm -rf /var/lib/apt/lists/*

# Python venv + backend deps (kept outside /workspace so bind mounts won't erase them)
RUN python -m venv /opt/venv

# Preload dependency manifests for faster rebuilds
COPY backend/requirements.txt /tmp/backend-requirements.txt
COPY frontend/package.json /tmp/frontend-package.json
COPY frontend/package-lock.json /tmp/frontend-package-lock.json

RUN pip install -r /tmp/backend-requirements.txt

# Cache frontend packages in image layer (runtime still verifies on startup)
RUN mkdir -p /opt/frontend \
    && cp /tmp/frontend-package.json /opt/frontend/package.json \
    && cp /tmp/frontend-package-lock.json /opt/frontend/package-lock.json \
    && cd /opt/frontend \
    && npm ci

EXPOSE 8000 5173

# Dev startup:
# - assumes project is bind-mounted at /workspace
# - installs frontend deps on first run if missing
# - runs backend (reload) + frontend dev server in one container
CMD ["bash", "-lc", "\
set -euo pipefail; \
if [ ! -d /workspace/frontend ] || [ ! -d /workspace/backend ]; then \
  echo 'Expected source at /workspace with frontend/ and backend/ (bind mount your repo).'; \
  exit 1; \
fi; \
if [ ! -d /workspace/frontend/node_modules ]; then \
  echo 'Installing frontend dependencies...'; \
  cd /workspace/frontend && npm install; \
fi; \
if [ ! -f /workspace/backend/requirements.txt ]; then \
  echo 'Missing /workspace/backend/requirements.txt'; \
  exit 1; \
fi; \
trap 'kill 0' INT TERM EXIT; \
( cd /workspace/backend && uvicorn app.main:app --host 0.0.0.0 --port ${PORT} --reload ) & \
( cd /workspace/frontend && npm run dev -- --host 0.0.0.0 --port ${FRONTEND_PORT} ) & \
wait -n; \
"]