Dockerfile

# Dockerfile is based on the following tutorial:
# https://www.erraticbits.ca/post/2021/fastapi/

# Build step #1: build the React front end
FROM node:20-bookworm-slim as build-step

WORKDIR /app

ENV PATH /app/node_modules/.bin:$PATH

COPY frontend/package.json  ./

RUN npm install

COPY ./frontend/ ./

RUN npm run build


FROM python:3.11-slim-bookworm

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1

# Install poetry for packages management
RUN python -m pip install poetry
RUN poetry config virtualenvs.create false

# Use /app as the working directory
WORKDIR /app
RUN mkdir -p /app/models_cache && chmod 777 /app/models_cache

# Copy poetry files & install the dependencies
COPY backend/pyproject.toml /app
COPY --from=build-step /app/build /app/build

RUN poetry install --no-interaction --no-ansi --no-root --without dev

RUN python -c 'from sentence_transformers import SentenceTransformer; SentenceTransformer("clip-ViT-B-32", cache_folder="./models_cache")'

# Finally copy the application source code and install root
COPY backend /app

ARG USER_ID=1000
RUN if [[ "$USER_ID" != "0" ]]; then (groupadd --gid $USER_ID demo \
    && useradd --uid $USER_ID --gid $USER_ID -m demo \
    && chown -R $USER_ID:$USER_ID /app); fi

EXPOSE 8001
USER $USER_ID:$USER_ID

# Run the application
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8001"]