FROM python:3 AS builder
WORKDIR /usr/src/app

COPY requirements.txt ./
RUN python -m venv ./python && \
    . ./python/bin/activate && \
    pip install --upgrade pip && \
    pip install --use-pep517 --no-cache-dir -r requirements.txt
COPY . .
RUN . ./python/bin/activate && \
    mkdocs build --clean --strict

FROM nginx:stable AS runtime
COPY --from=builder /usr/src/app/site /usr/share/nginx/html