FROM python:slim ENV DEBIAN_FRONTEND noninteractive ENV LANG C.UTF-8 COPY . /app WORKDIR /app RUN apt-get update && apt-get -y upgrade && apt-get -y install locales && \ printf "en_US.UTF-8 UTF-8\nfr_FR.UTF-8 UTF-8\n" > /etc/locale.gen && \ locale-gen && rm -rf /var/lib/apt/lists/* && \ pip install -r requirements.txt CMD ["python", "app.py"]