First version

backend/Dockerfile

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+FROM python:3.12-slim
+
+WORKDIR /usr/src/app
+
+ENV PYTHONDONTWRITEBYTECODE 1
+ENV PYTHONUNBUFFERED 1
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+  python3-setuptools \
+  python3-pip \
+  python3-dev \
+  python3-venv \
+  netcat-openbsd && \
+  apt-get clean && \
+  rm -rf /var/lib/apt/lists/*
+
+RUN pip install --upgrade pip
+COPY ./requirements.txt .
+RUN pip install -r requirements.txt
+
+COPY ./entrypoint.sh .
+RUN sed -i 's/\r$//g' /usr/src/app/entrypoint.sh
+RUN chmod +x /usr/src/app/entrypoint.sh
+
+COPY . .
+
+EXPOSE 8000
+
+ENTRYPOINT ["/usr/src/app/entrypoint.sh"]