| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647 | FROM ubuntu:20.04ENV DEBIAN_FRONTEND noninteractiveRUN echo "Install Python v3.8:" \    && apt-get update \    && apt-get install -y  \        python3-dev \        python3-pip \        python3-setuptools \        python3-wheel \    && pip3 config set global.index-url https://mirror.baidu.com/pypi/simple \    && pip3 config set global.extra-index-url https://pypi.tuna.tsinghua.edu.cn/simple \    && pip3 install --upgrade --quiet pip setuptools \    && python3 --version# --- install requirements ---RUN echo "Install Python Requirements:" \    && pip3 install --default-timeout=1800 --no-cache-dir \        # --- for base --- \        cython==3.0.0a9 \        pyinstaller==4.10 \        # --- for libraries --- \        pycrypto==2.6.1 \        paramiko==2.7.2 \        apscheduler==3.7.0 \        # --- for client --- \        requests==2.25.1 \        redis==3.5.3 \        pymongo==3.11.2 \        influxdb==5.3.1 \        pymysql==0.9.3 \        peewee==3.17.0 \        SQLAlchemy==1.4.30 \        paho-mqtt==1.6.1 \        # --- for server --- \        typesystem==0.2.5 \        aiohttp==3.7.3 \        responder==2.0.7 \        uvloop==0.14.0 \        uvicorn==0.13.2 \        supervisor==4.2.1 \        websocket-client==0.58.0 \    && echo "End."RUN echo "Debug Tools:" \    && apt-get update \    && apt-get install -y inetutils-ping iproute2 net-tools wget unzip git bash
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