Dockerfile
FROM python:3.7-slim
USER root
RUN apt-get update \
# opencv
&& apt-get install -y libglib2.0 libsm6 libxrender1 libxext-dev \
# ffmpeg
&& apt-get install -y ffmpeg \
&& apt-get clean \
&& rm -rf /var/lib/apt/lists/*
WORKDIR /root
COPY . .
RUN pip install --no-cache-dir .
WORKDIR /usr/src/app
CMD ["bash"]