fixed Dockerfile and requirements.txt (for pip) so that pa.depaoli.id.au is now a working docker container on mara

Dockerfile

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+FROM ubuntu:20.04
+WORKDIR /code
+ENV TZ=Australia/Melbourne
+RUN truncate -s0 /tmp/preseed.cfg && \
+       (echo "tzdata tzdata/Areas select Australia" >> /tmp/preseed.cfg) && \
+       (echo "tzdata tzdata/Zones/Australia select Melbourne" >> /tmp/preseed.cfg) && \
+       debconf-set-selections /tmp/preseed.cfg && \
+       rm -f /etc/timezone /etc/localtime && \
+       apt-get update && \
+       DEBIAN_FRONTEND=noninteractive DEBCONF_NONINTERACTIVE_SEEN=true \
+       apt-get install -y tzdata
+## cleanup of files from setup
+RUN rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+RUN apt-get update && apt-get -y install python3-pip python3-psycopg2 libpq-dev gunicorn mediainfo cmake libgl1-mesa-glx libglib2.0-0
+COPY requirements.txt requirements.txt
+RUN pip3 install -r requirements.txt
+RUN pip3 install --upgrade pillow --user
+EXPOSE 443
+COPY . .
+CMD ["gunicorn", "--bind=0.0.0.0:443", "--workers=2","--threads=2", "--certfile", "/etc/letsencrypt/live/pa.depaoli.id.au/fullchain.pem", "--keyfile", "/etc/letsencrypt/live/pa.depaoli.id.au/privkey.pem","main:app"]

requirements.txt

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+flask
+sqlalchemy 
+flask-sqlalchemy
+SQLAlchemy-serializer
+marshmallow-sqlalchemy 
+flask-marshmallow
+flask-wtf 
+flask-bootstrap 
+pymediainfo
+ExifRead
+opencv-python
+datetime
+pytz
+dlib
+face_recognition