Python3 and MongoDB using Docker

Dockerfile for Python3 and MongoDB using Ubuntu

FROM ubuntu:16.04
MAINTAINER www.shubhamdipt.com


# Install MongoDB.
RUN apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv EA312927 && \
  echo 'deb http://repo.mongodb.org/apt/ubuntu trusty/mongodb-org/3.2 multiverse' > /etc/apt/sources.list.d/mongodb-org-3.2.list

RUN apt-get -y update \
  && apt-get install -y --allow-unauthenticated mongodb-org \
  && apt-get install -y git vim wget python3-pip python3-dev \
  && cd /usr/local/bin \
  && ln -s /usr/bin/python3 python \
  && pip3 install --upgrade pip

RUN apt-get clean

# Define mountable directories.
VOLUME ["/data/db"]

ADD . /data

WORKDIR /data

RUN pip install -r requirements.txt

ENV PYTHONPATH='.'

EXPOSE 5000

RUN chmod +x ./start.sh

CMD ["./start.sh"]

and in the start.sh file add the following: 

#!/usr/bin/env bash
set -eu
echo "Starting MONGOD and Flask App ...."
mongod & python3 app.py

and in the docker-compose.yml:

version: '2'
services:
    web:
        build: .
        ports:
            - "5000:5000"