Dockerfile

# specify the image you want to use build docker image

FROM python:3.7

# Maintainer name to let people know who made this image.

MAINTAINER Kartik <kartik@gmail.com>

#apt is the ubuntu command line tool for advanced packaging tool(APT) for sw upgrade '''

RUN apt update && \
    apt install -y netcat-openbsd

# update pip
RUN pip install --upgrade pip

# set the env variable to tell where the app will be installed inside the docker

ENV INSTALL_PATH /home/App
RUN mkdir -p $INSTALL_PATH

#this sets the contaext of where commands will be ran in and is documented

WORKDIR $INSTALL_PATH

# Copy in the application code from your work station at the current directory
# over to the working directory.

COPY requirements.txt requirements.txt
RUN pip install -r requirements.txt

COPY . .

RUN chmod +x /home/App/docker-entrypoint.sh

CMD ["/bin/bash", "/home/App/docker-entrypoint.sh"]