Dockerfile

# Build the image using existing Python image from docker.hub. Identify the version of python with the tag: 3.8-slim-buster, which is a lightweight linux distribution
FROM python:3.8-slim-buster

# Set the working directory (used by CMD below)
WORKDIR /app

# Install additional python packages
RUN pip install flask Flask-SQLAlchemy PyMySQL

# A meta command used to document that any containers should expose port 5000 with the docker run command
EXPOSE 5000

# Containers will run python on the file: /app/index.py
CMD python ./index.py