To keep things tidy, let's create an empty directory named Django to host all the files. Inside the Django directory, we need to define the content of a container by creating a Dockerfile using our favorite text editor. A Dockerfile defines the base image of a container as well as the commands that are necessary to compile an image.

We will use Python 3.6.5 as our base image. Please copy the following code to your Dockerfile. A series of additional commands define the working directory and the initiation process:

# The official Python 3.6.5 runtime is used as the base image
FROM python:3.6.5-slim
# Disable buffering of output streams
ENV PYTHONUNBUFFERED 1
# Create a working directory within the container
RUN mkdir /app
WORKDIR /app
# Copy files and directories in the current directory to the container
ADD . /app/
# Install Django and other dependencies
RUN pip install -r requirements.txt

As you may notice, we also need a text file, requirements.txt, to define any package dependencies in our project. Please add the following content to the requirements.txt file in the folder where the project is present:

Django==2.0.4
Matplotlib==2.2.2
stockstats==0.2.0
seaborn==0.8.1

Now, we can run docker build -t django in the terminal to build the image. It takes up to several minutes before the process is complete:

The following message will be shown if the building process is complete. The exact hash code at the end of the Successfully built ... message could be different:

Successfully built 018e75992e59
Successfully tagged django:latest