Flask Framework Cookbook - Second Edition

How to do it...

We will start with the catalog application from Chapter 11, Deployment and Post-Deployment, in the Managing and monitoring application performance with New Relic recipe:

1. The first step toward creating a container is to create an image for it. A Docker image can easily be created in a scripted manner by creating a file named Dockerfile. This file contains the steps that Docker needs to perform in order to build an image for our application's container. A basic Dockerfile for our application would be as follows:

FROM python:3WORKDIR /usr/src/appCOPY requirements.txt requirements.txtRUN pip3 install -r requirements.txtCOPY . .ENTRYPOINT [ "python" ]CMD [ "run.py" ]

Each line in the preceding file is a command that is executed ...