Test-Driven Development with Python, Flask, and Docker

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Learn how to build, test, and deploy a microservice powered by Python, Flask, and Docker!

"Code without tests is broken by design." - Jacob Kaplan-Moss

Learning Objectives

By the end of this course, you will be able to:

1. Develop a RESTful API with Python and Flask
2. Practice Test-Driven Development
3. Test a Flask app with Pytest
4. Containerize Flask and Postgres inside a Docker container
5. Run unit and integration tests with code coverage inside a Docker container
6. Check your code for any code quality issues via a linter
7. Configure GitLab CI for continuous integration and deployment
8. Speed up a Docker-based CI build with Docker Cache
9. Deploy Flask, Gunicorn, and Postgres to Heroku with Docker
10. Configure Flask-Admin with SQLAlchemy models

Tools and Technologies

1. Python
2. Flask
3. Docker
4. Postgres
5. Pytest
6. Flask-RESTful
7. Flask-SQLAlchemy
8. Gunicorn
9. Coverage.py
10. flake8
11. Black
12. isort
13. HTTPie
14. Flask-Admin
15. GitLab
16. Heroku

Prerequisites

This is not a beginner course. It's designed for the advanced-beginner -- someone with at least six months of web development experience. Before beginning, you should have some familiarity with the following topics. Refer to these resources for more info:

Topic	Resource
Docker	Get started with Docker
Docker Compose	Get started with Docker Compose
Flask	Flaskr TDD

Demo

Info

• Current version: 1.0.0
• Last updated: September 30th, 2019
• Author:  Michael Herman

Table of Contents

• Introduction
• Changelog
• Getting Started
• Docker Config
• Postgres Setup
• Pytest Setup
• Flask Blueprints
• RESTful Routes
• Deployment
• Code Coverage and Quality
• Continuous Integration
• Continuous Delivery
• Remaining Routes
• Flask Admin
• Workflow
• Structure
• Next Steps