Docker containers as template for flask application / restful API

Ian M. Hayhurst 2020 09 25

The rest of this readme is the generic development of a python flask api for an database (oracle here) in docker containers

Python 3.8.6 Flask with uWSGI Nginx in Docker. (using docker-compose) Idea is to reuse base for different apps i.e. For API dev infront of Oracledb or similar

• Database module in python (cx_oracle in here as folk seemed keen on it)
• Redis added but not tested with placeholder app
• Hot code reload the flask/app is copied into the container but then mounted over with volume from host filesystem, uWSGI will reload if touch_to_reload file is 'touched'
• Blueprint structure added (website, api separation)

TODO

• add celery and code task in demo app
• add AJAX style checking with redis if task complete

Drawn from the inspirational articles:

• cx_oracle on docker: https://www.youtube.com/watch?v=_wab4By7P78
• https://www.docker.com/blog/containerized-python-development-part-2/
• Carlos Tighe: Apache, mod_wsgi, flask, docker: https://github.com/carlostighe/apache-flask
• Ivan Panshin: Nginx, gunicorn, flask, docker: https://towardsdatascience.com/how-to-deploy-ml-models-using-flask-gunicorn-nginx-docker-9b32055b3d0
• Julian Nash: Nginx, uWSGI, flask, docker: https://pythonise.com/series/learning-flask/building-a-flask-app-with-docker-compose