Summary

There are several solutions and approaches to migrating a Flask application from the development to the production stage. The most common server that’s used to run Flask’s WSGI applications in production is Gunicorn. uWSGI, on the other hand, can run WSGI applications in more complex and refined settings. Flask[async] applications can run on Uvicorn workers with a Gunicorn server.

For external server-based deployment, the Apache HTTP Server with Python provides a stable and reliable container for running Flask applications with the support of Python’s mod_wsgi module.

Flask applications can also run on containers through Docker and Docker Compose to avoid the nitty gritty configuration and installations in the Apache HTTP Server. In Dockerization, what matters is the Dockerfile for a single deployment or the docker-compose.yaml file for multiple deployments and the combinations of Docker instructions that will contain these configuration files. For...