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Workshop - Deploying Applications in Containers |
lab |
This guide was written primarily from the perspective of a Linux user looking to deploy a completed app on a server. Some examples of popular Linux distributions include Debian, Ubuntu, and Arch.
While not tested, the contents of this guide should also be able to be adapted other operating systems.
This guide will cover will be covering a part of a crucial step in making your completed web server a reality: deploying it on a live server. For this guide, we will be writing a very minimal Flask application, and deploying it with Docker.
Docker is a computer program that performs operating-system-level virtualization, also known as "containerization". There are many different resources available online explaining the benefits of using Docker to containerize your application, such as this.
At this point, your app should be fully containerized, and ready to run in a production environment. For the purposes of this guide, we are now more or less done. A very common next step, often called container orchestration, is to set up and configure another application to manage your newly made container (e.g. start/stop, restart on crash, create duplicates). Some popular tools include kubernetes as well as marathon. While out of the scope for this guide, there are several other tutorials teaching you how to set up these services.