Introducing Fly.io

In Chapter 12, Deploying Your Application to Kubernetes, we learned how to containerize our application and deploy it to Kubernetes. In this case, we leveraged a local Minikube Kubernetes cluster since getting access to a public Kubernetes cluster might be difficult or expensive for you. Knowing how to deploy the application to Kubernetes is a valuable asset considering it’s becoming the standard cloud platform these days. However, unless you used a public cluster instead of Minikube, so far, your application can only be consumed from your local machine.

In this chapter, we’ll learn how to deploy the application to Fly.io, a new cloud PaaS provider that is becoming very popular thanks to its free plans. The main reason for choosing this platform is that it offers a free plan suitable for our application’s needs. By the end of this chapter, our application will be publicly exposed and accessible from anywhere in the world.

Fly.io is a platform...