Episode 98 - Fly IO instead of Docker?

Well now, are you using Docker? never heard of Docker? well perhaps you might want to ask AI to help there.

If you do use Docker to create containers of your apps/micro-services then what about Fly.io?

Fly.io is a public cloud infrastructure platform. Users deploy applications as Docker images, but Fly.io does not utilize Docker to run the applications.

Docker images are actually OCI (Open Container Initiative) images, which are essentially stacks of tarballs (are these similar to harballs that a cat has?). Fly.io unpacks these layers onto virtual machines and can retrieve the container manifest from the Docker registry.

Fly.io employs a custom registry to fetch and unpack image layers. It utilizes Firecracker microVMs for virtualization. Firecracker is a virtual machine manager that creates lightweight microVMs. Fly.io uses Firecracker to orchestrate these VMs, along with containerD for isolation. ContainerD is responsible for managing and unpacking application images, with each app instance running on its own isolated kernel.

There are some generous free options described here.