The combination of lightweight Kubernetes and WebAssembly (Wasm) has gained attention in recent years. This innovative pairing offers improved performance, scalability, and efficiency for applications running on lower-powered hardware or virtual machines. SUSE's Rancher Labs k3s project, Canonical's Microk8s, and k0s are examples of lightweight Kubernetes distributions.

The benefits of this combination become apparent when dealing with infrequently used applications, also known as "Kubernetes vampires." These services consume resources even when idle, contributing to 83% of container costs. Spin apps can resolve this issue by running only when handling requests, freeing up system resources for other containerized services.

Additionally, Spin excels at scaling per-request, allowing it to rapidly scale up or down according to traffic patterns. This is particularly useful for high-traffic websites, where traffic spikes may occur due to trending content on social media.

Running SpinKube on small-footprint Kubernetes distributions can also optimize performance by minimizing network latency and reducing the need for expensive edge computing solutions.

Source: https://dev.to/fermyon/lightweight-kubernetes-and-wasm-is-a-perfect-combo-5h11