We’ve added WebAssembly (WASM) support to our Kubernetes service. A RuntimeClass for WASM is automatically provisioned on every cluster, so you can run WASM workloads alongside your containers without any extra setup. This post explains how it works and how to use it. Why run WASM on Kubernetes? WebAssembly gives you a portable, sandboxed execution environment. WASM modules are typically much smaller than container images, start very quickly, and run with strong isolation.