CRIO

CRIO is an acronym used in several domains to refer to different organizations, programs, or technologies. Because it is not unique to a single entity, the exact meaning of CRIO depends on context.

In information technology, CRI-O (often rendered CRIO) is a container runtime for Kubernetes. It is an open-source implementation that provides the Kubernetes Container Runtime Interface (CRI) and runs OCI-compliant containers without a Docker daemon. CRI-O is designed to be lightweight and secure, integrating with OCI-compatible runtimes such as runc. It aims to offer a minimal interface between the kubelet and the container runtime, reducing dependencies and attack surface in Kubernetes environments.

Other uses of CRIO exist in academia, business, and government contexts as acronyms for institutes or programs whose names begin with C, R, I, and O. Because it is not unique, users must rely on additional context—such as related organizations, location, or field—to determine the intended reference.