Kubia

Kubia is a name used in several contexts within computing, but it is most commonly associated with a small, demonstration web application used in Kubernetes tutorials and examples. The Kubia demo is designed to be simple and predictable, running in a container and serving HTTP requests while exposing basic information such as the pod name and the node on which it is executing. The purpose of Kubia in these contexts is to provide a reproducible workload that helps illustrate core Kubernetes concepts.

Design and usage

Kubia is written to be lightweight and easy to run in a variety of environments. It typically uses a minimal HTTP server and may output the hostname, pod name, and a request counter to demonstrate state across requests. In tutorials, Kubia serves as a practical example for observing how deployments, replicas, and services behave, and for testing features such as health checks, DNS-based service discovery, and basic load balancing.

Deployment and operation

As a container image, Kubia can be deployed with standard Kubernetes primitives. A Deployment or ReplicaSet manages the pods, and a Service exposes the running instances to traffic. Depending on the scenario, Ingress can be used to route external requests to Kubia. Scaling Kubia to multiple replicas provides a straightforward way to observe how traffic is distributed among pods and how responses may vary across instances.

Other uses

The term Kubia appears in other, unrelated contexts as well, but the Kubernetes-related Kubia remains the best-known technical usage. See also Kubernetes, container orchestration, Service, DNS, load balancing, and health checks.