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What does "namespace (Kubernetes)" mean in programming?

namespace (Kubernetes) is one of the most common terms in software development. This guide explains what it means, how it is used in practice, and why it matters, with real examples from the developer world.

Definition

A virtual cluster within a Kubernetes cluster used to isolate resources between teams or environments. Resource names must be unique within a namespace but can be reused across namespaces.

Example

"We use separate namespaces for staging and production environments."

Related terms

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