Glossary

This glossary defines some of the most common Kubernetes-related terms used throughout the course. Let us know if you think we’ve missed anything important:

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Now then, I’m well aware that some people are passionate about their own particular definitions of technical terms. I’m OK with that, and I’m not saying my definitions are the best – they’re designed to be helpful for readers. OK, here it goes.

OK, here goes.

API server: Exposes the features of Kubernetes over an HTTPS REST interface. All communication with Kubernetes goes through the API server – even cluster components communicate via the API server.

Container: Lightweight environment for running modern apps. Each container is a virtual operating system with its own process tree, filesystem, shared memory, and more. One container runs one application process.