Containers: a Primer

At a high level, a container is a slice of an operating system running on a server (or personal computer) which runs an app. By preference one app per container.

Containers are generally smaller and more efficient than running a whole OS running on a virtual machine on top of a hypervisor. This is why apps in containers should start promptly.

Apps running in a containers are called containerized apps.

Famous container technologies include Docker and Kubernetes.

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