Kubernetes(K8s)
A powerful platform for orchestrating containers across many machines, with self-healing and scaling.
Kubernetes is usually overkill for a home server, but lightweight distributions like k3s let advanced homelabbers learn it. For most people, Docker Compose is simpler and enough.
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Docker
A platform for packaging applications and their dependencies into lightweight, portable containers.
Container
An isolated, self-contained package that bundles an application with everything it needs to run.
Docker Compose
A tool that defines and runs multi-container applications from a single declarative YAML file.