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Docker - what use is it? (sh.itjust.works)

submitted 2 years ago by Amongussussyballs100@sh.itjust.works to c/selfhosted@lemmy.world

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I see Docker mentioned every other thread and was wondering how useful it is for non development things, and if so what they are.

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[–] technohacker@programming.dev 47 points 2 years ago

Containers, the concept that Docker implements, lets app developers give a self-contained environment for distribution. For devs that means consistency in deployments across environments, which in turn means sysadmins can deploy each of these apps as fully isolated units.

With that, you get really clean installs/updates/uninstalls, and your deployments get done with a well-defined, declarative definition file which can also handle multi service dependencies (a la Docker Compose/K8s)