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Update docker_elevator_pitch.md

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John Mulhausen 2016-10-04 00:55:23 -07:00 committed by GitHub
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At its core, Docker provides a way to run almost any application securely
isolated in a container. The isolation and security allow you to run many
containers simultaneously on your host. The lightweight nature of containers,
which run without the extra load of a hypervisor, means you can get more out of
your hardware. Additionally, your application can always be packaged with its
dependencies and environment variables right in the build image, making testing
and deployment simpler than ever.
Docker provides a way to run applications securely isolated in a container, packaged
with all its dependencies and libraries. Because your application can always be
run with the environment it expects right in the build image, testing
and deployment is simpler than ever, as your build will be fully portable and ready
to run as designed in any environment. And because containers are lightweight and run
without the extra load of a hypervisor, you can run many applications that all rely
on different libraries and environments on a single kernel, each one never interfering
with the other. This allows you to get more out of your hardware by shifting the "unit
of scale" for your application from a virtual or physical machine, to a container
instance.