Why we built Docker
summary
Docker presents a concrete shipping format and toolchain: a portable container engine that standardizes images, builds and runs them, and is already used at dotCloud. It isolates processes using Linux namespaces, avoids VM overhead while keeping the whole system context, and is written in Go as a static binary. Current release Docker v0.4 targets broad deployment, claims dramatic speed and reliability gains over VMs, and requests real‑world testing and bug reports.
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chapters (5)
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