Docker vs Parallels Virtuozzo


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Docker
Docker is an open platform for developers and sysadmins to build, ship, and run distributed applications. Consisting of Docker Engine, a portable, lightweight runtime and packaging tool, and Docker Hub, a cloud service for sharing applications and automating workflows, Docker enables apps to be quickly assembled from components and eliminates the friction between development, QA, and production environments. As a result, IT can ship faster and run the same app, unchanged, on laptops, data center VMs, and any cloud.
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Parallels Virtuozzo
Parallels Virtuozzo Containers is an operating system virtualization solution that maximizes your investment in server hardware. Parallels Virtuozzo Containers is uniquely suited to Cloud server virtualization, enabling near instant provisioning and on-the-fly modification of hosting and Cloud server plans while delivering maximum density, cost efficiency and application performance.
Face to face in the news:


2016 - Docker acquired cloud infrastructure startup Unikernel Systems. Parallels Virtuozzo is in panic



Containers management startup Docker announced the acquisition of Unikernel Systems, a startup that aims to bring unikernels to the masses of developers. Docker plans to integrate support for unikernels into its own tools and services as it’s starting to look at technologies beyond containers to help developers build even more efficient microservices architectures. The price of the acquisition was not disclosed. The basic idea behind unikernels is to strip down the operating system to the absolute minimum so it can run a very specific application. Nothing more, nothing less. This means you would compile the necessary libraries to run an application right into the kernel of the operating system, for example.