Openvz vs Docker

OnaDavney

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#1
Can you tell me what is the difference between Docker and OpenVZ? Which one is better on Linux system?
 

HostColor

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Both are Os virtualization - software defined virtualization. All hosted virtual instances are run by a single operating OS kernel. This means there is no flexibility for the clients to run the OS they need.
 

24x7CSM

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Well in terms of virtualization you can not really differentiate between OpenVz and Docker , Docker is way advanced than OpenVz. OpenVz is to just virtualize a dedicated server , where as Docker has a virtualization concept however its an automation thing which helps you to deploy the virtual instances with installed apps using either docker community image or free image. Docker has to 2 versions , one of them is PAID version however their free edition is way advanced too. Docker is basically used to deploy and host the application instances which has pre-defined configurations and it is mostly used to develop apps as it provides easy administration , updates , changes for such apps.
 

VirtuBox

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#4
Can you tell me what is the difference between Docker and OpenVZ? Which one is better on Linux system?
@24x7CSM is totally right, there is no reason to compare OpenVZ and Docker because their features and possible usages are not the same.

OpenVZ is a container virtualization solution, similar to LXC/LXD, which provide the ability to host several isolated containers running a full linux distribution on the same host.

Main usage : providing virtual servers hosting on dedicated servers with isolated containers

When Docker is a lightweight container virtualization solution built "to develop, deploy, and run applications with containers" like Docker.com explain it in its documentation. Docker cannot be used (isn't intended) to run a full linux distribution in a container, but only a single application.

Main usage : running applications inside containers on almost all platform to isolate each service inside a container (most of time, Docker containers are running inside virtual machines powered by KVM, XEN, or VMWARE)
 

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