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May 2015, Volume 4, Issue 5

A brief history of Docker Containers' overnight success

Containers are enjoying a renewed interest within enterprise IT, courtesy of Docker. Some analysts have speculated they’re the next logical step in server consolidation to replace virtual machines. The intriguing wrinkle in this new containerized approach is that it’s really not new. The idea of containers has been around since the early days of Unix with the chroot command. Linux containers, the technology upon which Docker’s software was originally built, were introduced in 2008. So, what’s with the sudden surge in container interest? Containerized applications share a common operating system kernel, eliminating the need for each instance to run on its own separate operating system. An application can be deployed in a matter of seconds and using fewer resources than with hypervisor-based virtualization. However, since the applications all rely on a common OS kernel, this approach can work only for applications that share the exact OS version. Docker found a way to address this limitation. Docker leads the way Docker was ...

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