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Docker: Reorganizing the Data Center

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There is an interesting evolution taking place in the traditional hosting space. Cloud computing is being steadily extended. People are rethinking the data center and this exciting process opens up an eclectic variety of new modifications to the traditional server in order to serve the customers better.

Virtualizing the server is one such modification available in the market today. The act of virtualizing a server in computing refers to creating a virtual rather than an actual version of something. This includes but is not restricted to a virtual computer hardware platform, operating system (OS), storage device, or computer network resources. Cloud computing is the technique that after virtualization has taken place provides resources from various separated computers on-demand.

The environment used to virtualize the server is Hypervisor. Hypervisor helps to create   several virtual machines (VM) that have an independent CPU, Memory and Network and individual Operating Systems.

Cloud providers such as Cirrus Tech are getting really interested in Docker Container technology within a Virtual Machine. Docker is an Open platform for developers and system administrators to build and test cloud applications. Docker is fast becoming a very convenient way for building, running and shipping distributed applications. Docker, which is operated as an application (service), is a Virtualization platform that can build and package a number of applications and make them highly portable.FullSizeRender

Docker helps to manage a computer environment separated from an OS by using the Libcontainer, which is a Linux container system. This Container technology is more than a decade old already. Google has been using in-house versions of containers for many years. But Docker container has now made the tools easy enough for everyone else to use too.

Thanks to Docker, users can now create a network and attach containers to it. They can communicate seamlessly across a cluster of containers with a single command. Basically a container summarizes applications and defines their interface to the surrounding system, which should make it simpler to drop applications into VMs running Docker in different clouds.

With Docker developers and system managers can distribute and test the software that they have developed, more easily and faster, move it from a laptop environment to any geographical location or any system that is supported by Docker or vice versa.

By using Docker containers, resources can be isolated, processes provisioned and services restricted to have an almost completely private view of the operating system with their own process ID space, file system structure, and network interfaces. Multiple Docker containers share the same kernel, but each container can be constrained to only use a defined amount of resources such as CPU, memory and I/O.

 

Docker is primarily made up of two technologies:

  • Docker Engine: A portable, lightweight application runtime and packaging tool.
  • Docker Hub: A cloud service for sharing applications and automating workflows.

These two work together and the developer utilizes these two to implement their technology to make their testing or developing cycles quicker and easier.

 

Benefits of using Docker in a Virtual Machine 

1) Having a Docker container in a VM is easy to manage and applies the policy of system, network, user and security. With Docker, there is no need to install an extra OS as Docker container has everything it needs to operate.

2) In a Docker container, you can run multiple Docker instances in a single VM or per physical node and so this is far more economical for developers.

3) Having a Containerized version of a VM makes it easier to maintain and to port to new cloud environments. Containers are isolated and share an OS and can also share bins/libraries when required.

 

Giant tech companies are rushing to deploy this Docker technology, which represents one of the biggest shifts in application development in years. Mostly all activity online now is an application running in the cloud. Apps housed in Docker’s free container software have been downloaded 535 million times in just two years.

Many large businesses are planning to adopt Docker faster than any cloud open-source product ever according to a study by New York based market research firm, Enterprise Technology research.

Docker is completely open-source and easily accessible. Therefore, it is being consumed heavily in the market by the non-procrastinating developers.

 

 

 

 


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