Kubernetes' - The Next Big Lightning in Cloud Computing

Remember the olden days when companies had physical servers housed in air conditioned room and applications ran on them.

The trouble that organizations faced was when multiple applications were executed, some applications used up all the resources, and other applications lagged due to little resource left for them to run efficiently and underperformed.

The physical servers lacked the partitioning for applications that would limit the resource usage. IT solved this problem by executing different applications on different servers.

This wasn't an elegant solution, since some resources were underutilized, and the organization's server capacity was not optimum and also proved to be an expensive tradeoff, since it also meant paying for maintenance of several servers.

Virtual Machines

This led to a further refined solution where the server was one, but it had many virtual machines allocated to different applications, restricting the resource usage for multiple applications on a single server housed on a single CPU.

These virtual boundaries on a same physical server also provided security by restricting the data set of one application from the other. Installed over a virtual hardware, in a physical server, each VM is a full machine, with its own operating system, running all the installed components.

This solution reduced the cost, made the security department happy, and, at the same time, the infrastructure team clasped their hands in joy, since it also allowed better scalability of resources and provided flexibility of updating individual applications.

Cloud

The advent cloud set the restrictions of physical servers free. Similar to Virtual machines, separate containers were developed keeping the flexibility of cloud in mind.

Containers were developed, which were portable across clouds and operating systems. They have their own Central Processing Unit, random access memory, processing space and their own virtual file systems. Though separate, still these containers shares operating system between multiple applications, but still they are not dependent with the physical infrastructure or server system, thus providing the flexibility to be shared and portable across clouds.

Kubernetes

Kubernetes manages the traffic by optimally allocating the application load across multiple containers automatically with minimum monitoring. This distributes the network load much effectively. With its higher secure environment as well as automatic shutting down of irresponsive containers, Kubernetes is worth a look, as a career, or as a deployment choice to meet the future.