Docker and Kubernetes Basics

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If you need to develop multiple applications on a single machine, then there are multiple ways of doing so, one of which is the traditional Virtualization. Traditional virtualization uses the same operating system and creates copies of it with the help of a hypervisor layer. This approach, however, occupies a lot of space. To make the process more effective and smooth, we could use a much better open-source platform, known as Docker.

A Docker is an open source platform for developers and sysadmins to build, ship and run distributed applications. Developers can simultaneously work on various applications at the same time and make changes to them accordingly.

Some of the advantages of using Docker are:

·         Responsive deployment and scaling
·         Running more workloads on the same hardware
·         Continuous deployment and testing
·         Easy removal of applications

At times, you need to manage an enormous number of containers at once. This is where Kubernetes comes into the picture. Kubernetes is an open-source system for automating deployment, scaling, and management of containerized applications. It groups containers that make up an application into logical units called pods and nodes. So, instead of working on individual containers, you could work on pods for the application development and kubernates will assign the pods to the respective nodes.

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