What is Docker?
Docker is a software technology that provides virtualization at the operating system level to easily deploy applications in a sandbox (called containers) to run on Linux. Containers are isolated from each other and group their own software, libraries, and configuration files; they can communicate with each other through well-defined channels. All containers run by a single operating system kernel and therefore use fewer resources than virtual machines.

Containers - Provides an isolated environment in which an application runs alongside its environment.

Docker is more attractive than attractive because it allows many more applications to run on the same old servers, and it also makes it very easy to package and ship programs. Here is what you need to know about it.

What is Kubernetes?
Kubernetes is an open source orchestration system for automating container management, placement, scaling, and routing that has become popular with developers and IT operations teams in recent years. It was first developed by Google and contributed to Open Source in 2014, and is now maintained by the Cloud Native Computing Foundation.

Kubernetes provides an API to control how and where those containers will run. It enables you to run your Docker containers and workloads and helps you address some of the operational complexities when moving to scale multiple containers, deployed across multiple servers.

Is Kubernetes a docker?
Docker is a platform and tool for creating, distributing, and running Docker containers. Kubernetes is a container orchestration system for Docker containers that is more extensive than Docker Swarm and is intended to efficiently coordinate groups of nodes at production scale.

Why use Kubernetes?
Kubernetes has become the standard orchestration platform for containers. All major cloud providers support it, making it the logical choice for organizations looking to move more applications to the cloud.

Docker Kubernetes: Docker helps you "create" containers, and Kubernetes lets you "manage" them at runtime. Use Docker to package and ship your application. Use Kubernetes to deploy and scale your application.