What are Containers in Kubernetes and What are containerization kubernetes benefits?

containers in kubernetes | what is containers

What are Containers in Kubernetes?

A collection of processes unified by one namespace, with access to an operating system Kernel that it shares with other containers and little or no connections between them.

According to Docker Containers
A container is a standard unit of software that packages up code and all its dependencies so the application runs quickly and reliably from one computing environment to another. A Docker container image is a lightweight, standalone, executable package of software that includes everything needed to run an application: code, runtime, system tools, system libraries and settings.
Read More -> What is a Container? | App Containerization | Docker

A runtime instance of a Docker Image contains three things.

  1. Docker Image
  2. An execution Environment
  3. A standard set of instructions

Difference between VM and Containers

Containers VS VMware


One or many applications
The necessary binaries and libraries
The entire guest operating SYstem to Interact with the applications


Container include the Application and all of its dependencies
Container shares the kernel with other containers
Not tied to infrastructure only needs Docker Engine installed on the host.
Run as Isolated processes in user space on the Host OS
This allows containers to run anywhere (any system, computer)

Container Benefits for Developers

Containers are very much Portable
Packaged in a standard way
Deployment is Easy and Repeatable
Automated testing, packaging, and integrations
Support newer microservice architectures
Alleviate platform compatibility issues
Reliable Deployments:- Improve Speed and Frequency of releases.
Consistent application lifecycle: Configure once and run mulitple times. No more process differences between dev and production environments.
Simple Scaling
Fast deployments ease the addition of workers and permit workload to grow and shrink for on-demand use cases.


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