What is Kubernetes?

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Open-source container orchestration system
Original author(s)
Cloud Native Computing Foundation
Initial release
0.2 / 9 September 2014
Kubernetes is an open-source container orchestration platform that automates the deployment, scaling, and management of containerized applications across a cluster of nodes (servers or virtual machines). Here are the key points about Kubernetes:

What is Kubernetes?

  • Kubernetes is a portable, extensible open-source platform for managing containerized workloads and services.
  • It facilitates both declarative configuration and automation to deploy, scale, and operate application containers across clusters of hosts.
  • Kubernetes groups containers that make up an application into logical units for easy management and discovery.
  • It provides a loosely coupled mechanism for service discovery across a cluster. A Kubernetes cluster has one or more control planes and one or more compute nodes.

Key Features

  • Automatic bin-packing of containers based on resource requirements and constraints
  • Self-healing capabilities with auto-placement, auto-restart, auto-replication, and auto-scaling of containers
  • Horizontal scaling of applications by deploying new instances on demand
  • Service discovery and load balancing across containers
  • Storage orchestration by automatically mounting storage systems
  • Rollout and rollback support for application updates and downgrades
  • Batch execution for long-running workloads like analytics

Use Cases

  • Orchestrating microservices applications across public, private or hybrid clouds
  • Deploying and managing machine learning and data processing workloads
  • Building multi-cloud and hybrid cloud architectures
  • Enabling DevOps practices like CI/CD pipelines
In summary, Kubernetes provides an open, extensible platform for deploying and managing modern, containerized applications in an automated, scalable and portable manner across diverse environments.
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