Kubernetes

What is Kubernetes?

Kubernetes (often abbreviated as K8s) is an open-source platform for automating the deployment, scaling, and management of containerized applications. It organizes containers across a cluster of nodes, using a declarative model where you define the desired state and Kubernetes works to maintain it. Originally developed by Google, it has become the industry standard for container orchestration.

What problem does it solve?

Running a few containers on a single machine is straightforward, but managing hundreds or thousands across multiple servers is a different challenge entirely. Manual container management does not scale. Tasks like networking, storage provisioning, load balancing, and scheduling become increasingly complex and error-prone as applications grow.

How does it help?

Kubernetes automates the hard parts of running containers at scale. It provides self-healing by restarting failed containers and replacing unresponsive nodes. Auto-scaling adjusts capacity based on demand, while rolling updates let you deploy new versions without downtime. Built-in service discovery and load balancing ensure that traffic reaches the right containers automatically.