DevOps Advanced

What is Kubernetes?

An open-source container orchestration platform that automates deploying, scaling, and managing containerized applications.

Kubernetes (K8s) manages clusters of containers at scale. It handles load balancing, self-healing (restarting failed containers), rolling updates, secret management, and horizontal auto-scaling.

Core objects include Pods (smallest deployable units), Deployments (desired state), Services (networking), and ConfigMaps/Secrets (configuration). Managed offerings include EKS (AWS), GKE (Google), and AKS (Azure).

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Related Terms

The ability to understand a system's internal state from its external outputs through metrics, logs, and traces.

Infrastructure as Code (IaC)

The practice of managing infrastructure through machine-readable configuration files rather than manual processes.

A technique that allows enabling or disabling features in production without deploying new code, enabling safe rollouts and A/B testing.

A distributed version control system that tracks changes in source code during software development.

A package manager for Kubernetes that simplifies deploying and managing applications using reusable, configurable charts.

An architectural style where an application is composed of small, independent services that communicate over APIs.

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