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

A file containing build rules and commands that automates compilation and common project tasks using the make utility.

A deployment strategy that gradually replaces old application instances with new ones, maintaining availability throughout.

Container Registry

A storage and distribution service for container images, similar to a package repository but for Docker images.

Containerization

A lightweight virtualization method that packages applications with their dependencies into isolated, portable containers.

Semantic Versioning

A versioning scheme using MAJOR.MINOR.PATCH numbers that communicates the nature of changes in each release.

A packaged, versioned output of a build process — such as a Docker image, JAR file, or compiled binary — ready for deployment.

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