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DevOps & Automation · Foundational

Kubernetes (K8s)

An open-source CNCF container orchestration platform that automates deployment, scaling, networking, and self-healing of containerized applications.

Definition

Kubernetes runs workloads on a cluster of nodes managed by a control plane. Users declare desired state with API objects such as Deployments and Services, and controllers continuously reconcile actual state to match.

Example

kubectl apply -f deployment.yaml deploys three replicas that are rescheduled automatically if a node fails.

Exam tip

Know the managed offerings: Amazon EKS, Azure AKS, Google GKE, and Red Hat OpenShift.

Don't confuse it with

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