Kubernetes
Kubernetes (K8s) is the open-source container orchestration system that has become the standard for deploying, scaling, and managing containerised applications in production. Originally developed by Google and now maintained by the CNCF, Kubernetes powers the infrastructure of most major tech companies worldwide.
What is Kubernetes?
Kubernetes manages containerised workloads through core abstractions: Pods (groups of containers), Deployments (declarative rollouts), Services (networking), ConfigMaps/Secrets (configuration), Persistent Volumes (storage), Namespaces (isolation), and HorizontalPodAutoscalers (auto-scaling). The ecosystem includes Helm for package management, Prometheus/Grafana for monitoring, Istio/Linkerd for service meshes, and ArgoCD for GitOps deployments.
Why Kubernetes matters for your career
Kubernetes enables teams to scale applications automatically, roll out updates with zero downtime, and maintain consistent environments across development and production. As container adoption has become universal, Kubernetes skills have become a prerequisite for DevOps, Platform Engineering, and SRE roles at any scaled organisation.
Career paths using Kubernetes
Kubernetes expertise is required for DevOps Engineer, Platform Engineer, Site Reliability Engineer, Cloud Engineer, and Infrastructure Architect roles. Kubernetes certifications (CKA, CKAD, CKS) are widely respected in the industry.
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Frequently asked questions
When should a company adopt Kubernetes?▼
Kubernetes makes sense when you have multiple services, need auto-scaling, or want infrastructure as code for reproducible environments. For a single monolith or simple deployment, Kubernetes adds significant operational complexity without proportional benefit.
What's the difference between a Kubernetes Deployment and StatefulSet?▼
Deployments manage stateless pods that can be replaced interchangeably. StatefulSets manage stateful applications (databases, queues) that need stable network identities, persistent storage, and ordered deployment/scaling.
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