How does Kubernetes Work? Everything you should know

Kubernetes is a powerful open-source platform for automating the deployment, scaling, and management of containerized applications, providing features such as clusters, control panels, and scheduling to ensure resilience and scalability. It groups application containers into logical units called pods and can automatically adjust resources based on demand, offering advantages over single-node solutions like Docker Compose. Kubernetes includes a variety of functionalities, including role-based access control (RBAC), ConfigMaps, secret management, persistent volumes, and service networking, which allow for stable and secure application deployment. It also supports network policies, ingress controllers, and relies on third-party Container Network Interface (CNI) plugins for advanced networking features. The guide explains how to use Kubernetes' command-line interface, kubectl, to manage clusters and deploy applications, emphasizing the importance of YAML configuration files for specifying application states and resources. It highlights the role of cloud providers in managing Kubernetes clusters, with tools like GKE Autopilot simplifying node management. The article concludes by introducing Qovery, a service that streamlines the integration of CI/CD into Kubernetes deployments, making it easier to deploy applications to AWS by leveraging Kubernetes' architecture.