Kubernetes (K8s) is a widely used open-source platform for managing software infrastructure through containerization, originally developed by Google as an internal project called Borg. It provides a control plane and worker nodes for managing applications in containers, offering developers mobility and precise control over applications throughout the product lifecycle. Key tools such as kubectl, kubefed, Minikube, and Dashboard allow users to interact with and manage K8s clusters effectively. Kubectl is used for deploying changes and inspecting K8s objects, kubefed manages multiple clusters with a federated control plane, Minikube allows local cluster testing, and Dashboard provides a web interface for monitoring cluster states. Additional tools such as Helm, Kompose, kubeadm, and Istio enhance the K8s ecosystem by facilitating package management, Dockerfile conversion, cluster building, and message management, respectively. The open-source community continues to innovate within the K8s framework, making it an evolving and exciting platform for developers.