Kubernetes is a powerful open-source system for automating deployment, scaling, and management of containerized applications. It provides a platform for deploying, managing, and monitoring applications in a distributed environment. Kubernetes enables developers to quickly and reliably deploy applications, configure networking and storage, and scale resources. It also provides a rich API for automating deployment, scaling, and management of applications. Kubernetes enables developers to quickly and reliably deploy applications, configure networking and storage, and scale resources. It also provides a rich API for automating deployment, scaling, and management of applications. Kubernetes is designed to be cloud-agnostic, allowing applications to be easily deployed to any environment. It also provides a platform for managing multiple clusters, making it easier to deploy applications across multiple cloud environments. Kubernetes also provides built-in security, allowing organizations to securely manage their applications and data. Kubernetes includes support for a variety of different tools, including monitoring, logging, and alerting tools, as well as services for auto-scaling, high availability, and self-healing clusters.
virt-manager can manage clusters of multiple physical hosts of virtual machines, each running many virtual machines. It offers advanced orchestration features, such as migration of virtual machines between hosts with no downtime, storage provisioning, network/firewall configuration and live snapshots. A major difference between Kubernetes and virt-manager (as well as the libvirt ecosystem in general) is that Kubernetes manages containers. Kubernetes manages containers, while libvirt manages entire virtual machines running on a hypervisor such as KVM, Xen or ESX.