This subsection describes the architecture of the Virtualization subsystem of Deckhouse Kubernetes Platform (DKP).

The Virtualization subsystem is represented by the virtualization module, which allows you to declaratively create, run, and manage virtual machines (VM) and their resources.

The virtualization module consists of the following components:

  • Virtualization API (API): A controller that implements a user API for creating and managing VM resources.
  • A module core (CORE): It is based on the KubeVirt project and uses QEMU/KVM + libvirtd to run VMs. KubeVirt is an open-source project that allows you to launch, deploy, and manage VMs using Kubernetes as an orchestration platform. It enables a cooperation between traditional VMs and container workloads in the same Kubernetes cluster, providing a single control plane.
  • Deckhouse Virtualization Container Registry (DVCR): A container registry for storing and caching VM images.
  • Containerized Data Importer (CDI): It is an add-on for managing persistent storage in Kubernetes. Its main goal is to provide a declarative way to create VM disks based on PersistentVolumeClaim (PVC) resources. CDI provides the ability to import VM images and disks into PVC volumes for use in KubeVirt-managed VMs.

  • Auxiliary components: Components that implement the following auxiliary functions:

    • Security events audit.
    • Forwarding USB devices to VMs.
    • Updating network routes.
    • Deleting resources before deactivating the virtualization module.

For more details about the module, refer to the module documentation section.

Additional resources