Volume Populators for Virtual Disks - A Case Study

Explore the evolution and implementation of Volume Populators for virtual disks in Kubernetes and OpenShift in this 27-minute conference talk from DevConf.CZ 2023. Dive into the "Volume Populators" feature, which graduated to beta in Kubernetes 1.24 and enables pairing persistent volume claims with custom resources as data sources. Learn how this feature forms the foundation for new capabilities in Forklift / Migration Toolkit for Virtualization (MTV) 2.4, facilitating the population of virtual disks from foreign virtualization management systems to KubeVirt / OpenShift Virtualization. Follow the journey from Containerized Data Importer (CDI) to OpenShift's volume populators, examining their integration into Forklift / MTV and the modifications made to kubernetes-csi/lib-volume-populator. Gain insights from both successful implementations in oVirt and Openstack, as well as challenges faced with vSphere. Speaker Arik Hadas provides a comprehensive overview of this crucial development in virtual disk management and migration.