Kubernetes is an open-source system for automating deployment, scaling, and management of containerized applications. It groups containers making up logical units for easy management and discovery. Usage at CERN has been increasing, with tens of clusters deployed covering multiple use cases from data analysis to infrastructure services.
This project aims at improving the integration between Kubernetes and CephFS. CEPH is a popular multi-purpose storage solution, used at CERN for many years as the backend for block storage in the OpenStack deployment. It provides in addition a distributed filesystem, which recently became production ready. Kubernetes has a CephFS driver based on the CEPH kernel client, which lacks some important features and often lags behind compared to the FUSE client implementation.
Ready to use Kubernetes CephFS volume driver based on the FUSE client, scalable to thousands of concurrent clients.