Kubernetes v1.33: New features in DRA

Kubernetes v1.33: New features in DRA Features promoted to beta New alpha features Preparing for general availability What’s next? Getting involved Acknowledgments Kubernetes Dynamic Resource Allocation (DRA) was originally introduced as an alpha feature in the v1.26 release, and then went through a significant redesign for Kubernetes v1.31. The main DRA feature went to beta in v1.32, and the project hopes it will be generally available in Kubernetes v1.34. The basic feature set of DRA provides a far more powerful and flexible API for requesting devices than Device Plugin. And while DRA remains a beta feature for v1.33, the DRA team has been hard at work implementing a number of new features and UX improvements. One feature has been promoted to beta, while a number of new features have been added in alpha. The team has also made progress towards getting DRA ready for GA. Driver-owned Resource Claim Status was promoted to beta. This allows the driver to report driver-specific device status data for each allocated device in a resource claim, which is particularly useful for supporting network devices. Partitionable Devices lets a driver advertise several overlapping logical devices (“partitions”), and the driver can reconfigure the physical device dynamically based on the actual devices allocated. This makes it possible to partition devices on-demand to meet the needs of the workloads and therefore increase the utilization. Device Taints and Tolerations allow devices to be tainted and for workloads to tolerate those taints. This makes it possible for drivers or cluster administrators to mark devices as unavailable.