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    Container Service for Kubernetes:ack-rdma-device-plugin component introduction and change log

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    Container Service for Kubernetes:ack-rdma-device-plugin component introduction and change log

    Last Updated:Mar 26, 2026

    The ack-rdma-device-plugin component manages and exposes Remote Direct Memory Access (RDMA) hardware resources for nodes in an ACK cluster. It discovers RDMA devices on each node — such as Host Channel Adapter (HCA) cards — reports their health and availability, registers them as schedulable resources in Kubernetes, and allocates them to pods based on resource requests.

    Install this component in an ACK Lingjun node pool to use the high-performance RDMA network features of Lingjun nodes.

    Capabilities

    • Standard compatibility: Follows community device plugin standards to ensure compatibility and extensibility.

    • Container-native RDMA: In IPv6 network mode on Lingjun nodes, delivers RDMA network capabilities directly to the container network environment, improving performance for network-sensitive applications.

    • Arm architecture support: Runs on nodes with the Arm architecture.

    • Custom device names: Supports configuring custom names for RDMA devices.

    Next steps

    Use RDMA networks for pods on Lingjun nodes

    Change log

    October 2025

    Version number

    Registry address

    Change time

    Change description

    Impact

    1.1.2

    registry-cn-hangzhou.ack.aliyuncs.com/acs/k8s-rdma-sriov-dev-plugin:v1.1.2-5fee869

    October 24, 2025

    • Supports custom device names.

    • Optimized the display of custom component parameters.

    This upgrade does not affect your services.

    September 2025

    Version number

    Registry address

    Change time

    Change description

    Impact

    1.1.1

    registry-cn-hangzhou.ack.aliyuncs.com/acs/k8s-rdma-sriov-dev-plugin:v1.1.0-22f9697-aliyun

    September 12, 2025

    • Supports deployment and operation on nodes with the Arm architecture.

    • Fixed component configuration issues.

    • Added node affinity for Lingjun nodes to prioritize scheduling the component to Lingjun nodes.

    This upgrade does not affect your services.

    July 2025

    Version number

    Registry address

    Change time

    Change description

    Impact

    1.1.0

    registry-cn-hangzhou.ack.aliyuncs.com/acs/k8s-rdma-sriov-dev-plugin:v1.1.0-da78746-aliyun

    July 7, 2025

    Enabled support for container networks in IPv6 network mode on Lingjun nodes. Pods can now perform native RDMA communication.

    This upgrade does not affect your services.

    September 2023

    Version number

    Registry address

    Change time

    Change description

    Impact

    1.0.0

    registry-cn-hangzhou.ack.aliyuncs.com/acs/k8s-rdma-sriov-dev-plugin:v1.0.0-eeb8be6-aliyun

    September 1, 2023

    Published on the Add-ons page.

    Not applicable.