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Container Service for Kubernetes:Components, usage, and release notes for kube-flannel-ds-windows

Last Updated:Mar 26, 2026

kube-flannel-ds-windows is the container network plugin used by ACK managed clusters to build an l2bridge cluster network for Windows containers to communicate. This page covers deployment requirements and release history for kube-flannel-ds-windows.

Prerequisites

kube-flannel-ds-windows deploys automatically as a DaemonSet when you select Flannel as the network plugin during ACK managed cluster creation.

Before using kube-flannel-ds-windows, note the following requirements:

  • Node label: kube-flannel-ds-windows runs only on Windows nodes with the windows.alibabacloud.com/deployment-topology=2.0 label. This label is applied to Windows nodes by default at creation time.

  • Privileged process dependency: kube-flannel-ds-windows depends on privileged processes hosted on Windows nodes.

Supported network modes

kube-flannel-ds-windows supports two network modes. By default, Alibaba Cloud uses l2bridge networks.

Network mode Default
l2bridge Yes (Alibaba Cloud default)
overlay No

Release notes

May 2024

Version Image address Release date Description Impact
v0.15.2-aliyun registry-${region}.ack.aliyuncs.com/acs/flannel-windows:v0.15.2-aliyun 2024-05-08 Flannel is updated. Windows Server version 1809 (10.0.17763.2114) and Windows Server version 2022 (10.0.20348.2322) are supported. No impact on workloads.

January 2022

Version Image address Release date Description Impact
v0.15.1.1-6e1a57c8-aliyun registry-vpc.${region}.aliyuncs.com/acs/flannel-windows:v0.15.1.1-6e1a57c8-aliyun 2022-01-21 Flannel is updated. Windows Server version 1809 (10.0.17763.2114), version 1909 (10.0.18363.1556), and version 2004 (10.0.19041.1165) are supported. No impact on workloads.

August 2021

Version Image address Release date Description Impact
v0.13.1-aliyun.3 registry-vpc.${region}.aliyuncs.com/acs/flannel-windows:v0.13.1-aliyun.3 2021-08-22 Base images are updated. The original version number is overwritten. Windows Server version 1809 (10.0.17763.2114), version 1909 (10.0.18363.1556), and version 2004 (10.0.19041.1165) are supported. No impact on workloads.

July 2021

Version Image address Release date Description Impact
v0.13.1-aliyun.3 registry-vpc.${region}.aliyuncs.com/acs/flannel-windows:v0.13.1-aliyun.3 2021-07-05 Base images are updated. The original version number is overwritten. Windows Server version 1809 (10.0.17763.1999), version 1909 (10.0.18363.1556), and version 2004 (10.0.19041.1052) are supported. No impact on workloads.

June 2021

Version Image address Release date Description Impact
v0.13.1-aliyun.3 registry-vpc.${region}.aliyuncs.com/acs/flannel-windows:v0.13.1-aliyun.3 2021-06-17 Base images are updated. Windows Server version 1809 (10.0.17763.1935), version 1909 (10.0.18363.1556), and version 2004 (10.0.19041.985) are supported. No impact on workloads.

May 2021

Version Image address Release date Description Impact
v0.13.1-aliyun.2 registry-vpc.${region}.aliyuncs.com/acs/flannel-windows:v0.13.1-aliyun.2 2021-05-13 Container Network Interface (CNI) configurations can be automatically shifted when containerd is used as the container runtime. Windows Server version 1809 (10.0.17763.1879), version 1909 (10.0.18363.1500), and version 2004 (10.0.19041.928) are supported. No impact on workloads.

April 2021

Version Image address Release date Description Impact
v0.13.1-aliyun.1 registry-vpc.${region}.aliyuncs.com/acs/flannel-windows:v0.13.1-aliyun.1 2021-04-22 Rancher Wins is automatically installed on Windows nodes with the windows.alibabacloud.com/deployment-topology=2.0 label, enabling Flannel deployment on Windows nodes. Both l2bridge and overlay networks are supported; by default, Alibaba Cloud uses l2bridge networks. Windows Server version 1809 (10.0.17763.1879), version 1909 (10.0.18363.1500), and version 2004 (10.0.19041.928) are supported. No impact on workloads.