kube-flannel-ds is a network component that is used to configure overlay networks for containers in Container Service for Kubernetes (ACK) edge clusters. This topic introduces kube-flannel-ds and describes the release notes for kube-flannel-ds.

Introduction

The kube-flannel-ds component is automatically installed when you create an ACK edge cluster. The component is deployed as a DaemonSet and used to configure Virtual Extensible LAN (VXLAN) devices, forwarding database (FDB) tables, and routing information for cluster nodes. This allows you to enable communication between containers on the same node or different nodes.

Usage notes

The kube-flannel-ds component is automatically configured in the Container Network Interface (CNI) plug-in. You can directly use kube-flannel-ds after you create applications by calling the Kubernetes API. If Flannel is required to enable cloud-edge communication, you must configure the security group rules of the Elastic Compute Service (ECS) instances in the cloud to allow access to UDP port 8472. This port is the default Virtual Extensible LAN (VXLAN) port.

Release notes

January 2022
Version Image address Release date Description Impact
v0.13.1.3-6838863-aliyun registry.{reigonID}.aliyuncs.com/acs/flannel:v0.13.1.3-6838863-aliyun January 2022 Routes can be automatically configured by Flannel in cloud-edge communication scenarios and network-enhanced edge node pools. This update has no negative impact on workloads.
May 2021
Version Image address Release date Description Impact
v0.11.0.6-1283a29-aliyun registry.cn-hangzhou.aliyuncs.com/acs/flannel:v0.11.0.6-1283a29-aliyun May 2021 A startup parameter named enable-cloud-edge-isolate is added. Overlay routing between edge nodes and nodes in the cloud is supported. This update has no negative impact on workloads.
January 2021
Version Image address Release date Description Impact
v0.11.0.5-437a359-aliyun registry.cn-hangzhou.aliyuncs.com/acs/flannel:v0.11.0.5-437a359-aliyun January 2021 None This update has no negative impact on workloads.