kube-vip is an open-source project that provides virtual IP and load balancing capabilities for the control plane of a K8s cluster and Service objects of the LoadBalancer type, without depending on other software or hardware devices. When AKE creates a management cluster or workload cluster, it automatically deploys the kube-vip service in the cluster and configures the virtual IP specified by the user as the virtual IP of the control plane of the management cluster or workload cluster, so that this virtual IP can always be used to access the cluster from outside the cluster. In addition, AKE uses virtual machine placement group rules to place the virtual machines of control plane nodes on different physical hosts. When the number of control plane nodes in the management cluster or workload cluster is 3 or 5, high availability of the cluster control plane is implemented.
