This feature is supported since v1.21.0. Background The in-tree Node IPAM controller only supports a fixed node CIDR mask size for all nodes, while in multiple node pool (VMSS) scenarios, different mask sizes are required for different node pools. There is a GCE-specific cloud CIDR allocator for a similar scenario, but that is not exposed in cloud provider API and it is planned to be moved out-of-tree. Hence this docs proposes an out-of-tree node IPAM controller. Specifically, allocate differ...