kubernetes/pkg/controller/nodeipam/node_ipam_controller.go

type ipamController …

type Controller …

// NewNodeIpamController returns a new node IP Address Management controller to
// sync instances from cloudprovider.
// This method returns an error if it is unable to initialize the CIDR bitmap with
// podCIDRs it has already allocated to nodes. Since we don't allow podCIDR changes
// currently, this should be handled as a fatal error.
func NewNodeIpamController(
	ctx context.Context,
	nodeInformer coreinformers.NodeInformer,
	cloud cloudprovider.Interface,
	kubeClient clientset.Interface,
	clusterCIDRs []*net.IPNet,
	serviceCIDR *net.IPNet,
	secondaryServiceCIDR *net.IPNet,
	nodeCIDRMaskSizes []int,
	allocatorType ipam.CIDRAllocatorType) (*Controller, error) { … }

// Run starts an asynchronous loop that monitors the status of cluster nodes.
func (nc *Controller) Run(ctx context.Context) { … }

// RunWithMetrics is a wrapper for Run that also tracks starting and stopping of the nodeipam controller with additional metric
func (nc *Controller) RunWithMetrics(ctx context.Context, controllerManagerMetrics *controllersmetrics.ControllerManagerMetrics) { … }