# Functions
New returns a new service controller to keep cloud provider service resources (like load balancers) in sync with the registry.
# Constants
LabelNodeRoleExcludeBalancer specifies that the node should be exclude from load balancers created by a cloud provider.
LabelNodeRoleMaster specifies that a node is a master It's copied over to kubeadm until it's merged in core: https://github.com/kubernetes/kubernetes/pull/39112.
# Structs
ServiceController keeps cloud provider service resources (like load balancers) in sync with the registry.