kubernetes/staging/src/k8s.io/cloud-provider/node/helpers/taints.go

var updateTaintBackoff …

// AddOrUpdateTaintOnNode add taints to the node. If taint was added into node, it'll issue API calls
// to update nodes; otherwise, no API calls. Return error if any.
func AddOrUpdateTaintOnNode(c clientset.Interface, nodeName string, taints ...*v1.Taint) error { … }

// PatchNodeTaints patches node's taints.
func PatchNodeTaints(c clientset.Interface, nodeName string, oldNode *v1.Node, newNode *v1.Node) error { … }

// addOrUpdateTaint tries to add a taint to annotations list. Returns a new copy of updated Node and true if something was updated
// false otherwise.
func addOrUpdateTaint(node *v1.Node, taint *v1.Taint) (*v1.Node, bool, error) { … }

// RemoveTaintOffNode is for cleaning up taints temporarily added to node,
// won't fail if target taint doesn't exist or has been removed.
// If passed a node it'll check if there's anything to be done, if taint is not present it won't issue
// any API calls.
func RemoveTaintOffNode(c clientset.Interface, nodeName string, node *v1.Node, taints ...*v1.Taint) error { … }

// taintExists checks if the given taint exists in list of taints. Returns true if exists false otherwise.
func taintExists(taints []v1.Taint, taintToFind *v1.Taint) bool { … }

// removeTaint tries to remove a taint from annotations list. Returns a new copy of updated Node and true if something was updated
// false otherwise.
func removeTaint(node *v1.Node, taint *v1.Taint) (*v1.Node, bool, error) { … }

// deleteTaint removes all the taints that have the same key and effect to given taintToDelete.
func deleteTaint(taints []v1.Taint, taintToDelete *v1.Taint) ([]v1.Taint, bool) { … }