// reconcileCMADAnnotationWithExistingNode reconciles the controller-managed
// attach-detach annotation on a new node and the existing node, returning
// whether the existing node must be updated.
func (kl *Kubelet) reconcileCMADAnnotationWithExistingNode(node, existingNode *v1.Node) bool {
var (
existingCMAAnnotation = existingNode.Annotations[volumehelper.ControllerManagedAttachAnnotation]
newCMAAnnotation, newSet = node.Annotations[volumehelper.ControllerManagedAttachAnnotation]
)
if newCMAAnnotation == existingCMAAnnotation {
return false
}
// If the just-constructed node and the existing node do
// not have the same value, update the existing node with
// the correct value of the annotation.
if !newSet {
glog.Info("Controller attach-detach setting changed to false; updating existing Node")
delete(existingNode.Annotations, volumehelper.ControllerManagedAttachAnnotation)
} else {
glog.Info("Controller attach-detach setting changed to true; updating existing Node")
if existingNode.Annotations == nil {
existingNode.Annotations = make(map[string]string)
}
existingNode.Annotations[volumehelper.ControllerManagedAttachAnnotation] = newCMAAnnotation
}
return true
}
func addToBeDeletedTaint(node *apiv1.Node) (bool, error) {
taints, err := apiv1.GetTaintsFromNodeAnnotations(node.Annotations)
if err != nil {
glog.Warningf("Error while getting Taints for node %v: %v", node.Name, err)
return false, err
}
for _, taint := range taints {
if taint.Key == ToBeDeletedTaint {
glog.Infof("ToBeDeletedTaint already present on on node %v", taint, node.Name)
return false, nil
}
}
taints = append(taints, apiv1.Taint{
Key: ToBeDeletedTaint,
Value: time.Now().String(),
Effect: apiv1.TaintEffectNoSchedule,
})
taintsJson, err := json.Marshal(taints)
if err != nil {
glog.Warningf("Error while adding taints on node %v: %v", node.Name, err)
return false, err
}
if node.Annotations == nil {
node.Annotations = make(map[string]string)
}
node.Annotations[apiv1.TaintsAnnotationKey] = string(taintsJson)
return true, nil
}
