Golang Object.GetAnnotations方法代码示例

// reorganizeTaints returns the updated set of taints, taking into account old taints that were not updated,
// old taints that were updated, old taints that were deleted, and new taints.
func reorganizeTaints(accessor metav1.Object, overwrite bool, taintsToAdd []v1.Taint, taintsToRemove []v1.Taint) ([]v1.Taint, error) {
	newTaints := append([]v1.Taint{}, taintsToAdd...)

	var oldTaints []v1.Taint
	var err error
	annotations := accessor.GetAnnotations()
	if annotations != nil {
		if oldTaints, err = v1.GetTaintsFromNodeAnnotations(annotations); err != nil {
			return nil, err
		}
	}

	// add taints that already existing but not updated to newTaints
	for _, oldTaint := range oldTaints {
		existsInNew := false
		for _, taint := range newTaints {
			if taint.MatchTaint(oldTaint) {
				existsInNew = true
				break
			}
		}
		if !existsInNew {
			newTaints = append(newTaints, oldTaint)
		}
	}

	allErrs := []error{}
	for _, taintToRemove := range taintsToRemove {
		newTaints, err = deleteTaint(newTaints, taintToRemove)
		if err != nil {
			allErrs = append(allErrs, err)
		}
	}
	return newTaints, utilerrors.NewAggregate(allErrs)
}

// validateNoAnnotationOverwrites validates that when overwrite is false, to-be-updated annotations don't exist in the object annotation map (yet)
func validateNoAnnotationOverwrites(accessor metav1.Object, annotations map[string]string) error {
	var buf bytes.Buffer
	for key := range annotations {
		// change-cause annotation can always be overwritten
		if key == kubectl.ChangeCauseAnnotation {
			continue
		}
		if value, found := accessor.GetAnnotations()[key]; found {
			if buf.Len() > 0 {
				buf.WriteString("; ")
			}
			buf.WriteString(fmt.Sprintf("'%s' already has a value (%s)", key, value))
		}
	}
	if buf.Len() > 0 {
		return fmt.Errorf("--overwrite is false but found the following declared annotation(s): %s", buf.String())
	}
	return nil
}

// validateNoTaintOverwrites validates that when overwrite is false, to-be-updated taints don't exist in the node taint list (yet)
func validateNoTaintOverwrites(accessor metav1.Object, taints []v1.Taint) error {
	annotations := accessor.GetAnnotations()
	if annotations == nil {
		return nil
	}

	allErrs := []error{}
	oldTaints, err := v1.GetTaintsFromNodeAnnotations(annotations)
	if err != nil {
		allErrs = append(allErrs, err)
		return utilerrors.NewAggregate(allErrs)
	}

	for _, taint := range taints {
		for _, oldTaint := range oldTaints {
			if taint.Key == oldTaint.Key && taint.Effect == oldTaint.Effect {
				allErrs = append(allErrs, fmt.Errorf("Node '%s' already has a taint with key (%s) and effect (%v), and --overwrite is false", accessor.GetName(), taint.Key, taint.Effect))
				break
			}
		}
	}
	return utilerrors.NewAggregate(allErrs)
}