89 lines
2.5 KiB
Go
89 lines
2.5 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package util
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import (
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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"k8s.io/apimachinery/pkg/labels"
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)
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type GenericClusterReference struct {
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Name string `json:"name"`
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}
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type GenericPlacementFields struct {
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Clusters []GenericClusterReference `json:"clusters,omitempty"`
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ClusterSelector *metav1.LabelSelector `json:"clusterSelector,omitempty"`
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}
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type GenericPlacementSpec struct {
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Placement GenericPlacementFields `json:"placement,omitempty"`
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}
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type GenericPlacement struct {
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metav1.TypeMeta `json:",inline"`
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metav1.ObjectMeta `json:"metadata,omitempty"`
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Spec GenericPlacementSpec `json:"spec,omitempty"`
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}
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func UnmarshalGenericPlacement(obj *unstructured.Unstructured) (*GenericPlacement, error) {
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placement := &GenericPlacement{}
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err := UnstructuredToInterface(obj, placement)
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if err != nil {
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return nil, err
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}
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return placement, nil
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}
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func (p *GenericPlacement) ClusterNames() []string {
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if p.Spec.Placement.Clusters == nil {
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return nil
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}
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clusterNames := []string{}
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for _, cluster := range p.Spec.Placement.Clusters {
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clusterNames = append(clusterNames, cluster.Name)
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}
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return clusterNames
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}
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func (p *GenericPlacement) ClusterSelector() (labels.Selector, error) {
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return metav1.LabelSelectorAsSelector(p.Spec.Placement.ClusterSelector)
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}
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func GetClusterNames(obj *unstructured.Unstructured) ([]string, error) {
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placement, err := UnmarshalGenericPlacement(obj)
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if err != nil {
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return nil, err
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}
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return placement.ClusterNames(), nil
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}
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func SetClusterNames(obj *unstructured.Unstructured, clusterNames []string) error {
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var clusters []interface{}
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if clusterNames != nil {
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clusters = []interface{}{}
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for _, clusterName := range clusterNames {
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clusters = append(clusters, map[string]interface{}{
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NameField: clusterName,
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})
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}
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}
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return unstructured.SetNestedSlice(obj.Object, clusters, SpecField, PlacementField, ClustersField)
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}
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