forked from chaos-mesh/chaos-mesh
/
affected_namespaces.go
60 lines (49 loc) · 1.64 KB
/
affected_namespaces.go
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// Copyright 2021 Chaos Mesh Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package webhook
import (
"reflect"
"k8s.io/apimachinery/pkg/util/validation/field"
"github.com/chaos-mesh/chaos-mesh/api/genericwebhook"
"github.com/chaos-mesh/chaos-mesh/api/v1alpha1"
)
func affectedNamespaces(obj interface{}) (bool, map[string]struct{}) {
clusterScoped := false
namespaces := make(map[string]struct{})
walker := genericwebhook.NewFieldWalker(obj, func(path *field.Path, obj interface{}, field *reflect.StructField) bool {
// These are some trivial rules to cut a lot of edges.
if field != nil && (field.Name == "Status" || field.Name == "TypeMeta" || field.Name == "ObjectMeta") {
return false
}
if selector, ok := obj.(*v1alpha1.PodSelector); ok {
if selector == nil {
return false
}
for _, ns := range selector.Selector.Namespaces {
namespaces[ns] = struct{}{}
}
for namespace := range selector.Selector.Pods {
namespaces[namespace] = struct{}{}
}
if selector.Selector.ClusterScoped() {
clusterScoped = true
}
return true
}
return true
})
walker.Walk()
return clusterScoped, namespaces
}