d3f48136d0
Co-authored-by: Jiahui Feng <jhf@google.com> Co-authored-by: Jordan Liggitt <liggitt@google.com>
73 lines
2.2 KiB
Go
73 lines
2.2 KiB
Go
/*
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Copyright 2022 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 resolver
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import (
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"strings"
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"k8s.io/apimachinery/pkg/api/meta"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/client-go/discovery"
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)
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type ResourceResolver interface {
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Resolve(gvk schema.GroupVersionKind) (schema.GroupVersionResource, error)
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}
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type discoveryResourceResolver struct {
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client discovery.DiscoveryInterface
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}
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func (d *discoveryResourceResolver) Resolve(gvk schema.GroupVersionKind) (schema.GroupVersionResource, error) {
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gv := gvk.GroupVersion()
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// TODO: refactor this into an efficient gvk --> gvr resolver that remembers hits and re-resolves group/version info on misses
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resources, err := d.client.ServerResourcesForGroupVersion(gv.String())
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if err != nil {
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return schema.GroupVersionResource{}, err
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}
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for _, resource := range resources.APIResources {
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if resource.Kind != gvk.Kind {
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// ignore unrelated kinds
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continue
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}
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if strings.Contains(resource.Name, "/") {
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// ignore subresources
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continue
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}
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if resource.Group != "" && resource.Group != gvk.Group {
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// group didn't match
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continue
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}
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if resource.Version != "" && resource.Version != gvk.Version {
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// version didn't match
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continue
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}
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return gv.WithResource(resource.Name), nil
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}
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return schema.GroupVersionResource{}, &meta.NoKindMatchError{GroupKind: gvk.GroupKind(), SearchedVersions: []string{gvk.Version}}
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}
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func NewDiscoveryResourceResolver(client discovery.DiscoveryInterface) (ResourceResolver, error) {
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return &discoveryResourceResolver{client: client}, nil
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}
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type ResourceResolverFunc func(gvk schema.GroupVersionKind) (schema.GroupVersionResource, error)
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func (f ResourceResolverFunc) Resolve(gvk schema.GroupVersionKind) (schema.GroupVersionResource, error) {
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return f(gvk)
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}
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