mirror of https://github.com/k3s-io/k3s
66 lines
2.0 KiB
Go
66 lines
2.0 KiB
Go
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/*
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Copyright 2017 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 openapi
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import (
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"errors"
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openapi_v2 "github.com/googleapis/gnostic/OpenAPIv2"
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yaml "gopkg.in/yaml.v2"
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"k8s.io/apimachinery/pkg/runtime/schema"
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)
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func hasGVKExtension(extensions []*openapi_v2.NamedAny, gvk schema.GroupVersionKind) bool {
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for _, extension := range extensions {
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if extension.GetValue().GetYaml() == "" ||
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extension.GetName() != "x-kubernetes-group-version-kind" {
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continue
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}
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var value map[string]string
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err := yaml.Unmarshal([]byte(extension.GetValue().GetYaml()), &value)
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if err != nil {
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continue
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}
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if value["group"] == gvk.Group && value["kind"] == gvk.Kind && value["version"] == gvk.Version {
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return true
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}
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return false
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}
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return false
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}
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// SupportsDryRun is a method that let's us look in the OpenAPI if the
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// specific group-version-kind supports the dryRun query parameter for
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// the PATCH end-point.
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func SupportsDryRun(doc *openapi_v2.Document, gvk schema.GroupVersionKind) (bool, error) {
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for _, path := range doc.GetPaths().GetPath() {
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// Is this describing the gvk we're looking for?
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if !hasGVKExtension(path.GetValue().GetPatch().GetVendorExtension(), gvk) {
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continue
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}
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for _, param := range path.GetValue().GetPatch().GetParameters() {
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if param.GetParameter().GetNonBodyParameter().GetQueryParameterSubSchema().GetName() == "dryRun" {
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return true, nil
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}
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}
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return false, nil
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}
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return false, errors.New("couldn't find GVK in openapi")
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}
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