ceph-csi/vendor/k8s.io/client-go/openapi/client.go
karthik-us 71925d553e rebase: bump k8s.io dependencies to v0.26.7
Bumping the k8s.io dependencies to v0.26.7. The main intention
is to update the client-go library dependency for kube 1.27+,
where aggregated discovery is enabled. With client-go lower than
v0.26.4 in some cases it is possible that the discovery response
comes with the malformed response with nil GVK leading to Crash
Loop Back Off state.

Upstream kubernetes issue:
https://github.com/kubernetes/kubernetes/pull/116603

Signed-off-by: karthik-us <ksubrahm@redhat.com>
2023-08-17 10:26:59 +00:00

70 lines
1.8 KiB
Go

/*
Copyright 2017 The Kubernetes 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 openapi
import (
"context"
"encoding/json"
"strings"
"k8s.io/client-go/rest"
"k8s.io/kube-openapi/pkg/handler3"
)
type Client interface {
Paths() (map[string]GroupVersion, error)
}
type client struct {
// URL includes the `hash` query param to take advantage of cache busting
restClient rest.Interface
}
func NewClient(restClient rest.Interface) Client {
return &client{
restClient: restClient,
}
}
func (c *client) Paths() (map[string]GroupVersion, error) {
data, err := c.restClient.Get().
AbsPath("/openapi/v3").
Do(context.TODO()).
Raw()
if err != nil {
return nil, err
}
discoMap := &handler3.OpenAPIV3Discovery{}
err = json.Unmarshal(data, discoMap)
if err != nil {
return nil, err
}
// Create GroupVersions for each element of the result
result := map[string]GroupVersion{}
for k, v := range discoMap.Paths {
// If the server returned a URL rooted at /openapi/v3, preserve any additional client-side prefix.
// If the server returned a URL not rooted at /openapi/v3, treat it as an actual server-relative URL.
// See https://github.com/kubernetes/kubernetes/issues/117463 for details
useClientPrefix := strings.HasPrefix(v.ServerRelativeURL, "/openapi/v3")
result[k] = newGroupVersion(c, v, useClientPrefix)
}
return result, nil
}