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Diffstat (limited to 'vendor/k8s.io/client-go/rest/versions.go')
-rw-r--r--vendor/k8s.io/client-go/rest/versions.go88
1 files changed, 88 insertions, 0 deletions
diff --git a/vendor/k8s.io/client-go/rest/versions.go b/vendor/k8s.io/client-go/rest/versions.go
new file mode 100644
index 000000000..9d41812f2
--- /dev/null
+++ b/vendor/k8s.io/client-go/rest/versions.go
@@ -0,0 +1,88 @@
+/*
+Copyright 2014 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 rest
+
+import (
+ "encoding/json"
+ "fmt"
+ "net/http"
+ "path"
+
+ metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+const (
+ legacyAPIPath = "/api"
+ defaultAPIPath = "/apis"
+)
+
+// TODO: Is this obsoleted by the discovery client?
+
+// ServerAPIVersions returns the GroupVersions supported by the API server.
+// It creates a RESTClient based on the passed in config, but it doesn't rely
+// on the Version and Codec of the config, because it uses AbsPath and
+// takes the raw response.
+func ServerAPIVersions(c *Config) (groupVersions []string, err error) {
+ transport, err := TransportFor(c)
+ if err != nil {
+ return nil, err
+ }
+ client := http.Client{Transport: transport}
+
+ configCopy := *c
+ configCopy.GroupVersion = nil
+ configCopy.APIPath = ""
+ baseURL, _, err := defaultServerUrlFor(&configCopy)
+ if err != nil {
+ return nil, err
+ }
+ // Get the groupVersions exposed at /api
+ originalPath := baseURL.Path
+ baseURL.Path = path.Join(originalPath, legacyAPIPath)
+ resp, err := client.Get(baseURL.String())
+ if err != nil {
+ return nil, err
+ }
+ var v metav1.APIVersions
+ defer resp.Body.Close()
+ err = json.NewDecoder(resp.Body).Decode(&v)
+ if err != nil {
+ return nil, fmt.Errorf("unexpected error: %v", err)
+ }
+
+ groupVersions = append(groupVersions, v.Versions...)
+ // Get the groupVersions exposed at /apis
+ baseURL.Path = path.Join(originalPath, defaultAPIPath)
+ resp2, err := client.Get(baseURL.String())
+ if err != nil {
+ return nil, err
+ }
+ var apiGroupList metav1.APIGroupList
+ defer resp2.Body.Close()
+ err = json.NewDecoder(resp2.Body).Decode(&apiGroupList)
+ if err != nil {
+ return nil, fmt.Errorf("unexpected error: %v", err)
+ }
+
+ for _, g := range apiGroupList.Groups {
+ for _, gv := range g.Versions {
+ groupVersions = append(groupVersions, gv.GroupVersion)
+ }
+ }
+
+ return groupVersions, nil
+}