forked from kubevirt/client-go
/
version.go
88 lines (71 loc) · 2.05 KB
/
version.go
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/*
* This file is part of the KubeVirt project
*
* 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.
*
* Copyright 2018 Red Hat, Inc.
*
*/
package kubecli
import (
"context"
"encoding/json"
"fmt"
"net/url"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/rest"
v1 "kubevirt.io/api/core/v1"
"kubevirt.io/client-go/version"
)
const (
ApiGroupName = "/apis/" + v1.SubresourceGroupName
)
func (k *kubevirt) ServerVersion() ServerVersionInterface {
return &ServerVersion{
restClient: k.restClient,
resource: "version",
}
}
type ServerVersion struct {
restClient *rest.RESTClient
resource string
}
func (v *ServerVersion) Get() (*version.Info, error) {
var group metav1.APIGroup
// First, find out which version to query
uri := ApiGroupName
result := v.restClient.Get().AbsPath(uri).Do(context.Background())
if data, err := result.Raw(); err != nil {
connErr, isConnectionErr := err.(*url.Error)
if isConnectionErr {
return nil, connErr.Err
}
return nil, err
} else if err = json.Unmarshal(data, &group); err != nil {
return nil, err
}
// Now, query the preferred version
uri = fmt.Sprintf("/apis/%s/version", group.PreferredVersion.GroupVersion)
var serverInfo version.Info
result = v.restClient.Get().AbsPath(uri).Do(context.Background())
if data, err := result.Raw(); err != nil {
connErr, isConnectionErr := err.(*url.Error)
if isConnectionErr {
return nil, connErr.Err
}
return nil, err
} else if err = json.Unmarshal(data, &serverInfo); err != nil {
return nil, err
}
return &serverInfo, nil
}