mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-13 01:40:23 +00:00
90 lines
2.4 KiB
Go
90 lines
2.4 KiB
Go
/*
|
|
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 cmd
|
|
|
|
import (
|
|
"fmt"
|
|
"sort"
|
|
|
|
"github.com/spf13/cobra"
|
|
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
"k8s.io/client-go/discovery"
|
|
"k8s.io/kubernetes/pkg/kubectl/cmd/templates"
|
|
cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
|
|
"k8s.io/kubernetes/pkg/kubectl/genericclioptions"
|
|
"k8s.io/kubernetes/pkg/kubectl/util/i18n"
|
|
)
|
|
|
|
var (
|
|
apiversionsExample = templates.Examples(i18n.T(`
|
|
# Print the supported API versions
|
|
kubectl api-versions`))
|
|
)
|
|
|
|
type ApiVersionsOptions struct {
|
|
discoveryClient discovery.CachedDiscoveryInterface
|
|
|
|
genericclioptions.IOStreams
|
|
}
|
|
|
|
func NewApiVersionsOptions(ioStreams genericclioptions.IOStreams) *ApiVersionsOptions {
|
|
return &ApiVersionsOptions{
|
|
IOStreams: ioStreams,
|
|
}
|
|
}
|
|
|
|
func NewCmdApiVersions(f cmdutil.Factory, ioStreams genericclioptions.IOStreams) *cobra.Command {
|
|
o := NewApiVersionsOptions(ioStreams)
|
|
cmd := &cobra.Command{
|
|
Use: "api-versions",
|
|
Short: "Print the supported API versions on the server, in the form of \"group/version\"",
|
|
Long: "Print the supported API versions on the server, in the form of \"group/version\"",
|
|
Example: apiversionsExample,
|
|
Run: func(cmd *cobra.Command, args []string) {
|
|
cmdutil.CheckErr(o.Complete(f))
|
|
cmdutil.CheckErr(o.RunApiVersions())
|
|
},
|
|
}
|
|
return cmd
|
|
}
|
|
|
|
func (o *ApiVersionsOptions) Complete(f cmdutil.Factory) error {
|
|
var err error
|
|
o.discoveryClient, err = f.ToDiscoveryClient()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (o *ApiVersionsOptions) RunApiVersions() error {
|
|
// Always request fresh data from the server
|
|
o.discoveryClient.Invalidate()
|
|
|
|
groupList, err := o.discoveryClient.ServerGroups()
|
|
if err != nil {
|
|
return fmt.Errorf("Couldn't get available api versions from server: %v\n", err)
|
|
}
|
|
apiVersions := metav1.ExtractGroupVersions(groupList)
|
|
sort.Strings(apiVersions)
|
|
for _, v := range apiVersions {
|
|
fmt.Fprintln(o.Out, v)
|
|
}
|
|
return nil
|
|
}
|