89 lines
2.3 KiB
Go
89 lines
2.3 KiB
Go
/*
|
|
Copyright 2016 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 (
|
|
"encoding/json"
|
|
"fmt"
|
|
"io"
|
|
|
|
"github.com/pkg/errors"
|
|
"github.com/spf13/cobra"
|
|
"k8s.io/klog"
|
|
"sigs.k8s.io/yaml"
|
|
|
|
apimachineryversion "k8s.io/apimachinery/pkg/version"
|
|
"k8s.io/component-base/version"
|
|
)
|
|
|
|
// Version provides the version information of kubeadm.
|
|
type Version struct {
|
|
ClientVersion *apimachineryversion.Info `json:"clientVersion"`
|
|
}
|
|
|
|
// NewCmdVersion provides the version information of kubeadm.
|
|
func NewCmdVersion(out io.Writer) *cobra.Command {
|
|
cmd := &cobra.Command{
|
|
Use: "version",
|
|
Short: "Print the version of kubeadm",
|
|
RunE: func(cmd *cobra.Command, args []string) error {
|
|
return RunVersion(out, cmd)
|
|
},
|
|
}
|
|
cmd.Flags().StringP("output", "o", "", "Output format; available options are 'yaml', 'json' and 'short'")
|
|
return cmd
|
|
}
|
|
|
|
// RunVersion provides the version information of kubeadm in format depending on arguments
|
|
// specified in cobra.Command.
|
|
func RunVersion(out io.Writer, cmd *cobra.Command) error {
|
|
klog.V(1).Infoln("[version] retrieving version info")
|
|
clientVersion := version.Get()
|
|
v := Version{
|
|
ClientVersion: &clientVersion,
|
|
}
|
|
|
|
const flag = "output"
|
|
of, err := cmd.Flags().GetString(flag)
|
|
if err != nil {
|
|
return errors.Wrapf(err, "error accessing flag %s for command %s", flag, cmd.Name())
|
|
}
|
|
|
|
switch of {
|
|
case "":
|
|
fmt.Fprintf(out, "kubeadm version: %#v\n", v.ClientVersion)
|
|
case "short":
|
|
fmt.Fprintf(out, "%s\n", v.ClientVersion.GitVersion)
|
|
case "yaml":
|
|
y, err := yaml.Marshal(&v)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
fmt.Fprintln(out, string(y))
|
|
case "json":
|
|
y, err := json.MarshalIndent(&v, "", " ")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
fmt.Fprintln(out, string(y))
|
|
default:
|
|
return errors.Errorf("invalid output format: %s", of)
|
|
}
|
|
|
|
return nil
|
|
}
|