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Merge pull request #43850 from xilabao/add-output-to-kubeadm-version

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Automatic merge from submit-queue

add --output flag to `kubeadm version`

ref to kubectl https://github.com/kubernetes/kubernetes/pull/39858
This commit is contained in:
Kubernetes Submit Queue 2017-04-26 03:16:51 -07:00 committed by GitHub
commit eb0bc857bd
4 changed files with 172 additions and 2 deletions
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2
cmd/kubeadm/app/cmd/BUILD
View File

@ -46,12 +46,14 @@ go_library(
"//pkg/util/initsystem:go_default_library",
"//pkg/version:go_default_library",
"//vendor/github.com/blang/semver:go_default_library",
"//vendor/github.com/ghodss/yaml:go_default_library",
"//vendor/github.com/renstrom/dedent:go_default_library",
"//vendor/github.com/spf13/cobra:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/fields:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/runtime:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/util/net:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/version:go_default_library",
"//vendor/k8s.io/apiserver/pkg/util/flag:go_default_library",
"//vendor/k8s.io/client-go/kubernetes:go_default_library",
"//vendor/k8s.io/client-go/pkg/api:go_default_library",

40
cmd/kubeadm/app/cmd/version.go
View File

@ -17,28 +17,64 @@ limitations under the License.
package cmd
import (
"encoding/json"
"fmt"
"io"
"github.com/ghodss/yaml"
"github.com/spf13/cobra"
apimachineryversion "k8s.io/apimachinery/pkg/version"
kubeadmutil "k8s.io/kubernetes/cmd/kubeadm/app/util"
cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
"k8s.io/kubernetes/pkg/util/i18n"
"k8s.io/kubernetes/pkg/version"
)
// Version provides the version information of kubeadm.
type Version struct {
ClientVersion *apimachineryversion.Info `json:"clientVersion"`
}
func NewCmdVersion(out io.Writer) *cobra.Command {
cmd := &cobra.Command{
Use: "version",
Short: "Print the version of kubeadm",
Short: i18n.T("Print the version of kubeadm"),
Run: func(cmd *cobra.Command, args []string) {
err := RunVersion(out, cmd)
kubeadmutil.CheckErr(err)
},
}
cmd.Flags().StringP("output", "o", "", "output format, options available are yaml, json and short")
return cmd
}
func RunVersion(out io.Writer, cmd *cobra.Command) error {
fmt.Fprintf(out, "kubeadm version: %#v\n", version.Get())
clientVersion := version.Get()
v := Version{
ClientVersion: &clientVersion,
}
switch of := cmdutil.GetFlagString(cmd, "output"); 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.Marshal(&v)
if err != nil {
return err
}
fmt.Fprintln(out, string(y))
default:
return fmt.Errorf("invalid output format: %s", of)
}
return nil
}

2
cmd/kubeadm/test/cmd/BUILD
View File

@ -21,6 +21,7 @@ go_test(
"init_test.go",
"join_test.go",
"token_test.go",
"version_test.go",
],
args = ["--kubeadm-path=../../kubeadm"],
data = ["//cmd/kubeadm"],
@ -30,6 +31,7 @@ go_test(
"integration",
"skip",
],
deps = ["//vendor/github.com/ghodss/yaml:go_default_library"],
)
filegroup(

130
cmd/kubeadm/test/cmd/version_test.go Normal file
View File

@ -0,0 +1,130 @@
/*
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 kubeadm
import (
"encoding/json"
"regexp"
"testing"
"github.com/ghodss/yaml"
)
const (
ShortExpectedRegex = "^v.+\n$"
NormalExpectedRegex = "^kubeadm version: &version\\.Info{Major:\".+\", Minor:\".+\", GitVersion:\".+\", GitCommit:\".+\", GitTreeState:\".+\", BuildDate:\".+\", GoVersion:\".+\", Compiler:\".+\", Platform:\".+\"}\n$"
)
var (
VersionInfo = []string{"major", "minor", "gitVersion", "gitCommit", "gitTreeState", "buildDate", "goVersion", "compiler", "platform"}
)
func TestCmdVersion(t *testing.T) {
if *kubeadmCmdSkip {
t.Log("kubeadm cmd tests being skipped")
t.Skip()
}
var versionTest = []struct {
args string
regex string
expected bool
}{
{"--output=valid", "", false},
{"--output=short", ShortExpectedRegex, true},
{"", NormalExpectedRegex, true},
}
for _, rt := range versionTest {
stdout, _, actual := RunCmd(*kubeadmPath, "version", rt.args)
if (actual == nil) != rt.expected {
t.Errorf(
"failed CmdVersion running 'kubeadm version %s' with an error: %v\n\texpected: %t\n\t actual: %t",
rt.args,
actual,
rt.expected,
(actual == nil),
)
}
if rt.expected {
matched, err := regexp.MatchString(rt.regex, stdout)
if err != nil {
t.Fatalf("encountered an error while trying to match 'kubeadm version %s' stdout: %v", rt.args, err)
}
if !matched {
t.Errorf("'kubeadm version %s' stdout did not match expected regex; wanted: [%q], got: [%s]", rt.args, rt.regex, stdout)
}
}
}
}
func TestCmdVersionOutputJsonOrYaml(t *testing.T) {
if *kubeadmCmdSkip {
t.Log("kubeadm cmd tests being skipped")
t.Skip()
}
var versionTest = []struct {
args string
format string
expected bool
}{
{"--output=json", "json", true},
{"--output=yaml", "yaml", true},
}
for _, rt := range versionTest {
stdout, _, actual := RunCmd(*kubeadmPath, "version", rt.args)
if (actual == nil) != rt.expected {
t.Errorf(
"failed CmdVersion running 'kubeadm version %s' with an error: %v\n\texpected: %t\n\t actual: %t",
rt.args,
actual,
rt.expected,
(actual == nil),
)
}
if rt.expected {
var obj interface{}
switch rt.format {
case "json":
err := json.Unmarshal([]byte(stdout), &obj)
if err != nil {
t.Errorf("failed to parse json from 'kubeadm version %s': %s", rt.args, err)
}
case "yaml":
err := yaml.Unmarshal([]byte(stdout), &obj)
if err != nil {
t.Errorf("failed to parse yaml from 'kubeadm version %s': %s", rt.args, err)
}
}
m := obj.(map[string]interface{})
if m["clientVersion"] == nil {
t.Errorf("failed to get the infomation of clientVersion from 'kubeadm version %s'", rt.args)
}
info := m["clientVersion"].(map[string]interface{})
for _, key := range VersionInfo {
if len(info[key].(string)) == 0 {
t.Errorf("failed to get the infomation of %s from 'kubeadm version %s'", key, rt.args)
}
}
}
}
}