// PrintAndExitIfRequested will check if the -version flag was passed
// and, if so, print the version and exit.
func PrintAndExitIfRequested() {
if *versionFlag == VersionRaw {
fmt.Printf("%#v\n", version.Get())
os.Exit(0)
} else if *versionFlag == VersionTrue {
fmt.Printf("Kubernetes %s\n", version.Get())
os.Exit(0)
}
}
// DefaultKubernetesUserAgent returns the default user agent that clients can use.
func DefaultKubernetesUserAgent() string {
commit := version.Get().GitCommit
if len(commit) > 7 {
commit = commit[:7]
}
if len(commit) == 0 {
commit = "unknown"
}
version := version.Get().GitVersion
seg := strings.SplitN(version, "-", 2)
version = seg[0]
return fmt.Sprintf("%s/%s (%s/%s) kubernetes/%s", path.Base(os.Args[0]), version, gruntime.GOOS, gruntime.GOARCH, commit)
}
func (c *FakeDiscovery) ServerVersion() (*version.Info, error) {
action := ActionImpl{}
action.Verb = "get"
action.Resource = "version"
c.Invokes(action, nil)
versionInfo := version.Get()
return &versionInfo, nil
}
// MatchesServerVersion queries the server to compares the build version
// (git hash) of the client with the server's build version. It returns an error
// if it failed to contact the server or if the versions are not an exact match.
func MatchesServerVersion(client *Client, c *Config) error {
var err error
if client == nil {
client, err = New(c)
if err != nil {
return err
}
}
clientVersion := version.Get()
serverVersion, err := client.Discovery().ServerVersion()
if err != nil {
return fmt.Errorf("couldn't read version from server: %v\n", err)
}
if s := *serverVersion; !reflect.DeepEqual(clientVersion, s) {
return fmt.Errorf("server version (%#v) differs from client version (%#v)!\n", s, clientVersion)
}
return nil
}