Merge pull request #1297 from marquiz/devel/topology-updater-version

topology-updater: make -version always runnable

cmd/nfd-topology-updater/main.go

@@ -43,15 +43,8 @@ var DefaultKubeletStateDir = path.Join(string(hostpath.VarDir), "lib", "kubelet"
 func main() {
 	flags := flag.NewFlagSet(ProgramName, flag.ExitOnError)
 
-	printVersion := flags.Bool("version", false, "Print version and exit.")
-
 	args, resourcemonitorArgs := parseArgs(flags, os.Args[1:]...)
 
-	if *printVersion {
-		fmt.Println(ProgramName, version.Get())
-		os.Exit(0)
-	}
-
 	// Assert that the version is known
 	if version.Undefined() {
 		klog.InfoS("version not set! Set -ldflags \"-X sigs.k8s.io/node-feature-discovery/pkg/version.version=`git describe --tags --dirty --always`\" during build or run.")
@@ -75,6 +68,7 @@ func main() {
 
 func parseArgs(flags *flag.FlagSet, osArgs ...string) (*topology.Args, *resourcemonitor.Args) {
 	args, resourcemonitorArgs := initFlags(flags)
+	printVersion := flags.Bool("version", false, "Print version and exit.")
 
 	_ = flags.Parse(osArgs)
 	if len(flags.Args()) > 0 {
@@ -83,6 +77,11 @@ func parseArgs(flags *flag.FlagSet, osArgs ...string) (*topology.Args, *resource
 		os.Exit(2)
 	}
 
+	if *printVersion {
+		fmt.Println(ProgramName, version.Get())
+		os.Exit(0)
+	}
+
 	if len(resourcemonitorArgs.KubeletConfigURI) == 0 {
 		nodeAddress := os.Getenv("NODE_ADDRESS")
 		if len(nodeAddress) == 0 {