Revert "Remove utils.Version()"

This reverts commit c5f48d96d3.

utils/utils.go

@@ -125,6 +125,26 @@ func FindCommand(def string, options []string) string {
 	return def
 }
 
+func K3sBin() string {
+	for _, p := range []string{"/usr/bin/k3s", "/usr/local/bin/k3s"} {
+		if _, err := os.Stat(p); err == nil {
+			return p
+		}
+	}
+
+	return ""
+}
+
+func K0sBin() string {
+	for _, p := range []string{"/usr/bin/k0s", "/usr/local/bin/k0s"} {
+		if _, err := os.Stat(p); err == nil {
+			return p
+		}
+	}
+
+	return ""
+}
+
 func WriteEnv(envFile string, config map[string]string) error {
 	content, err := os.ReadFile(envFile)
 	if err != nil && !os.IsNotExist(err) {
@@ -251,6 +271,28 @@ func PowerOFF() {
 	}
 }
 
+func Version() string {
+	// Check for K3s version
+	k3sBin := K3sBin()
+	if k3sBin != "" {
+		v, err := OSRelease("VERSION")
+		if err == nil {
+			return strings.ReplaceAll(v, "+k3s1-Kairos", "-")
+		}
+	}
+
+	// Check for K0s version
+	k0sBin := K0sBin()
+	if k0sBin != "" {
+		v, err := SH(fmt.Sprintf("%s version", k0sBin))
+		if err == nil {
+			return strings.TrimSpace(v)
+		}
+	}
+
+	return ""
+}
+
 func ListToOutput(rels []string, output string) []string {
 	switch strings.ToLower(output) {
 	case "yaml":