fix: skip registration if node.yaml exists, fix else block brace

internal/native/native.go

@@ -82,14 +82,46 @@ func InstallNode(node state.Node, apiToken, apiHost, labels string) error {
 	fmt.Printf("[%s] Configuring NGINX module...\n", node.Name)
 	exec.Command("bash", filepath.Join(DeployTo, "pick-module.sh")).Run()
 
-	fmt.Printf("[%s] Registering node (this may take 30-60s)...\n", node.Name)
-	registerCmd := exec.Command("bash", "-c",
-		fmt.Sprintf("source %s/env.list 2>/dev/null; %s/register-node job:register -token '%s' -host '%s'",
-			DeployTo, DeployTo, apiToken, apiHost))
-	registerCmd.Dir = DeployTo
-	out, regErr := registerCmd.CombinedOutput()
-	if regErr != nil {
-		return fmt.Errorf("register: %w\n%s", regErr, string(out))
+	// 6. Register node (skip if already registered from previous run)
+	nodeYaml := filepath.Join(DeployTo, "etc", "wallarm", "node.yaml")
+	if _, err := os.Stat(nodeYaml); err == nil {
+		fmt.Printf("[%s] Already registered, skipping.\n", node.Name)
+	} else {
+		fmt.Printf("[%s] Registering node (this may take 30-60s)...\n", node.Name)
+		registerCmd := exec.Command(filepath.Join(DeployTo, "register-node"),
+			"job:register",
+			"-token", apiToken,
+			"-host", apiHost,
+		)
+		registerCmd.Dir = DeployTo
+		devNull, _ := os.Open(os.DevNull)
+		if devNull != nil {
+			registerCmd.Stdin = devNull
+			defer devNull.Close()
+		}
+		// Set environment from env.list
+		envData, _ := os.ReadFile(filepath.Join(DeployTo, "env.list"))
+		for _, line := range strings.Split(string(envData), "\n") {
+			line = strings.TrimSpace(line)
+			if line == "" || strings.HasPrefix(line, "#") {
+				continue
+			}
+			registerCmd.Env = append(registerCmd.Env, line)
+		}
+		registerCmd.Env = append(registerCmd.Env, os.Environ()...)
+		regLog, _ := os.Create(filepath.Join(DeployTo, "register.log"))
+		if regLog != nil {
+			registerCmd.Stdout = regLog
+			registerCmd.Stderr = regLog
+		}
+		regErr := registerCmd.Run()
+		if regLog != nil {
+			regLog.Close()
+		}
+		if regErr != nil {
+			data, _ := os.ReadFile(filepath.Join(DeployTo, "register.log"))
+			return fmt.Errorf("register: %w\n%s", regErr, string(data))
+		}
 	}
 
 	// 7. Stop our temporary NGINX, start Wallarm via supervisord