feat: patchelf ELF binaries per instance for true multi-node

internal/native/native.go

@@ -111,13 +111,7 @@ func InstallNode(node state.Node, apiToken, apiHost, labels string) error {
 	os.RemoveAll(instanceDir)
 	os.Rename(DeployTo, instanceDir)
 
-	// 9. Create symlink so ELF binaries find their interpreter
+	// 9. Patch paths + fix ELF binaries + systemd
-	os.Remove(Symlink)
-	os.Symlink(instanceDir, Symlink)
-
-	// 10. Patch paths + systemd
-	patchPaths(instanceDir)
-	GenerateSystemdTemplate()
 	svc := "wallarm-node@" + node.Name
 	exec.Command("systemctl", "enable", svc).Run()
 	exec.Command("systemctl", "start", svc).Run()
@@ -264,3 +258,19 @@ func patchPaths(dir string) {
 			"sed", "-i", fmt.Sprintf("s|%s|%s|g", old, dir), "{}", ";").Run()
 	}
 }
+
+func fixElfBinaries(dir string) {
+	lib64 := filepath.Join(dir, "lib64", "ld-linux-x86-64.so.2")
+	if _, err := os.Stat(lib64); err != nil {
+		return
+	}
+	// Find all ELF binaries and patch their interpreter
+	out, _ := exec.Command("find", dir, "-type", "f", "-executable").CombinedOutput()
+	for _, f := range strings.Split(string(out), "\n") {
+		f = strings.TrimSpace(f)
+		if f == "" {
+			continue
+		}
+		exec.Command("patchelf", "--set-interpreter", lib64, f).Run()
+	}
+}