Add port mappings for postgresql

Able to add init scripts fro postgresql

database/migrations/2023_08_08_114038_add_port_mappings_to_standalone_postgresqls.php

@@ -0,0 +1,21 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration {
+    public function up(): void
+    {
+        Schema::table('standalone_postgresqls', function (Blueprint $table) {
+            $table->text('ports_mappings')->nullable();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('standalone_postgresqls', function (Blueprint $table) {
+            $table->dropColumn('ports_mappings');
+        });
+    }
+};