Init the ddns service, create app, aws and ip modules

nest-cli.json

@@ -0,0 +1,9 @@
+{
+  "$schema": "https://json.schemastore.org/nest-cli",
+  "collection": "@nestjs/schematics",
+  "sourceRoot": "src",
+  "compilerOptions": {
+    "deleteOutDir": true,
+    "typeCheck": true
+  }
+}