this working but need to be improved

Vagrantfile

@@ -0,0 +1,47 @@
+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+# All Vagrant configuration is done below. The "2" in Vagrant.configure
+# configures the configuration version (we support older styles for
+# backwards compatibility). Please don't change it unless you know what
+# you're doing.
+Vagrant.configure("2") do |config|
+  # The most common configuration options are documented and commented below.
+  # For a complete reference, please see the online documentation at
+  # https://docs.vagrantup.com.
+
+  # Every Vagrant development environment requires a box. You can search for
+  # boxes at https://vagrantcloud.com/search.
+    # Configuration for gateway-vm
+    virtualMachineNames = ["gateway-vm", "inventory-vm", "billing-vm"]
+    virtualMachineIpAddresses = ["192.168.33.10", "192.168.33.11", "192.168.33.12"]
+    virtualMachineNames.each_with_index do |vmName, index|
+      config.vm.define vmName do |name|
+        name.vm.box = "ubuntu/focal64"
+        name.vm.network "private_network", ip: virtualMachineIpAddresses[index]
+        name.vm.synced_folder ".", "/vagrant", disabled: true
+
+        name.vm.provider "virtualbox" do |vb|
+        # Customize the amount of memory on the VM:
+          vb.memory = "1024"
+        end
+
+        # Provisioning the docker on the VM
+        # ths will install docker on the VM
+        # and allow you to run docker commands
+        name.vm.provision "docker"
+
+        # Provisioning the shell on the VM
+        name.vm.provision "shell", inline: <<-SHELL
+          # Run any setup or installation commands specific to the gateway-vm'
+          sudo apt-get update
+          sudo apt-get install -y curl
+          sudo apt-get install -y npm
+          sudo curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.38.0/install.sh | bash
+          . ~/.nvm/nvm.sh
+          nvm install node
+          nvm use node
+        SHELL
+      end
+    end
+end