Fixes #1605: Randomize DrupalVM IP address.

scripts/drupal-vm/config.yml

@@ -3,7 +3,7 @@ vagrant_hostname: ${project.local.hostname}
 vagrant_machine_name: ${project.machine_name}
 
 # Set the IP address so it doesn't conflict with other Drupal VM instances.
-vagrant_ip: 192.168.25.8
+vagrant_ip: ${random.ip}
 
 # Use Ubuntu 14.04 LTS to more closely match Acquia Cloud environment.
 vagrant_box: geerlingguy/ubuntu1404

src/Robo/Commands/Vm/VmCommand.php

@@ -139,7 +139,12 @@ public function config() {
       ->setVerbosityThreshold(VerbosityThresholdInterface::VERBOSITY_VERBOSE)
       ->run();
 
-    $this->getConfig()->expandFileProperties($this->projectDrupalVmConfigFile);
+    // Generate a Random IP address for the new VM.
+    $config = clone $this->getConfig();
+    $random_local_ip = "192.168." . rand(0, 255) . '.' . rand(0, 255);
+    $config->set('random.ip', $random_local_ip);
+
+    $config->expandFileProperties($this->projectDrupalVmConfigFile);
     $vm_config = Yaml::parse(file_get_contents($this->projectDrupalVmConfigFile));
     $this->validateConfig($vm_config);