B2B-1785: Cannot enable remote storage with install command when modules are not enabled

Author: danmooney2

app/code/Magento/RemoteStorage/Setup/ConfigOptionsList.php

@@ -141,6 +141,13 @@ public function createConfig(array $options, DeploymentConfig $deploymentConfig)
      */
     public function validate(array $options, DeploymentConfig $deploymentConfig): array
     {
+        // deployment configuration existence determines readiness of object manager to resolve remote storage drivers
+        $isDeploymentConfigExists = (bool) $deploymentConfig->getConfigData();
+
+        if (!$isDeploymentConfigExists) {
+            return [];
+        }
+
         $driver = $options[self::OPTION_REMOTE_STORAGE_DRIVER] ?? DriverPool::FILE;
 
         if ($driver === DriverPool::FILE) {

setup/src/Magento/Setup/Model/Installer.php

@@ -55,6 +55,7 @@
 use Magento\Setup\Module\SetupFactory;
 use Magento\Setup\Validator\DbValidator;
 use Magento\Store\Model\Store;
+use Magento\RemoteStorage\Setup\ConfigOptionsList as FileStorageValidator;
 
 /**
  * Class Installer contains the logic to install Magento application.
@@ -356,6 +357,7 @@ public function install($request)
         }
         $script[] = ['Installing database schema:', 'installSchema', [$request]];
         $script[] = ['Installing search configuration...', 'installSearchConfiguration', [$request]];
+        $script[] = ['Validating file storage configuration...', 'validateFileStorageConfiguration', [$request]];
         $script[] = ['Installing user configuration...', 'installUserConfig', [$request]];
         $script[] = ['Enabling caches:', 'updateCaches', [true]];
         $script[] = ['Installing data...', 'installDataFixtures', [$request]];
@@ -1197,6 +1199,25 @@ public function installSearchConfiguration($data)
         $searchConfig->saveConfiguration($data);
     }
 
+    /**
+     * Validate file storage on install.  Since it is a deployment-based configuration, the config is already present,
+     * but this function confirms it can connect (in the case of Remote Storage) after Object Manager
+     * has all necessary dependencies loaded to do so.
+     *
+     * @param array $data
+     * @throws ValidationException
+     * @throws Exception
+     */
+    public function validateFileStorageConfiguration(array $data)
+    {
+        $fileStorageValidator = $this->objectManagerProvider->get()->get(FileStorageValidator::class);
+        $validationErrors = $fileStorageValidator->validate($data, $this->deploymentConfig);
+
+        if (!empty($validationErrors)) {
+            throw new ValidationException(__(implode(PHP_EOL, $validationErrors)));
+        }
+    }
+
     /**
      * Create data handler
      *