Issue #3276788 by Xiaohua Guan, yas: Run the operations from Cloud...

Issue #3276788 by Xiaohua Guan, yas: Run the operations from Cloud Orchestrator master to workers (Add Flavor Entity Type)

Closes #3276788

modules/cloud_service_providers/openstack/src/Controller/OpenStackFlavorAccessControlHandler.php

+<?php
+
+namespace Drupal\openstack\Controller;
+
+use Drupal\cloud\Traits\AccessCheckTrait;
+use Drupal\cloud\Traits\CloudContentEntityTrait;
+use Drupal\Core\Access\AccessResult;
+use Drupal\Core\Access\AccessResultInterface;
+use Drupal\Core\Entity\EntityAccessControlHandler;
+use Drupal\Core\Entity\EntityInterface;
+use Drupal\Core\Session\AccountInterface;
+
+/**
+ * Access controller for the Flavor entity.
+ *
+ * @see \Drupal\openstack\Entity\Entity\OpenStackFlavor.
+ */
+class OpenStackFlavorAccessControlHandler extends EntityAccessControlHandler {
+
+  use AccessCheckTrait;
+  use CloudContentEntityTrait;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function checkAccess(EntityInterface $entity, $operation, AccountInterface $account): AccessResultInterface {
+
+    // Get cloud service provider name.
+    $cloud_name = $this->getModuleNameWithWhitespace($entity);
+
+    switch ($operation) {
+      case 'view':
+        return $this->allowedIfCanAccessCloudConfigWithOwner(
+          $entity,
+          $account,
+          "view own {$cloud_name} flavor",
+          "view any {$cloud_name} flavor",
+          TRUE
+        );
+
+    }
+    // Unknown operation, no opinion.
+    return AccessResult::neutral();
+  }
+
+}