Add lua deploy variables

Author: sivaram7

config/schema.yaml

@@ -466,7 +466,28 @@ variables:
                   backend: file
                 page_cache:
                   backend: file
-
+  USE_LUA:
+    description: "Enable/Disable LUA in environments starting from Magento 2.4.7"
+    type: boolean
+    stages:
+      - deploy
+    default:
+      deploy: false
+    examples:
+      - stage:
+          deploy:
+            USE_LUA: true
+  LUA_KEY:
+    description: "LUA KEY for environments starting from Magento 2.4.7"
+    type: boolean
+    stages:
+      - deploy
+    default:
+      deploy: true
+    examples:
+      - stage:
+          deploy:
+            LUA_KEY: false
   SESSION_CONFIGURATION:
     description: "Replace or modify the Magento session configuration generated during the deployment process.
       By default, ece-tools configures Magento to store Redis session data. To replace the existing configuration,

src/Config/Stage/DeployInterface.php

@@ -86,4 +86,14 @@ interface DeployInterface extends StageConfigInterface
      * The variable responsible for enabling google analytics in environments other than prod.
      */
     public const VAR_ENABLE_GOOGLE_ANALYTICS = 'ENABLE_GOOGLE_ANALYTICS';
+
+    /**
+     * The variable responsible for enabling LUA cache in environments starting from Magento 2.4.7.
+     */
+    public const VAR_USE_LUA = 'USE_LUA';
+
+    /**
+     * The variable responsible for LUA KEY in environments starting from Magento 2.4.7.
+     */
+    public const VAR_LUA_KEY = 'LUA_KEY';
 }

src/Config/Validator/Deploy/AppropriateVersion.php

@@ -81,6 +81,24 @@ public function validate(): Validator\ResultInterface
             );
         }
 
+        if (!$this->magentoVersion->satisfies('>= 2.4.7')
+            && $this->configurationChecker->isConfigured(DeployInterface::VAR_USE_LUA, true)
+        ) {
+            $errors[] = sprintf(
+                '%s is available for Magento 2.4.7 and above',
+                DeployInterface::VAR_USE_LUA
+            );
+         }
+
+         if (!$this->magentoVersion->satisfies('>= 2.4.7')
+         && $this->configurationChecker->isConfigured(DeployInterface::VAR_LUA_KEY, true)
+        ) {
+            $errors[] = sprintf(
+                '%s is available for Magento 2.4.7 and above',
+                DeployInterface::VAR_LUA_KEY
+            );
+        }
+
         if ($errors) {
             return $this->resultFactory->error(
                 'The current configuration is not compatible with this version of Magento',

src/Step/Deploy/PreDeploy/ConfigUpdate/Cache.php

@@ -16,6 +16,7 @@
 use Magento\MagentoCloud\Step\StepInterface;
 use Psr\Log\LoggerInterface;
 use Magento\MagentoCloud\Package\MagentoVersion;
+use Magento\MagentoCloud\Config\Stage\DeployInterface;
 
 /**
  * Processes cache configuration.
@@ -49,25 +50,33 @@ class Cache implements StepInterface
      */
     private $magentoVersion;
 
+    /**
+     * @var DeployInterface
+     */
+    private $stageConfig;
+
     /**
      * @param ConfigReader $configReader
      * @param ConfigWriter $configWriter
      * @param LoggerInterface $logger
      * @param CacheFactory $cacheConfig
      * @param MagentoVersion $magentoVersion
+     * @param DeployInterface $stageConfig
      */
     public function __construct(
         ConfigReader $configReader,
         ConfigWriter $configWriter,
         LoggerInterface $logger,
         CacheFactory $cacheConfig,
-        MagentoVersion $magentoVersion
+        MagentoVersion $magentoVersion,
+        DeployInterface $stageConfig
     ) {
         $this->configReader = $configReader;
         $this->configWriter = $configWriter;
         $this->logger = $logger;
         $this->cacheConfig = $cacheConfig;
         $this->magentoVersion = $magentoVersion;
+        $this->stageConfig = $stageConfig;
     }
 
     /**
@@ -79,6 +88,8 @@ public function execute()
             $config = $this->configReader->read();
             $cacheConfig = $this->cacheConfig->get();
             $graphqlConfig = $config['cache']['graphql'] ?? [];
+            $luaConfig = (boolean)$this->stageConfig->get(DeployInterface::VAR_USE_LUA);
+            $luaConfigKey = (boolean)$this->stageConfig->get(DeployInterface::VAR_LUA_KEY);
 
             if (isset($cacheConfig['frontend'])) {
                 $cacheConfig['frontend'] = array_filter($cacheConfig['frontend'], function ($cacheFrontend) {
@@ -120,6 +131,8 @@ public function execute()
                 $config['cache']['graphql'] = $graphqlConfig;
             }
 
+            $config['cache']['frontend']['default']['backend_options']['_useLua'] = $luaConfigKey;
+            $config['cache']['frontend']['default']['backend_options']['use_lua'] = $luaConfig;
             $this->configWriter->create($config);
         } catch (FileSystemException $e) {
             throw new StepException($e->getMessage(), Error::DEPLOY_ENV_PHP_IS_NOT_WRITABLE);