FEATURE: add config epoch to settings and redis

Author: batabana

Classes/Transfer/ContentReleaseSynchronizer.php

@@ -28,6 +28,12 @@ class ContentReleaseSynchronizer
      */
     protected $redisKeyPostfixesForEachReleaseConfiguration;
 
+    /**
+     * @Flow\InjectConfiguration("configEpoch")
+     * @var string
+     */
+    protected $configEpochSetting;
+
     /**
      * @Flow\Inject
      * @var RedisKeyService
@@ -64,6 +70,7 @@ public function syncToTarget(RedisInstanceIdentifier $targetRedisIdentifier, Con
         }
 
         $targetRedis->zAdd('contentStore:registeredReleases', 0, $contentReleaseIdentifier->getIdentifier());
+        $targetRedis->set('contentStore:configEpoch', $this->configEpochSetting);
     }
 
     /**

Configuration/Settings.yaml

@@ -120,6 +120,8 @@ Flowpack:
         transferMode: 'dump'
         isRequired: true
 
+    # can be used on the consuming site to ensure non-breaking deployments for changes in the config
+    configEpoch: v1
 
 
     resourceSync: