update

30/config/redis.config.php

@@ -0,0 +1,17 @@
+<?php
+if (getenv('REDIS_HOST')) {
+  $CONFIG = array(
+    'memcache.distributed' => '\OC\Memcache\Redis',
+    'memcache.locking' => '\OC\Memcache\Redis',
+    'redis' => array(
+      'host' => getenv('REDIS_HOST'),
+      'password' => (string) getenv('REDIS_HOST_PASSWORD'),
+    ),
+  );
+
+  if (getenv('REDIS_HOST_PORT') !== false) {
+    $CONFIG['redis']['port'] = (int) getenv('REDIS_HOST_PORT');
+  } elseif (getenv('REDIS_HOST')[0] != '/') {
+    $CONFIG['redis']['port'] = 6379;
+  }
+}