Enable redis caching

nextcloud/Dockerfile

@@ -4,7 +4,7 @@ RUN set -ex; \
     \
     apk add --no-cache \
         ffmpeg \
-        imagemagick \
+        #imagemagick \
         procps \
         supervisor \
     ;

nextcloud/config/config.php

@@ -149,6 +149,8 @@ $CONFIG = [
  * * Use Redis or Memcached for distributed environments.
  *   For the local cache (you can configure two) take APCu.
  */
+'memcache.distributed' => '\OC\Memcache\Redis',
+'memcache.locking' => '\OC\Memcache\Redis',
 
 /**
  * Connection details for redis to use for memory caching in a single server configuration.