replace redis with apcu

docker-compose.yml.dist

@@ -21,11 +21,6 @@ services:
         networks:
             - internal
 
-    redis:
-        image: redis
-        networks:
-            - internal
-
 networks:
     web:
         external:

webservice/Dockerfile

@@ -58,14 +58,13 @@ RUN \
         curl \
         bz2 \
         intl \
-        opcache \
-        mcrypt && \
+        opcache && \
     CFLAGS="-I/usr/src/php" docker-php-ext-install xmlreader
 
 RUN \
-    pecl install -o -f redis imagick-beta && \
+    pecl install -o -f apcu imagick-beta && \
     rm -rf /tmp/pear && \
-    docker-php-ext-enable redis imagick
+    docker-php-ext-enable apcu imagick
 
 # Activate user-defined .htaccess
 RUN \