nextcloud: add variables for apc and opcache memory size

nextcloud/daily/Dockerfile

@@ -2,7 +2,9 @@ FROM alpine:3.4
 MAINTAINER Wonderfall <wonderfall@schrodinger.io>
 
 ENV UID=991 GID=991 \
-    UPLOAD_MAX_SIZE=10G
+    UPLOAD_MAX_SIZE=10G \
+    APC_SHM_SIZE=128M \
+    OPCACHE_MEM_SIZE=128
 
 RUN echo "@commuedge https://nl.alpinelinux.org/alpine/edge/community" >> /etc/apk/repositories \
  && echo "@testing https://nl.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories \

nextcloud/daily/apcu.ini

@@ -1,4 +1,4 @@
 extension=apcu.so
 apc.enabled=1
-apc.shm_size=128M
+apc.shm_size=<APC_SHM_SIZE>
 apc.ttl=7200

nextcloud/daily/opcache.ini

@@ -2,7 +2,7 @@ zend_extension=opcache.so
 opcache.enable=1
 opcache.enable_cli=1
 opcache.fast_shutdown=1
-opcache.memory_consumption=128
+opcache.memory_consumption=<OPCACHE_MEM_SIZE>
 opcache.interned_strings_buffer=16
 opcache.max_accelerated_files=5413
 opcache.revalidate_freq=60

nextcloud/daily/run.sh

@@ -4,7 +4,9 @@ if [ ! -f /config/config.php ]; then
     echo -e "<?php\n\$CONFIG = array (\n  'datadirectory' => '/data',\n);" > /config/config.php
 fi
 
-sed -i -e "s/<UPLOAD_MAX_SIZE>/$UPLOAD_MAX_SIZE/g" /etc/nginx/nginx.conf /etc/php7/php-fpm.conf
+sed -i -e "s/<UPLOAD_MAX_SIZE>/$UPLOAD_MAX_SIZE/g" /etc/nginx/nginx.conf /etc/php7/php-fpm.conf \
+       -e "s/<APC_SHM_SIZE>/$APC_SHM_SIZE/g" /etc/php7/conf.d/apcu.ini \
+       -e "s/<OPCACHE_MEM_SIZE>/$OPCACHE_MEM_SIZE/g" /etc/php7/conf.d/00_opcache.ini
 
 chown -R $UID:$GID /nextcloud /data /config /apps2 /etc/nginx /etc/php7 /var/log /var/lib/nginx /tmp /etc/s6.d
 ln -s /config/config.php /nextcloud/config/config.php