speedup php container

Author: Tom Hanoldt

docker/php/Dockerfile

@@ -6,4 +6,15 @@ RUN apt-get update && apt-get install -y php5-mysqlnd \
  && docker-php-ext-install mysql \
  && docker-php-ext-enable mysql \
  && docker-php-ext-install mysqli \
- && docker-php-ext-enable mysqli
+ && docker-php-ext-enable mysqli \
+ && docker-php-ext-install opcache \
+ && docker-php-ext-enable opcache
+
+RUN { \
+ echo 'opcache.memory_consumption=128'; \
+ echo 'opcache.interned_strings_buffer=8'; \
+ echo 'opcache.max_accelerated_files=4000'; \
+ echo 'opcache.revalidate_freq=2'; \
+ echo 'opcache.fast_shutdown=1'; \
+ echo 'opcache.enable_cli=1'; \
+ } > /usr/local/etc/php/conf.d/opcache-recommended.ini