feat: add support for PHP preloading

Dockerfile

@@ -5,7 +5,7 @@
 
 # https://docs.docker.com/engine/reference/builder/#understand-how-arg-and-from-interact
 ARG PHP_VERSION=7.4
-ARG NGINX_VERSION=1.17
+ARG NGINX_VERSION=1.19
 
 # "php" stage
 FROM php:${PHP_VERSION}-fpm-alpine AS symfony_php
@@ -20,7 +20,7 @@ RUN apk add --no-cache \
         jq \
     ;
 
-ARG APCU_VERSION=5.1.18
+ARG APCU_VERSION=5.1.19
 RUN set -eux; \
 	apk add --no-cache --virtual .build-deps \
 	    $PHPIZE_DEPS \
@@ -56,7 +56,7 @@ RUN set -eux; \
 COPY --from=composer:latest /usr/bin/composer /usr/bin/composer
 
 RUN ln -s $PHP_INI_DIR/php.ini-production $PHP_INI_DIR/php.ini
-COPY docker/php/conf.d/symfony.ini $PHP_INI_DIR/conf.d/symfony.ini
+COPY docker/php/conf.d/symfony.prod.ini $PHP_INI_DIR/conf.d/symfony.ini
 
 RUN set -eux; \
 	{ \

docker-compose.yml

@@ -17,11 +17,9 @@ services:
     volumes:
       # Comment out the next line in production
       - ./:/srv/app:rw,cached
+      - ./docker/php/conf.d/symfony.dev.ini:/usr/local/etc/php/conf.d/symfony.ini
       # If you develop on Linux, comment out the following volumes to just use bind-mounted project directory from host
-      - /srv/app/var/
+      # - ./api/var:/srv/app/var:rw
-      - /srv/app/var/cache/
-      - /srv/app/var/logs/
-      - /srv/app/var/sessions/
     environment:
       - SYMFONY_VERSION
 

docker/php/conf.d/symfony.prod.ini

@@ -0,0 +1,14 @@
+apc.enable_cli = 1
+date.timezone = UTC
+session.auto_start = Off
+short_open_tag = Off
+
+# https://symfony.com/doc/current/performance.html
+opcache.interned_strings_buffer = 16
+opcache.max_accelerated_files = 20000
+opcache.memory_consumption = 256
+opcache.validate_timestamps = 0
+realpath_cache_size = 4096K
+realpath_cache_ttl = 600
+opcache.preload_user=www-data
+opcache.preload=/srv/app/var/cache/prod/App_KernelProdContainer.preload.php