Upgrade the Docker setup and dependencies

docker/app/docker-entrypoint.sh

@@ -0,0 +1,24 @@
+#!/bin/sh
+set -e
+
+# first arg is `-f` or `--some-option`
+if [ "${1#-}" != "$1" ]; then
+	set -- php-fpm "$@"
+fi
+
+if [ "$1" = 'php-fpm' ] || [ "$1" = 'bin/console' ]; then
+	# Detect the host IP
+	export DOCKER_BRIDGE_IP
+	DOCKER_BRIDGE_IP=$(ip ro | grep default | cut -d' ' -f 3)
+
+	if [ "$SYMFONY_ENV" = 'prod' ]; then
+		composer install --prefer-dist --no-dev --no-progress --no-suggest --optimize-autoloader --classmap-authoritative --no-interaction
+	else
+		composer install --prefer-dist --no-progress --no-suggest --no-interaction
+	fi
+
+	# Permissions hack because setfacl does not work on Mac and Windows
+	chown -R www-data var
+fi
+
+exec docker-php-entrypoint "$@"

docker/app/install-composer.sh

@@ -0,0 +1,21 @@
+#!/bin/sh
+
+# Copyright (c) Nils Adermann, Jordi Boggiano
+# Origin: https://github.com/composer/composer/blob/master/doc/faqs/how-to-install-composer-programmatically.md
+# Licence: MIT
+
+EXPECTED_SIGNATURE=$(wget -q -O - https://composer.github.io/installer.sig)
+php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
+ACTUAL_SIGNATURE=$(php -r "echo hash_file('SHA384', 'composer-setup.php');")
+
+if [ "$EXPECTED_SIGNATURE" != "$ACTUAL_SIGNATURE" ]
+then
+    >&2 echo 'ERROR: Invalid installer signature'
+    rm composer-setup.php
+    exit 1
+fi
+
+php composer-setup.php --quiet
+RESULT=$?
+rm composer-setup.php
+exit $RESULT

docker/app/php.ini

@@ -0,0 +1,9 @@
+apc.enable_cli = 1
+date.timezone = UTC
+session.auto_start = Off
+short_open_tag = Off
+
+# http://symfony.com/doc/current/performance.html
+opcache.max_accelerated_files = 20000
+realpath_cache_size = 4096K
+realpath_cache_ttl = 600