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 [ "$SYMFONY_ENV" = 'prod' ]; then
+		composer install --prefer-dist --no-dev --no-progress --no-suggest --optimize-autoloader --classmap-authoritative --no-interaction
+	else
+		composer install --prefer-dist --no-progress --no-suggest --no-interaction
+	fi
+
+	# Permissions hack because setfacl does not work on Mac and Windows
+	chown -R www-data var
+fi
+
+exec docker-php-entrypoint "$@"