Just type "docker-compose up" to install a Flex project (major refactoring)

Dockerfile

@@ -15,7 +15,6 @@ RUN set -xe \
 		zlib-dev \
 	&& docker-php-ext-install \
 		intl \
-		pdo_mysql \
 		zip \
 	&& pecl install \
 		apcu-${APCU_VERSION} \
@@ -23,16 +22,17 @@ RUN set -xe \
 	&& docker-php-ext-enable --ini-name 05-opcache.ini opcache \
 	&& apk del .build-deps
 
+###> recipes ###
+###< recipes ###
+
 COPY docker/app/php.ini /usr/local/etc/php/php.ini
 
 COPY docker/app/install-composer.sh /usr/local/bin/docker-app-install-composer
 RUN chmod +x /usr/local/bin/docker-app-install-composer
 
 RUN set -xe \
-	&& apk add --no-cache --virtual .fetch-deps openssl \
 	&& docker-app-install-composer \
-	&& mv composer.phar /usr/local/bin/composer \
-	&& apk del .fetch-deps
+	&& mv composer.phar /usr/local/bin/composer
 
 # https://getcomposer.org/doc/03-cli.md#composer-allow-superuser
 ENV COMPOSER_ALLOW_SUPERUSER 1
@@ -42,24 +42,20 @@ RUN composer global require "hirak/prestissimo:^0.3" --prefer-dist --no-progress
 
 WORKDIR /srv/app
 
-COPY composer.* ./
+COPY . .
+# Cleanup unneeded files
+RUN rm -Rf docker/
 
-RUN mkdir -p \
-		var/cache \
-		var/logs \
-		var/sessions \
-	&& composer install --prefer-dist --no-dev --no-autoloader --no-scripts --no-progress --no-suggest \
+# Download the Symfony skeleton
+ENV SKELETON_COMPOSER_JSON https://raw.githubusercontent.com/symfony/skeleton/v3.3.2/composer.json
+RUN [ -f composer.json ] || php -r "copy('$SKELETON_COMPOSER_JSON', 'composer.json');"
+
+RUN mkdir -p var/cache var/logs var/sessions \
+    && composer install --prefer-dist --no-dev --no-progress --no-suggest --optimize-autoloader --classmap-authoritative --no-interaction \
 	&& composer clear-cache \
 # Permissions hack because setfacl does not work on Mac and Windows
 	&& chown -R www-data var
 
-COPY etc etc/
-COPY src src/
-COPY var var/
-COPY web web/
-
-RUN composer dump-autoload --optimize --classmap-authoritative --no-dev
-
 COPY docker/app/docker-entrypoint.sh /usr/local/bin/docker-app-entrypoint
 RUN chmod +x /usr/local/bin/docker-app-entrypoint