add install symfony on docker

Dockerfile

@@ -11,11 +11,15 @@ RUN mkdir -p $COMPOSER_HOME && chmod -R 777 $COMPOSER_HOME && curl -sS https://g
 
 # Install NPM
 RUN curl -sL https://deb.nodesource.com/setup_10.x | bash
-RUN apt-get update && apt-get install -y nodejs
+RUN apt-get update && apt-get install -y nodejs wget git
 
 # Install Sass
 RUN npm install -g sass
 
+# Install symfon
+RUN wget https://get.symfony.com/cli/installer -O - | bash &&\
+ export PATH="$HOME/.symfony/bin:$PATH"
+
 RUN mkdir /srv/app
 COPY vhost.conf /etc/apache2/sites-available/000-default.conf