[WIP] build docker images with tag

tools/Dockerfile

@@ -9,7 +9,7 @@ EXPOSE 8000
 # RUN apt-get update && apt-get install -yq python python-pip git vim tmux zip build-essential php7.1 iptables xz-utils php7.1-mbstring php7.1-gmp
 # mysql-client php7.1 php7.1-mysql php7.1-curl php7.1-xml php7.1-zip php7.1-bcmath php7.1-mbstring php7.1-dom php7.1-amqp php7.1-soap php7.1-snmp
 
-RUN apt-get update && apt-get install -yq python-pip iptables xz-utils
+RUN apt-get update && apt-get install -yq software-properties-common python-pip iptables xz-utils
 
 ## install composer
 ADD composer.sh /opt/composer.sh