Update Dockerfile

docker/apache/Dockerfile

@@ -1,4 +1,3 @@
-
 FROM ubuntu:latest
 
 LABEL maintainer="stefan@pejcic.rs"
@@ -54,6 +53,8 @@ RUN apt-get update && \
         rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 
 
+########## PHP Composer ##########
+COPY --from=composer:latest /usr/bin/composer /usr/local/bin/composer
 
 ########## MySQL ##########
 COPY mysqld.cnf /etc/mysql/mysql.conf.d/