added git to requirements

Dockerfile

@@ -18,7 +18,10 @@ RUN useradd -m -u 1000 -g deploy deploy
 
 # install required packages
 RUN apt-get install -y apache2 apache2-utils libapache2-mod-svn subversion
-RUN apt-get install -y python3 python3-pip
+# added more packages to separate install 
+# since apache2 currently has a dependency problem and 
+# cached docker image can be reused
+RUN apt-get install -y git python3 python3-pip
 
 # copy the script to run httpd in foreground
 COPY httpd-foreground /usr/local/bin/