added install of python3

Dockerfile

@@ -20,7 +20,11 @@ RUN useradd -m -u 1000 -g deploy deploy
 RUN apt-get install -y libssh-4
 
 # install required packages
-RUN apt-get install -y apache2 apache2-utils libapache2-mod-svn subversion python3
+RUN apt-get install -y apache2 
+RUN apt-get install -y apache2-utils 
+RUN apt-get install -y libapache2-mod-svn 
+RUN apt-get install -y subversion 
+RUN apt-get install -y python3
 
 # copy the script to run httpd in foreground
 COPY httpd-foreground /usr/local/bin/