trying to get rid of segfault, changing to ubuntu

Dockerfile

@@ -21,12 +21,12 @@ RUN mkdir /var/lib/dav/
 #RUN chown deploy:deploy /var/lib/dav/
 
 # apache should run as user deploy
-#RUN sed -i.bak -r 's/(User|Group) apache/\1 deploy/' /etc/apache2/httpd.conf
-RUN sed -i.bak 's/#ServerName www.example.com:80/ServerName svn.cpi.imtek.uni-freiburg.de:80/' /etc/apache2/httpd.conf
-RUN sed -i.bak 's/LogLevel warn/LogLevel debug/' /etc/apache2/httpd.conf
-RUN sed -i.bak 's/Listen 80/Listen 80\nListen 8000/' /etc/apache2/httpd.conf
-#RUN sed -i.bak 's/#LoadModule deflate_module/LoadModule deflate_module/' /etc/apache2/httpd.conf
-#RUN sed -i.bak 's/#LoadModule logio_module/LoadModule logio_module/' /etc/apache2/httpd.conf
+#RUN sed -i.bak -r 's/(User|Group) apache/\1 deploy/' /etc/apache2/apache2.conf
+RUN sed -i.bak 's/#ServerName www.example.com:80/ServerName svn.cpi.imtek.uni-freiburg.de:80/' /etc/apache2/apache2.conf
+RUN sed -i.bak 's/LogLevel warn/LogLevel debug/' /etc/apache2/apache2.conf
+RUN sed -i.bak 's/Listen 80/Listen 80\nListen 8000/' /etc/apache2/apache2.conf
+#RUN sed -i.bak 's/#LoadModule deflate_module/LoadModule deflate_module/' /etc/apache2/apache2.conf
+#RUN sed -i.bak 's/#LoadModule logio_module/LoadModule logio_module/' /etc/apache2/apache2.conf
 
 # copy the script to run httpd in foreground
 COPY httpd-foreground /usr/local/bin/