If an image is built with python3 therefore libapache2-mod-wsgi-py3
module have to be installed accordingly but the module doesn't create
/var/run/apache2 directory which is APACHE_RUN_DIR in apache configuration
file so apache can't start without it due to the fact that the directory
is used to make there pid, run, etc files.
Change-Id: Ic92b095e9d7636c3ed833241bd3badbb4bb6e552
89f5bfe3ac