Clen YUM cache before running the ansible call back

templates/firstboot.sh.j2

@@ -27,9 +27,9 @@ do
         sleep 2
 done
 
-
 yum makecache 2>&1 >> $LOGFILE
 yum install -y python2-ansible-tower-cli 2>&1  >> $LOGFILE
+yum clean all 2>&1 >> $LOGFILE
 
 wget -O ~/.tower_cli.cfg {{ kickstart_url }}/tower_cli.cfg 2>&1 >> $LOGFILE
 chmod 600 ~/.tower_cli.cfg 2>&1 >> $LOGFILE