You will notice that your PCS web interface is not working after your pacemaker cluster installation. Because it is not enabled by default. Here is the steps to enable it.
cd /usr/lib/pcsdvi pcsd.rb
search for "DISABLE_GUI=true"edit that line to "DISABLE_GUI=false"
service pcsd restart
Now you will be able to access the pacemaker web interface as below:
https://<yourpacemakerclusterserver>:2224