This bug is created as a clone of upstream ticket:
Having only one IPA server with CA is very dangerous because CA cannot be installed if CA certificate private keys are lost. In such case it is required to recreate all certs which is a very tedious process.
With introduction of [http://www.freeipa.org/page/V4/Server_Roles server roles] web ui will receive information of how many CA exist in a topology.
Web UI should warn admins at a server role page if there is only one replica with CA.
Created attachment 1201645 [details]
Verified on ipa-server-4.4.0-10.el7.x86_64
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.