Description of problem:
appliance_console does support external_auth configuration only with IPA. It would be easier for user to configure ext_auth if it is enhanced to support configuring/unconfiguring ext_auth with LDAP, SAML, AD.

Version-Release number of selected component (if applicable):
5.7.0.9-beta2.1.20161101182054_eb0afaa

How reproducible:
always.

Steps to Reproduce:
1. ssh to appliance and launch 'appliance_console '
2. check for the option to "Configure External Authentication (httpd)" 
3. Check that it asks the specifications only related to IPA, as mentioned below:

"Configure External Authentication (httpd)

IPA Server Parameters:

Enter the IPA Server Hostname:"


Expected results:
 It would be easier for user to configure ext_auth if it is enhanced to support ext_auth with LDAP, SAML, AD.

Additional Info:
external_authentication other than IPA is now needs to be configured manually by updating apache configuration, sssd files etc..
http://file.rdu.redhat.com/abellott/manageiq_docs/master/auth/ldap.html