Match CoD auth with Cheaha environment.
Issue description: A user can still login after their account has been blocked because the cache has not been updated. This is observed on production with our account management app after we blocked or unblocked their account because of the SSSD cache config updating after ~10 min. We decided to replicate this in our CoD environment by doing the following:
- Add SSSD service in CoD
- Add LDAP authentication in CoD
- Investigate nslcd and pam-ldap.