Merge "Add environment for setting a custom domain name"

diff --combined overcloud.j2.yaml
index 586c397,6bc5db5..2bfdf50
--- 1/overcloud.j2.yaml
--- 2/overcloud.j2.yaml
+++ b/overcloud.j2.yaml
@@@ -46,8 -46,8 +46,8 @@@ parameters
    CloudNameCtlplane:
      default: overcloud.ctlplane.localdomain
      description: >
-       The DNS name of this cloud's storage management endpoint. E.g.
-       'ci-overcloud.management.tripleo.org'.
+       The DNS name of this cloud's provisioning network endpoint. E.g.
+       'ci-overcloud.ctlplane.tripleo.org'.
      type: string
    ControlFixedIPs:
      default: []
@@@ -89,7 -89,7 +89,7 @@@
      description: Neutron ID or name for ctlplane network.
    NeutronPublicInterface:
      default: nic1
 -    description: What interface to bridge onto br-ex for network nodes.
 +    description: Which interface to add to the NeutronPhysicalBridge.
      type: string
    PublicVirtualFixedIPs:
      default: []