diff --git a/environments/predictable-placement/custom-domain.yaml b/environments/predictable-placement/custom-domain.yaml
new file mode 100644
index 0000000000..aacb677a11
--- /dev/null
+++ b/environments/predictable-placement/custom-domain.yaml
@@ -0,0 +1,35 @@
+# *******************************************************************
+# This file was created automatically by the sample environment
+# generator. Developers should use `tox -e genconfig` to update it.
+# Users are recommended to make changes to a copy of the file instead
+# of the original, if any customizations are needed.
+# *******************************************************************
+# title: Custom Domain Name
+# description: |
+#   This environment contains the parameters that need to be set in order to
+#   use a custom domain name and have all of the various FQDNs reflect it.
+parameter_defaults:
+  # The DNS domain used for the hosts. This must match the overcloud_domain_name configured on the undercloud.
+  # Type: string
+  CloudDomain: localdomain
+
+  # The DNS name of this cloud. E.g. ci-overcloud.tripleo.org
+  # Type: string
+  CloudName: overcloud.localdomain
+
+  # The DNS name of this cloud's provisioning network endpoint. E.g. 'ci-overcloud.ctlplane.tripleo.org'.
+  # Type: string
+  CloudNameCtlplane: overcloud.ctlplane.localdomain
+
+  # The DNS name of this cloud's internal API endpoint. E.g. 'ci-overcloud.internalapi.tripleo.org'.
+  # Type: string
+  CloudNameInternal: overcloud.internalapi.localdomain
+
+  # The DNS name of this cloud's storage endpoint. E.g. 'ci-overcloud.storage.tripleo.org'.
+  # Type: string
+  CloudNameStorage: overcloud.storage.localdomain
+
+  # The DNS name of this cloud's storage management endpoint. E.g. 'ci-overcloud.storagemgmt.tripleo.org'.
+  # Type: string
+  CloudNameStorageManagement: overcloud.storagemgmt.localdomain
+
diff --git a/extraconfig/nova_metadata/krb-service-principals.yaml b/extraconfig/nova_metadata/krb-service-principals.yaml
index 59b8e7f54b..cdd4341a35 100644
--- a/extraconfig/nova_metadata/krb-service-principals.yaml
+++ b/extraconfig/nova_metadata/krb-service-principals.yaml
@@ -32,8 +32,8 @@ 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
 
 resources:
diff --git a/overcloud.j2.yaml b/overcloud.j2.yaml
index ddf2701afc..6bc5db5556 100644
--- a/overcloud.j2.yaml
+++ b/overcloud.j2.yaml
@@ -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: []
diff --git a/sample-env-generator/predictable-placement.yaml b/sample-env-generator/predictable-placement.yaml
index ffda7aca0b..3a971fbd02 100644
--- a/sample-env-generator/predictable-placement.yaml
+++ b/sample-env-generator/predictable-placement.yaml
@@ -15,3 +15,18 @@ environments:
       Note %index% is translated into the index of the node, e.g 0/1/2 etc
       and %stackname% is replaced with OS::stack_name in the template below.
       If you want to use the heat generated names, pass '' (empty string).
+  -
+    name: predictable-placement/custom-domain
+    title: Custom Domain Name
+    files:
+      overcloud.yaml:
+        parameters:
+          - CloudDomain
+          - CloudName
+          - CloudNameInternal
+          - CloudNameStorage
+          - CloudNameStorageManagement
+          - CloudNameCtlplane
+    description: |
+      This environment contains the parameters that need to be set in order to
+      use a custom domain name and have all of the various FQDNs reflect it.