Add network interface configuration variables to config files

etc/kayobe/controllers.yml

@@ -6,6 +6,15 @@
 # to setup the Kayobe user account.
 #controller_bootstrap_user:
 
+###############################################################################
+# Network interface attachments.
+
+# List of default networks to which controller nodes are attached.
+#controller_default_network_interfaces:
+
+# List of extra networks to which controller nodes are attached.
+#controller_extra_network_interfaces:
+
 ###############################################################################
 # Dummy variable to allow Ansible to accept this file.
 workaround_ansible_issue_8743: yes

etc/kayobe/seed.yml

@@ -1,6 +1,15 @@
 ---
 # Seed node configuration.
 
+###############################################################################
+# Network interface attachments.
+
+# List of default networks to which seed nodes are attached.
+#seed_default_network_interfaces:
+
+# List of extra networks to which seed nodes are attached.
+#seed_extra_network_interfaces:
+
 ###############################################################################
 # LVM configuration.