Enable neutron vpnaas dashboard dynamically

neutron-vpnaas-dashboard is split into standalone repo. Need enable it
dynamic.

Depends-On: Ife1e39d4fff9e878a101ff716545166a30091f69
Change-Id: Ia3faa5b52f9321349e57902b5b1d90068d388cc0
Closes-Bug: #1777750

ansible/group_vars/all.yml

@@ -445,6 +445,7 @@ enable_horizon_manila: "{{ enable_manila | bool }}"
 enable_horizon_mistral: "{{ enable_mistral | bool }}"
 enable_horizon_murano: "{{ enable_murano | bool }}"
 enable_horizon_neutron_lbaas: "{{ enable_neutron_lbaas | bool }}"
+enable_horizon_neutron_vpnaas: "{{ enable_neutron_vpnaas | bool }}"
 enable_horizon_octavia: "{{ enable_octavia | bool }}"
 enable_horizon_sahara: "{{ enable_sahara | bool }}"
 enable_horizon_searchlight: "{{ enable_searchlight | bool }}"

ansible/roles/horizon/defaults/main.yml

@@ -22,6 +22,7 @@ horizon_services:
       ENABLE_MISTRAL: "{{ 'yes' if enable_horizon_mistral | bool else 'no' }}"
       ENABLE_MURANO: "{{ 'yes' if  enable_horizon_murano | bool else 'no' }}"
       ENABLE_NEUTRON_LBAAS: "{{ 'yes' if enable_horizon_neutron_lbaas | bool else 'no' }}"
+      ENABLE_NEUTRON_VPNAAS: "{{ 'yes' if enable_horizon_neutron_vpnaas | bool else 'no' }}"
       ENABLE_OCTAVIA: "{{ 'yes' if enable_horizon_octavia | bool else 'no' }}"
       ENABLE_SAHARA: "{{ 'yes' if enable_horizon_sahara | bool else 'no' }}"
       ENABLE_SEARCHLIGHT: "{{ 'yes' if enable_horizon_searchlight | bool else 'no' }}"