Enable standalone Octavia for testing

neutron-lbass project is deprecated as of the Queens. And will go away
in T or U release. (https://wiki.openstack.org/wiki/Neutron/LBaaS/Deprecation)

Adding new scenario "octaviav2" to test standalone Octavia deployment
without neutron integration.

Change-Id: I941a47d0a963d42150c56676c5a60a1accf64bc4

tests/roles/bootstrap-host/templates/user_variables.aio.yml.j2

@@ -222,8 +222,17 @@ openstack_user_kernel_options:
   - key: 'kernel.printk'
     value: '4 1 7 4'
 
-{% if 'octavia' in bootstrap_host_services %}
-# Octavia specific stuff
+{% if 'octaviav2' in bootstrap_host_scenario %}
+# Disable Octavia support in Neutron
+neutron_lbaas_octavia: False
+# Disable LBaaS V2
+neutron_lbaasv2: False
+# Enable Octavia V2 API/standalone
+octavia_v2: True
+# Disable Octavia V1 API
+octavia_v1: False
+octavia_management_net_subnet_cidr: "{{ (bootstrap_host_container_tech == 'nspawn') | ternary('172.29.240.0/22', '172.29.252.0/22') }}"
+{% elif 'octavia' in bootstrap_host_services %}
 neutron_lbaas_octavia: True
 octavia_management_net_subnet_cidr: "{{ (bootstrap_host_container_tech == 'nspawn') | ternary('172.29.240.0/22', '172.29.252.0/22') }}"
 {% endif %}

tests/roles/bootstrap-host/vars/main.yml

@@ -19,6 +19,7 @@ bootstrap_host_special_word_list:
  - lxc
  - metal
  - nspawn
+ - octaviav2
  - proxy
  - source
  - telemetry
@@ -40,6 +41,9 @@ bootstrap_host_services: >-
   {%- if 'ironic' in scenario_list %}
   {%-   set _ = service_list.extend(['swift']) %}
   {%- endif %}
+  {%- if 'octaviav2' in scenario_list %}
+  {%-   set _ = service_list.extend(['octavia']) %}
+  {%- endif %}
   {%- if 'telemetry' in scenario_list %}
   {%-   set _ = service_list.extend(['aodh', 'ceilometer', 'gnocchi', 'panko']) %}
   {%- endif %}