tempest_services var for setting tempest_service_available_{}

Currently os_tempest is used by multiple deployement tools
and each of them have different methods of configuring
services and currently tempest_service_available_{service_name}
are setted based on group vars and group vars is not used at
all places which leads enable user to specifically define a
list of tempest_service_available_{service_name} which is too
hectic.

By introducing tempest_services:
                 - aodh
                 - neutron
will set those vars automatically and makes it easier for
handling tempest_service_availabe vars.

Depends-On: https://review.openstack.org/#/c/649653/

Change-Id: I8734f38206b73e6547a6ec545f07f625e844ed66
Signed-off-by: Chandan Kumar <chkumar@redhat.com>

defaults/main.yml

@@ -156,6 +156,15 @@ tempest_network_ping_gateway: False
 
 tempest_dashboard_url: "https://{{ external_lb_vip_address | default('127.0.0.1') }}/"
 
+# var for setting tempest_service_available_{sevice_name} vars
+# Example:
+# tempest_services:
+#   - cinder
+#   - aodh
+# It will set tempest_service_available_aodh and
+# tempest_service_available_cinder to true.
+tempest_services: []
+
 tempest_service_available_aodh: "{{ groups['aodh_all'] is defined and groups['aodh_all'] | length > 0 }}"
 tempest_service_available_barbican: "{{ groups['barbican_all'] is defined and groups['barbican_all'] | length > 0 }}"
 tempest_service_available_ceilometer: "{{ groups['ceilometer_all'] is defined and groups['ceilometer_all'] | length > 0 }}"

releasenotes/notes/add-tempest-services-f9a37fb9671d22fb.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - Added new parameter ``tempest_services`` for setting
+    tempest_service_available_{service_name} var automatically.

tasks/main.yml

@@ -25,6 +25,12 @@
   tags:
     - always
 
+- name: Set tempest service specific variables
+  set_fact:
+    tempest_service_available_{{ item }}: true
+  with_items: "{{ tempest_services }}"
+  when: tempest_services | length > 0
+
 - name: Gather variables for installation method
   include_vars: "{{ tempest_install_method }}_install.yml"
   tags: