Set Tempest's service_availability setting for Heat

Tempest's service_availability config option includes all the service
availability which is further used by tests to take decision of skip
or run the test.

For example, [service_availability].heat is true then, heat test will run
or if [service_availability].heat is false then, all the heat related tests either
in heat tempest plugin or any other plugins will be skipped.

Currently this setting for heat service[1] is in devstack lib/tempest
which is being removed by - https://review.openstack.org/#/c/619973/

For better maintenance, we are moving all tempest non-owned service setting
to service devstack plugin side.

This commit add the setting of heat service on ceilometer devstack plugin.

Related-Bug: #1743688
[1] d6b253502a/heat_tempest_plugin/config.py (L15)

Depends-On: https://review.openstack.org/#/c/619990/
Change-Id: I5013ce8be1a4fb5219ea89a63add812558191025
Needed-By: https://review.openstack.org/#/c/619973/

devstack/lib/heat

@@ -442,6 +442,15 @@ function create_heat_accounts {
     fi
 }
 
+# configure_tempest_for_heat()
+# NOTE (gmann): Configure all the Tempest setting for Heat service in
+# this function.
+function configure_tempest_for_heat {
+    if is_service_enabled tempest; then
+        iniset $TEMPEST_CONFIG service_available heat True
+    fi
+}
+
 # Restore xtrace
 $_XTRACE_HEAT
 

devstack/plugin.sh

@@ -35,6 +35,10 @@ if is_heat_enabled; then
         # Start the heat API and heat taskmgr components
         echo_summary "Starting heat"
         start_heat
+
+    elif [[ "$1" == "stack" && "$2" == "test-config" ]]; then
+        echo_summary "Configuring Tempest for Heat"
+        configure_tempest_for_heat
     fi
 
     if [[ "$1" == "unstack" ]]; then