Add nova-scheduler worker support

Rocky added nova-scheduler worker support so we need to be able to
configure (and tune it) as necessary.

Change-Id: Idd702e01b67a2f25eb621d1251e8457ea376f51b
Closes-Bug: #1796933

puppet/services/nova-scheduler.yaml

@@ -65,6 +65,13 @@ parameters:
       attempt to discover new hosts that have been added to cells.
       The default value of -1 disables the periodic task completely.
       It is recommended to set this parameter for deployments using Ironic.
+  NovaSchedulerWorkers:
+    default: 0
+    description: Number of workers for Nova Scheduler services.
+    type: number
+
+conditions:
+  nova_scheduler_workers_zero: {equals : [{get_param: NovaSchedulerWorkers}, 0]}
 
 resources:
   NovaBase:
@@ -91,6 +98,12 @@ outputs:
             nova::scheduler::filter::scheduler_default_filters: {get_param: NovaSchedulerDefaultFilters}
             nova::scheduler::filter::scheduler_max_attempts: {get_param: NovaSchedulerMaxAttempts}
             nova::scheduler::discover_hosts_in_cells_interval: {get_param: NovaSchedulerDiscoverHostsInCellsInterval}
+          -
+            if:
+            - nova_scheduler_workers_zero
+            - {}
+            - nova::scheduler::workers: {get_param: NovaSchedulerWorkers}
+
       service_config_settings:
         fluentd:
           tripleo_fluentd_groups_nova_scheduler:

releasenotes/notes/add-nova-scheduler-worker-support-0ab66160b936a0c0.yaml

@@ -0,0 +1,4 @@
+---
+fixes:
+  - Nova Scheduler added worker support in Rocky. Added `NovaSchedulerWorkers`
+    to allow it to be configurable.