Add support to configure Num of Storage sacks

Gnocchi 4 supports storage sacks during upgrade. lets make this
configurable if we want to use more metricd workers.

Change-Id: Ibb2ee885e59d43c1ae20887ec1026786d58c6b9e

puppet/services/gnocchi-base.yaml

@@ -34,6 +34,10 @@ parameters:
     default: 30
     description: Delay between processing metrics.
     type: number
+  NumberOfStorageSacks:
+    default: 128
+    description: Number of storage sacks to create.
+    type: number
   GnocchiPassword:
     description: The password for the gnocchi service and db account.
     type: string
@@ -87,7 +91,11 @@ outputs:
             query:
               read_default_file: /etc/my.cnf.d/tripleo.cnf
               read_default_group: tripleo
-        gnocchi::db::sync::extra_opts: ''
+        gnocchi::db::sync::extra_opts:
+          str_replace:
+            template: " --sacks-number NUM_SACKS"
+            params:
+              NUM_SACKS: {get_param: NumberOfStorageSacks}
         gnocchi::storage::metric_processing_delay: {get_param: MetricProcessingDelay}
         gnocchi::storage::swift::swift_user: 'service:gnocchi'
         gnocchi::storage::swift::swift_auth_version: 3

releasenotes/notes/num-storage-sacks-f640be5fcd374a6b.yaml

@@ -0,0 +1,3 @@
+---
+features:
+  - Add support to configure number of sacks in gnocchi.