Expose Innodb_buffer_pool_size

This can now be set via 'MySQLInnodbBufferPoolSize'.

Change-Id: I59e74a76d8467bd49c95da5031a23cda0cc6f52d

deployment/database/mysql-base.yaml

@@ -62,6 +62,11 @@ parameters:
     default: false
     description: Enable IPv6 in MySQL
     type: boolean
+  MySQLInnodbBufferPoolSize:
+    type: string
+    description: Buffer pool size for MySQL database; this needs to be larger
+                 for at-scale deployments
+    default: ''
 
 parameter_groups:
 - label: deprecated
@@ -80,6 +85,7 @@ conditions:
     equals:
       - {get_param: [ServiceData, net_ip_version_map, {get_param: [ServiceNetMap, MysqlNetwork]}]}
       - 6
+  innodb_buffer_pool_size: {not: {equals: [{get_param: MySQLInnodbBufferPoolSize}, '']}}
 
 outputs:
   role_data:
@@ -162,6 +168,11 @@ outputs:
                     params:
                       NETWORK: {get_param: [ServiceNetMap, MysqlNetwork]}
             - {}
+          -
+            if:
+            - innodb_buffer_pool_size
+            - innodb_buffer_pool_size: {get_param: MySQLInnodbBufferPoolSize}
+            - {}
       step_config: |
         include tripleo::profile::base::database::mysql
       metadata_settings:

releasenotes/notes/innodb-tuning-param-e71d2fd727c450ec.yaml

@@ -0,0 +1,6 @@
+---
+features:
+  - |
+    The MariaDB tuning parameter for Innodb_buffer_pool_size can now be set via
+    a new TripleO Heat Template parameter 'MySQLInnodbBufferPoolSize'.
+    By default this is undefined.