Allow configuration of variables not currently supported

README.md

@@ -75,6 +75,13 @@ Slow query log settings. Note that the log file will be created by this role, bu
 
 The rest of the settings in `defaults/main.yml` control MySQL's memory usage. The default values are tuned for a server where MySQL can consume ~512 MB RAM, so you should consider adjusting them to suit your particular server better.
 
+    mysqld_performance_settings: 
+     - { name: key_buffer_size, value: "256M" }
+    mysql_dump_settings: []
+     - { name: mysqldump_max_allowed_packet, value: "64M" }
+
+Any additional performance settings you would like to add beyond the defaults.
+
     mysql_server_id: "1"
     mysql_max_binlog_size: "100M"
     mysql_expire_logs_days: "10"

defaults/main.yml

@@ -28,6 +28,8 @@ mysql_bind_address: '0.0.0.0'
 mysql_datadir: /var/lib/mysql
 mysql_pid_file: /var/run/mysqld/mysqld.pid
 
+mysqld_performance_settings: []
+
 # Slow query log settings.
 mysql_slow_query_log_enabled: no
 mysql_slow_query_log_file: /var/log/mysql-slow.log
@@ -65,6 +67,8 @@ mysql_innodb_lock_wait_timeout: 50
 # mysqldump settings.
 mysql_mysqldump_max_allowed_packet: "64M"
 
+mysql_dump_settings: []
+
 # Logging settings.
 mysql_log: ""
 mysql_log_error: /var/log/mysql.err

templates/my.cnf.j2

@@ -90,9 +90,16 @@ innodb_log_buffer_size = {{ mysql_innodb_log_buffer_size }}
 innodb_flush_log_at_trx_commit = {{ mysql_innodb_flush_log_at_trx_commit }}
 innodb_lock_wait_timeout = {{ mysql_innodb_lock_wait_timeout }}
 
+{% for setting in mysqld_performance_settings %}
+{{ setting.name }} = {{ setting.value }}
+{% endfor %}
+
 [mysqldump]
 quick
 max_allowed_packet = {{ mysql_mysqldump_max_allowed_packet }}
+{% for setting in mysql_dump_settings %}
+{{ setting.name }} = {{ setting.value }}
+{% endfor %}
 
 [mysqld_safe]
 pid-file = {{ mysql_pid_file }}