Add mysql_skip_name_resolve parameter

This prevent MySQL DNS name resolution.

Default: no

defaults/main.yml

@@ -27,6 +27,7 @@ mysql_port: "3306"
 mysql_bind_address: '0.0.0.0'
 mysql_datadir: /var/lib/mysql
 mysql_pid_file: /var/run/mysqld/mysqld.pid
+mysql_skip_name_resolve: no
 
 # Slow query log settings.
 mysql_slow_query_log_enabled: no

templates/my.cnf.j2

@@ -9,6 +9,9 @@ bind-address = {{ mysql_bind_address }}
 datadir = {{ mysql_datadir }}
 socket = {{ mysql_socket }}
 pid-file = {{ mysql_pid_file }}
+{% if mysql_skip_name_resolve %}
+skip-name-resolve
+{% endif %}
 
 # Logging configuration.
 {% if mysql_log_error == 'syslog' or mysql_log == 'syslog' %}