my.cnf.erb

[client]
port    = <%= port %>
socket    = <%= socket %>
[mysqld_safe]
socket    = <%= socket %>
nice    = 0
<% if log_error == 'syslog' -%>
syslog
<% end -%>
[mysqld]
user    = mysql
pid-file  = <%= pidfile %>
socket    = <%= socket %>
port      = <%= port %>
basedir   = <%= basedir %>
datadir   = <%= datadir %>
tmpdir    = /tmp
skip-external-locking

<% if bind_address %>
bind-address    = <%= bind_address %>
<% end %>

key_buffer         = 16M
max_allowed_packet = 16M
thread_stack       = 192K
thread_cache_size  = 8
myisam-recover     = BACKUP
query_cache_limit  = 1M
query_cache_size   = 16M
<% if log_error != 'syslog' -%>
log_error          = <%= log_error %>
<% end -%>
expire_logs_days   = 10
max_binlog_size    = 100M
<% if default_engine != 'UNSET' %>
default-storage-engine = <%= default_engine %>
<% end %>
<% if ssl == true %>
ssl-ca    = <%= ssl_ca %>
ssl-cert  = <%= ssl_cert %>
ssl-key   = <%= ssl_key %>
<% end %>

[mysqldump]
quick
quote-names
max_allowed_packet = 16M
[mysql]
[isamchk]
key_buffer    = 16M
!includedir /etc/mysql/conf.d/