my.cnf

[mysql]
port                           = 3306
socket                         = /var/run/mysqld/mysqld.sock

[mysqld]
user                           = mysql
default-storage-engine         = InnoDB
bind-address                   = 0.0.0.0
port                           = 3306
socket                         = /var/run/mysqld/mysqld.sock
pid-file                       = /var/run/mysqld/mysqld.pid
key-buffer-size                = 32M
myisam-recover                 = FORCE,BACKUP
max-allowed-packet             = 16M
max-connect-errors             = 1000000
skip-name-resolve
datadir                        = /var/lib/mysql/
log-bin                        = /var/lib/mysql/mysql-bin
expire-logs-days               = 2
max_binlog_size                = 500M
sync-binlog                    = 1
log-slave-updates              = 1
relay-log                      = /var/lib/mysql/relay-bin
slave-net-timeout              = 60
sync-master-info               = 1
sync-relay-log                 = 1
sync-relay-log-info            = 1
tmp-table-size                 = 32M
max-heap-table-size            = 32M
query-cache-type               = 1
query-cache-size               = 32M
max-connections                = 1000
thread-cache-size              = 100
open-files-limit               = 65535
table-definition-cache         = 4096
table-open-cache               = 10240
innodb-flush-method            = O_DIRECT
innodb-log-files-in-group      = 2
innodb-log-file-size           = 128M
innodb-flush-log-at-trx-commit = 2
innodb-file-per-table          = 1
innodb-buffer-pool-size        = 2G
log-error                      = /var/log/mysql/error.log
log-queries-not-using-indexes  = 1
slow-query-log                 = 1
slow-query-log-file            = /var/log/mysql/slow.log

replicate-ignore-db            = mysql

; These settings are essential for $customer
optimizer_search_depth         = 6
character-set-server           = utf8

; Recommended by mysqltuner.pl
join_buffer_size               = 512K
tmp_table_size             = 64M
max_heap_table_size        = 64M
table_open_cache           = 20KB

!includedir /etc/mysql/conf.d/