diff --git a/roles/mariadb/templates/my.cnf b/roles/mariadb/templates/my.cnf
index 3267e78..036a2d6 100644
--- a/roles/mariadb/templates/my.cnf
+++ b/roles/mariadb/templates/my.cnf
@@ -1,31 +1,31 @@
 [mysqld]
 datadir=/var/lib/mysql
 socket=/var/lib/mysql/mysql.sock
 default_storage_engine=InnoDB
 bind-address=0.0.0.0
 sql_mode=STRICT_ALL_TABLES
 max_allowed_packet=48M
 symbolic-links=0
 max_connections=800
 local_infile=0
 
 ft_stopword_file=/srv/stopwords.txt
 ft_min_word_len=3
 ft_boolean_syntax=' |-><()~*:""&^'
 
 innodb_buffer_pool_size=2000M
 innodb_log_file_size=48M
 innodb_autoinc_lock_mode=2
 innodb_flush_log_at_trx_commit=0
 innodb_doublewrite=0
 
 server_id={{ ansible_hostname[-1:]|int+1 }}
 log-bin="{{ mysql_cluster_name }}"
 log_slave_updates=0
 binlog_format=MIXED
 sync_binlog=0
-expire_logs_days=7
+expire_logs_days={{ mysql_binlog_expire }}
 
 [mysqld_safe]
 log-error=/var/log/mariadb/mariadb.log
 pid-file=/var/run/mariadb/mysqld.pid
diff --git a/vars/main.yml.example b/vars/main.yml.example
index e66ae79..329af81 100644
--- a/vars/main.yml.example
+++ b/vars/main.yml.example
@@ -1,133 +1,134 @@
 ---
 env: prod
 project_name: "c4science"
 ansible_ssh_user: "centos"
 
 proxy: no
 http_proxy: ""
 https_proxy: ""
 no_proxy: "localhost"
 proxy_url: "{{ http_proxy }}"
 __no_proxy: "{{ no_proxy }}"
 
 user_pwd_root: ""
 user_pwd_centos: ""
 
 # OpenStack
 keypair_name: ""
 image_id: ""
 image_id_coreos: ""
 public_net: ""
 private_net: ""
 flavor_id_small:  ""
 flavor_id_medium: ""
 flavor_id_large:  ""
 
 flavor_id_small_backup: ""
 private_net_backup: ""
 image_id_backup: ""
 
 region_main: ""
 region_back: ""
 
 # Storage
 glusterfs_default_release: 38
 s3_access_key: ""
 s3_secret_key: ""
 s3_endpoint: ""
 s3_bucket: ""
 s3_region: ""
 
 # Lbs
 internal_ip: 0.0.0.0
 external_ip: 0.0.0.0
 backup_ip: 0.0.0.0
 ip_range: "10.0.0.0/16"
 notif_port: 22280
 jenkins_port: 8080
 stats_port: 8082
 monit_port: 8081
 monit_user: admin
 monit_pass:
 
 rolling_reboot_proxy_host: "{{ external_ip }}"
 rolling_reboot_pause: 30
 rolling_reboot_wait_delay: 20
 
 # App
 developer_mode: false
 http_scheme: 'http://'
 domain: example.com
 file_domain: "example-cdn.com"
 phabricator_branch: production
 phabricator_path: /srv/
 repositories_path: /var/repo/
 files_path: /var/files/
 phd_user: phabricator
 www_user: apache
 vcs_user: git
 vcs_port_front: 22
 vcs_port_back: 2222
 jenkins_prefix: "/"
 jenkins_url: "{{ http_scheme }}jenkins.{{ domain }}{{ jenkins_prefix }}"
 jenkins_user: "admin"
 jenkins_token: ""
 jenkins_cred: "xxx-yyy-zzz"
 shib_metadata_file: "metadata.xml"
 shib_metadata_provider: "http://example.com/{{ shib_metadata_file }}"
 google_webmaster_file: "googleXYZ.html"
 phab_admin_apikey: 'api-xyz'
 phd_pull_number: 6
 
 # Dbs
 mysql_repl_user: "repl"
 mysql_repl_pass: ""
 mysql_app_user: ""
 mysql_app_pass: ""
 mysql_shib_user: ""
 mysql_shib_pass: ""
 mysql_shib_db: "shibboleth"
 mysql_lbs_user: "haproxy"
 mysql_cluster_name: ""
 mysql_host: "10.0.0.0/255.255.0.0"
+mysql_binlog_expire: 7
 
 # SSH
 ssh_keys:
     - "ssh-rsa mysuperkey1"
     - "ssh-rsa mysuperkey2"
 
 # Swap
 swap_path: "/swapfile"
 dd_bs_size_mb: 32
 swap_count: 128
 swappiness: 10
 vfs_cache_pressure: 50
 
 # Email
 configure_postfix: true
 enable_postfix_domain_rewrite: true
 enable_postfix_relayhost: true
 postfix_relayhost: "[{{ internal_ip }}]"
 postfix_rewrite_domain: "{{ domain }}"
 email_alias_phabricator: ""
 email_alias_postmaster: ""
 email_alias_admin: ""
 email_monitoring: ""
 
 # Config files
 php_ini: '../roles/phabricator/templates/php.ini'
 php_enable: '../roles/phabricator/templates/php.sh'
 sudoers: '../roles/phabricator/templates/sudoers'
 ssh_hook: '../roles/phabricator/templates/ssh_hook.sh'
 sshd_config: '../roles/phabricator/templates/sshd_config'
 sshd_init: '../roles/phabricator/templates/sshd_init'
 phd_init: '../roles/phabricator/templates/phd_init'
 phd_pull: '../roles/phabricator/templates/pull-daemons.sh'
 aphlict_init: '../roles/phabricator/templates/aphlict_init'
 aphlict_conf: '../roles/phabricator/templates/aphlict.custom.json'
 myconfig: '../roles/phabricator/templates/myconfig.conf.php'
 cust_phab_update_repo: '../roles/phabricator/templates/phab_update_repo.sh'
 cust_repo_gc: '../roles/phabricator/templates/repo-gc.sh'
 cust_compact_storage: '../roles/phabricator/templates/compact-storage.sh'
 repo_clusterize: '../roles/phabricator/templates/clusterize.py'
 arcanist_config: '../roles/phabricator/templates/arcrc'