erp5.mariadb: Set server-id in configuration.

This allows enabling replication later without requiring a mariadb restart.
For now, nothing passes the internal server-id instance parameter, so
replication is not.

stack/erp5/buildout.cfg

@@ -156,7 +156,7 @@ mode = 755
 [template-mariadb]
 <= download-base
 filename = instance-mariadb.cfg.in
-md5sum = fbc39d333bf70894f6f9d094515a2a4a
+md5sum = ede2481d6ce60a335bde920d8cec5318
 link-binary =
   ${coreutils:location}/bin/basename
   ${coreutils:location}/bin/cat
@@ -192,7 +192,7 @@ md5sum = bc6048b85b410693e60e5a77399dd1b7
 [template-my-cnf]
 <= download-base
 filename = my.cnf.in
-md5sum = 9ae79a450f9760072ccbc8c9b2d0c377
+md5sum = ac5c87991d95907f62bf2129ecfd42c4
 
 [template-mariadb-initial-setup]
 <= download-base

stack/erp5/instance-mariadb.cfg.in

@@ -114,6 +114,7 @@ relaxed-writes = {{ dumps(slapparameter_dict.get('relaxed-writes', False)) }}
 binlog-path = ${directory:mariadb-backup-incremental}/binlog
 # XXX: binlog rotation happens along with other log's rotation
 binlog-expire-days = {{ dumps(incremental_backup_retention_days) }}
+server-id = {{ dumps(slapparameter_dict.get('server-id', 1)) }}
 {% else %}
 binlog-path =
 {%- endif %}

stack/erp5/my.cnf.in

@@ -51,6 +51,7 @@ innodb_locks_unsafe_for_binlog = 1
 log_bin = {{ log_bin }}
 {% set binlog_expire_days = parameter_dict['binlog-expire-days'] -%}
 {% if binlog_expire_days > 0 %}expire_logs_days = {{ binlog_expire_days }}{% endif %}
+server_id = {{ parameter_dict['server-id'] }}
 {% endif %}
 
 # Some dangerous settings you may want to uncomment temporarily