erp5-cluster: allow to tail mariadb logs from monitor panel

stack/erp5/buildout.cfg

@@ -166,7 +166,7 @@ md5sum = 6598e036c140f65571f3f9e3faa5d008
 [template-mariadb]
 < = download-base
 filename = instance-mariadb.cfg.in
-md5sum = c7038bb76157cc256d73afb98e1634f9
+md5sum = 7e1f4bf4c8224454409289dbc92cf5e0
 link-binary =
   ${coreutils:location}/bin/basename
   ${coreutils:location}/bin/cat

stack/erp5/instance-mariadb.cfg.in

@@ -232,6 +232,9 @@ source = ${logrotate-entry-mariadb:backup}
 
 [monitor-parameters]
 port = {{ monitor_port }}
+
+[log-folder-cgi]
+log-folder = ${directory:log}
 {% endif -%}
 
 [buildout]
@@ -254,6 +257,7 @@ parts +=
   cron-entry-monitor
   cron-entry-rss
   deploy-index
+  deploy-logfile-cgi
   setup-static-files
   certificate-authority
   public-symlink