raise soft limit of N(ofile) so we can use > 1024 fds

needed for example for wendelin.core arrays + connections

@alain.takoudjou , @rafael  if no objections can you please accept & merge it?

/reviewed-on nexedi/slapos.core!36

slapos/grid/templates/supervisord.conf.in

@@ -14,6 +14,9 @@ logfile_maxbytes = %(supervisord_logfile_maxbytes)s
 nodaemon = %(supervisord_nodaemon)s
 pidfile = %(supervisord_pidfile)s
 logfile-backups = %(supervisord_logfile_backups)s
+#raise soft limit of N(ofile) so we can use > 1024 fds
+#needed for example for wendelin.core arrays + connections
+minfds=65536
 
 [unix_http_server]
 file=%(supervisord_socket)s