Hello, just to add another common method, you could also just use a cfg file variable that you can modify later with kamcmd, kamcli etc.. There is a prepared variable (pstn..) in the default cfg.
Cheers, Henning -- Henning Westerholt - https://skalatan.de/blog/ Kamailio services - https://gilawa.com > -----Original Message----- > From: Daniel-Constantin Mierla via sr-users <sr-users@lists.kamailio.org> > Sent: Montag, 13. November 2023 11:46 > To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org> > Cc: Daniel-Constantin Mierla <mico...@gmail.com> > Subject: [SR-Users] Re: How to check for presence of a file from a route? (Or > any other way to tell kamailio not to accept new calls) > > On 13.11.23 11:17, Benoit Panizzon via sr-users wrote: > > Hi > > > > I'm still looking for a better way to tell Kamailio that we want to > > enter 'maintenance' and STAY in maintenance after a restart. > > > > Maintenance is: Reject all messages without totag with 503 to prevent > > creating new dialogues. > > > > I could use a shared pv and the use kamcmd pv.shvSet to toggle it. > > > > But when kamailio is restarted, that pv is also reset to it's initial > > state. Not good, if I want to make sure the node stays in maintenance > > mode after a restart as for example after pushing a config change via > > ansible. > > > > So what comes to my mind is to check for the presence of a file. > > > > something like: > > > > route[CHECK_MAINTENANCE] > > { > > if (!has_totag() && is_method("INVITE")) { > > if (file_exist("/etc/kamailio/maintenance.flag")) { > > xlog("L_ERR", "Maintenance flag present! Rejecting > INVITE\n"); > > t_send_reply("503", "Maintenance mode - no new > calls accepted"); > > exit; > > } > > } > > } > > I would really avoid checking/reading a file for every new sip call, > especially on > production system with decent volume of calls. But if suits your needs and > system, look at corex module, there is a function to read the content of a > file. > > I would rather find a solution where the state is kept in memory, like still > using > $shv(...) and change kamailio.cfg to init in maintenance mode via pv > parameter which can set $shv(...) at startup, or using htable with database > backend that loads at startup. > > Cheers, > Daniel > > -- > Daniel-Constantin Mierla (@ asipto.com) > twitter.com/miconda -- linkedin.com/in/miconda Kamailio Consultancy and > Development Services > > __________________________________________________________ > Kamailio - Users Mailing List - Non Commercial Discussions To unsubscribe > send an email to sr-users-le...@lists.kamailio.org > Important: keep the mailing list in the recipients, do not reply only to the > sender! > Edit mailing list options or unsubscribe: __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions To unsubscribe send an email to sr-users-le...@lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe:
