[SR-Users] Kamailio Asterisk integration with docker DNS Problem

[Federico Santulli]

The easiest solution is to add in the kamailio machine /etc/hosts file the ip addresses associated to asterisk and asterisk2 hosts.

Hope to have helped.

Kind regards

Federico Santulli

NHM s.r.l.
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E-Mail federico.santulli at nhm.it
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> Il giorno 14 lug 2019, alle ore 10:33, Amir <gheshlaghy at gmail.com> ha scritto:
> 
> I do not have a DNS server, Docker User-defined networks has it's own built in DNS server,
> The problem is when I stop a container its DNS record would be deleted and therefore kamailio server could not check server health.
> I think if I could tell kamailio server that IF you did not find a DNS record it means that a server is down my solution would work.
> 
>> On Sat, Jul 13, 2019 at 10:56 PM Mojtaba <mespio at gmail.com> wrote:
>> Hello,
>> Did you add SRV record for each server in your DNS server?
>> 
>> On Sat, Jul 13, 2019 at 6:07 PM Fred Posner <fred at palner.com> wrote:
>> >
>> > The error indicates kamailio can not resolve the location of asterisk2. Try checking the dns (can you resolve it on the kamailio box?) or using the IP.
>> >
>> > -- Fred
>> >
>> >
>> > On Jul 13, 2019, at 07:09, Amir <gheshlaghy at gmail.com> wrote:
>> >
>> > Hi
>> > I have created a kamailio container with docker and two asterisk container
>> > And this is my dispatcher list:
>> > 1 sip:asterisk:5060
>> > 1 sip:asterisk2:5060
>> > and this is my both asterisk SIP.conf
>> > [Kamailio]
>> > host=kamailio
>> > port=5060
>> > insecure=invite
>> > type=friend
>> > context=from-internal
>> >
>> > The problem is that I use User-defined networks which has its own DNS
>> > when a container starts a dns record would be set
>> > If I start a kamailio first then start two asterisks the asterisk works fine
>> > because the name "kamailio" has been set in docker dns
>> > but I should restart the kamailio because at startup It could not resolve astersik dns records
>> > after the everything works fine but if the any of the asterisk instances crash/stop kamailio
>> > can not detect that because a dns record would not be available:
>> >
>> > 17(22) ERROR: <core> [core/resolve.c:1684]: sip_hostport2su(): could not resolve hostname: "asterisk2"
>> > 17(22) ERROR: tm [ut.h:309]: uri2dst2(): failed to resolve "asterisk2"
>> > 17(22) ERROR: tm [uac.c:452]: t_uac_prepare(): no socket found
>> > 17(22) ERROR: dispatcher [dispatch.c:3110]: ds_ping_set(): unable to ping [sip:asterisk2:5060]
>> >
>> >
>> > It is kind of loop , I think maybe I can fix asterisk problem with asterisk realtime and
>> > set the sip.conf in database.
>> > anyone has any suggestion for this problem?
>> >
>> > _______________________________________________
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>> > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>> >
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>> 
>> 
>> 
>> -- 
>> --Mojtaba Esfandiari.S
>> 
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