[SR-Users] systemd kamailio.service - RFC Wants=network-online.target

[Sergey Safarov]

For RPM based dist i will update unit file except
Conflicts=iptables.service firewalld.service

Kamailio is working fine with iptables and firewalld. Need only create
appropriate rules.
For firewalld you can create this rules and then create PR



вт, 6 нояб. 2018 г. в 15:12, Kevin Olbrich <ko at sv01.de>:

>
> Also you may want change
>> Restart=on-failure
>>
>
> Absolutely agree with this. Should I create a PR on GH for all three
> changes?
> Any concerns?
>
> Kind regards
> Kevin
>
>
>> вт, 6 нояб. 2018 г. в 14:54, Kevin Olbrich <ko at sv01.de>:
>>
>>> Hi!
>>>
>>> The systemd kamailio.service file for debian (in my case, it's stretch)
>>> has the following unit options set:
>>>
>>> [Unit]
>>>> Description=Kamailio (OpenSER) - the Open Source SIP Server
>>>> After=network.target
>>>
>>>
>>> It would be better to change this to:
>>>
>>> [Unit]
>>>> Description=Kamailio (OpenSER) - the Open Source SIP Server
>>>> Wants=network-online.target
>>>> After=network-online.target
>>>
>>>
>>> Why? With network.target the service starts as soon as the network setup
>>> is started, not explicitly after configuring (=IP) it [1].
>>> This creates a race condition on very fast hardware like mine (booting
>>> incl. all services takes 10s).
>>>
>>> Even with static IPs, kamailio often fails directly at boot because eth1
>>> (connection to DB cluster) is not up.
>>> [I have never met this problem on systems which ran on HDDs.]
>>>
>>> Setting "network-online.target" as Wants + After makes sure, Kamailio is
>>> started after all interfaces are ready to serve.
>>>
>>> Units that strictly require a configured network connection should pull
>>>> in network-online.target (via a Wants= type dependency) and order
>>>> themselves after it. This target unit is intended to pull in a service that
>>>> delays further execution until the network is sufficiently set up. What
>>>> precisely this requires is left to the implementation of the network
>>>> managing service.
>>>
>>>
>>> Perfect example for this is the Shorewall package (firewall solution):
>>>
>>> [Unit]
>>>> Description=Shorewall IPv4 firewall
>>>> Wants=network-online.target
>>>> After=network-online.target
>>>> Conflicts=iptables.service firewalld.service
>>>
>>>
>>> RFC
>>>
>>> Kind regards
>>> Kevin
>>>
>>> [1]
>>> https://www.freedesktop.org/software/systemd/man/systemd.special.html
>>> _______________________________________________
>>> Kamailio (SER) - Users Mailing List
>>> sr-users at lists.kamailio.org
>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>>>
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