[ovirt-users] How to notify cluster nodes after "engine-config --set IPTablesConfigSiteCustom..." ?

[Yedidyah Bar David]

On Wed, Nov 23, 2016 at 1:54 PM,  <aleksey.maksimov at it-kb.ru> wrote:
> "As I wrote there, you can also do this manually"
>
> How?

I am not sure I understand the question.

The same way you configure iptables on non-oVirt-hosts machines.

If you mean "How to imitate the way the engine does this during
host deploy", then I don't know - you can check engine sources
for that. I am guessing that you can get the values of IPTablesConfig
and IPTablesConfigSiteCustom with engine-config, replace inside the
latter "@CUSTOM_RULES@" with the contents of the former, then copy
the result to the host and load it with iptables-restore (and/or
copy to /etc/sysconfig/iptables and restart iptables service).

>
> 23.11.2016, 14:23, "Yedidyah Bar David" <didi at redhat.com>:
>> On Wed, Nov 23, 2016 at 12:51 PM, <aleksey.maksimov at it-kb.ru> wrote:
>>>  Hi Didi!
>>>
>>>  https://www.mail-archive.com/users@ovirt.org/msg37193.html
>>>
>>>  "Move to maintenance and reinstall" to add the iptables rules ?
>>>
>>>  Are you serious?
>>>
>>>  There is no other way (without reinstalling the hosts) ?
>>
>> AFAIK, using ovirt-host-deploy, no.
>>
>> I am not aware of an engine API or vdsm verb to do this, but these are
>> not my main area of expertise.
>>
>> As I wrote there, you can also do this manually.
>>
>> The oVirt engine is not a replacement for configuration management
>> systems. If you have complex needs, might as well uncheck this
>> checkbox and use other means.
>>
>> Best,
>>
>>>  23.11.2016, 13:07, "Yedidyah Bar David" <didi at redhat.com>:
>>>>  On Wed, Nov 23, 2016 at 12:02 PM, <aleksey.maksimov at it-kb.ru> wrote:
>>>>>   Hmm. I just rebooted the host, but the iptables rules have not been updated :(
>>>>>
>>>>>   On Engine server my custom iptables rules are visible:
>>>>>
>>>>>   # engine-config --get IPTablesConfigSiteCustom
>>>>>
>>>>>   IPTablesConfigSiteCustom:
>>>>>   -A INPUT -p tcp --dport 2301 -j ACCEPT -m comment --comment 'HPE System Management Homepage'
>>>>>   -A INPUT -p tcp --dport 2381 -j ACCEPT -m comment --comment 'HPE System Management Homepage (Secure port)'
>>>>>    version: general
>>>>>
>>>>>   How to update the configuration on the hosts ?
>>>>>
>>>>>   23.11.2016, 11:30, "aleksey.maksimov at it-kb.ru" <aleksey.maksimov at it-kb.ru>:
>>>>>>   Hello oVirt guru`s !
>>>>>>
>>>>>>   oVirt Engine Version: 4.0.5.5-1.el7.centos
>>>>>>
>>>>>>   I updated the configuration of the firewall on the Engine server with "engine-config --set IPTablesConfigSiteCustom...".
>>>>>>   How to notify cluster nodes (all virtualization hosts) about the changes without reboot?
>>>>
>>>>  Please check the other thread here "[ovirt-users] Hook to add firewall
>>>>  rules". Thanks.
>>>>
>>>>>   _______________________________________________
>>>>>   Users mailing list
>>>>>   Users at ovirt.org
>>>>>   http://lists.ovirt.org/mailman/listinfo/users
>>>>
>>>>  --
>>>>  Didi
>>
>> --
>> Didi



-- 
Didi