[one-users] one and hooks for networks on hardware nodes

[Thomas Stein]

Am 18.12.14 09:57, schrieb Ruben S. Montero:
> This could be done with a oned VM hook as they could be executed in the
> target host.
> 
> However, I think it should be better to extend one of the existing network
> drivers. There you can tune the pre (before booting the VM) post
> (after booting the VM) and clean (after deleteing the VM from the host).

Sounds reasonable. I will look into it. Thanks.

cheers
t.

> Those are also used in migrations and stop/resume, attach/detach NICs....
> More information [1]. As I said you probably can hook on one of the
> existing drivers and add your code afterwards...
> 
> About the VM name, it MUST be one-<ID>, that cannot be changed. There are
> other drivers that may relay on that naming convention. Also one-<ID> is
> unique across your cloud.
> 
> Cheers
> 
> Ruben
> 
> 
> [1]
> http://docs.opennebula.org/4.10/integration/infrastructure_integration/devel-nm.html
> 
> 
> 
> 
> 
> On Thu Dec 18 2014 at 9:25:37 AM Thomas Stein <himbeere at meine-oma.de> wrote:
> 
>> Hello.
>>
>> Usually i configure my networks for virtual machines with hook files
>> located in /etc/libvirt/hooks. For example this one:
>>
>> #!/bin/bash
>>
>> guest_name=some_name
>> guest_ipaddr=123.123.123.123
>> if [ "${1}" = "${guest_name}" ]; then
>>    if [ "${2}" = "stopped" -o "${2}" = "reconnect" ]; then
>>                 ip route del 123.123.123.123 via 192.0.0.1 dev virbr1
>>                 ip neigh del proxy 123.123.123.123 dev eth0
>>                 sleep ${RANDOM:0:1}.${RANDOM:-1:1}
>>                 iptables -D FORWARD -i eth0 -o virbr1 -s 0.0.0.0/0 -d
>> 123.123.123.123/32 -j ACCEPT
>>                 iptables -D FORWARD -i virbr1 -o eth0 -s
>> 123.123.123.123/32 -d 0.0.0.0/0 -j ACCEPT
>>    fi
>>    if [ "${2}" = "start" -o "${2}" = "reconnect" ]; then
>>                 ip route add 123.123.123.123 via 192.0.0.1 dev virbr1
>>                 ip neigh add proxy 123.123.123.123 dev eth0
>>                 sleep ${RANDOM:0:1}.${RANDOM:-1:1}
>>                 iptables -I FORWARD 4 -i eth0 -o virbr1 -s 0.0.0.0/0 -d
>> 123.123.123.123/32 -j ACCEPT
>>                 iptables -I FORWARD 4 -i virbr1 -o eth0 -s
>> 123.123.123.123/32 -d 0.0.0.0/0 -j ACCEPT
>>    fi
>> fi
>>
>> How would i accomplish this whit opennebula hooks? Can i even set the
>> $guest_name? It's always like one-$number i guess. Okay, there is for
>> sure another way of setting this up. Is there?
>>
>> thanks and best regards
>> t.
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>