[one-users] Using White-port correctly

[Sean Abbott]

The hosts connect to each other through a backend network.  They're all
on the same switch, and they use a bridge to that backend network to
provide inter-vm connectivity.

So, in the templates below, fullbackend is connected to a bridge that
goes to a private network.  natnet0 is connected to virbr0, which does
IP masquerading out to the world via libvirt's default nat with
libvirt's default iptables rules.  As I said, all that's working fine.
So regardless of whether opennebula truly SUPPORTS it, it does work.  :-)

All I need to go is get one port to forward to one vm and my setup will
work wonderfully.

On 05/11/2012 11:01 AM, Jaime Melis wrote:
> Dear Sean,
> 
> OpenNebula does not support Libvirt's NAT-network(192.168.122.0/24).
> You have to create a network environment as described here:
> http://opennebula.org/documentation:rel3.4:plan#networking
> 
> How are your hosts connected to each other?
> 
> Regards,
> Jaime
> 
> On Fri, May 11, 2012 at 4:40 PM, Sean Abbott <seabbott at akamai.com> wrote:
>> Hello,
>>
>> I have a setup intended for selenium grid.  I'll have a bunch of
>> machines using the default NAT for internet access and a management
>> network for communication between each other.  The template for these
>> VMs is:
>>
>> NIC=[
>>  MODEL=virtio,
>>  NETWORK="natnet0",
>>  NETWORK_UNAME=oneadmin ]
>> NIC=[
>>  MODEL=virtio,
>>  NETWORK="fullbackend",
>>  NETWORK_UNAME=oneadmin ]
>>
>>
>> That's all working.  I need one VM to be able to communicate with the
>> outside world on a single port (4444).  I've set up template as follows:
>>
>> NIC=[
>>  MODEL=virtio,
>>  NETWORK="natnet0",
>>  NETWORK_UNAME=oneadmin,
>>  IP=192.168.122.100,
>>  WHITE_PORTS_TCP=4444 ]
>> NIC=[
>>  MODEL=virtio,
>>  NETWORK="fullbackend",
>>  NETWORK_UNAME=oneadmin ]
>>
>> The resulting VM can still use the internet and it can still communicate
>> with the other VMs.  I can communicate with it on port 4444 from the
>> host that it's on, but not from outside.
>>
>> Is this what WHITE_PORTS_TCP is intended for?  Am I doing something wrong?
>>
>> Thanks!
>>
>> sean
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> 
>