[Nix-dev] using qemu virtual machine for testing software

[Domen Kožar]

I don't have a plan to contribute upstream, because I never had enough time
to make it robust.

As you mentioned, there would need to be logic to use different tap
interface
for each VM set. I think it would be easier to add tap0 only if
exposeNetwork was set to true somewhere
and it would default to false.

Feel free to contribute that :)

On Thu, Aug 11, 2016 at 12:43 PM, Tomasz Czyż <tomasz.czyz at gmail.com> wrote:

> Doman, thank you very much, it's very useful.
>
> Do you plan to add this patch to repo? (and create separate tap for every
> vm in test network? (same as ip addresses are generated in test networks)?
>
> 2016-08-11 10:54 GMT+01:00 Domen Kožar <domen at dev.si>:
>
>> See https://github.com/NixOS/nixpkgs/issues/5241#issuecomment-172811419
>>
>> On Thu, Aug 11, 2016 at 9:01 AM, Alexey Lebedeff <binarin at gmail.com>
>> wrote:
>>
>>> Hi,
>>>
>>> I'm not sure that it is the same problem, but have you tried setting
>>>
>>> networking.firewall.checkReversePath = false;
>>>
>>> as described in https://github.com/NixOS/nixpkgs/issues/10101 ?
>>>
>>> Best,
>>> Alexey
>>>
>>>
>>> On Thu, Aug 11, 2016 at 1:14 AM, Tomasz Czyż <tomasz.czyz at gmail.com>
>>> wrote:
>>>
>>>> Hi Tomas,
>>>>
>>>> yeah, I've been there :-)
>>>> I have a problem with TCP connection not with starting the machine.
>>>>
>>>> Basically, if you use VirtualBox it giving you kind of local networking
>>>> for free, same as docker default setup. I was wondering if it's possible to
>>>> have the same with qemu without setting up the bridge, ips etc by my own,
>>>> but after some digging I don't think it's possible.
>>>>
>>>> I end up with port forwarding from qemu to localhost by adding params
>>>> to qemu in nix machine expression.
>>>>
>>>> 2016-08-10 10:33 GMT+01:00 Tomas Hlavaty <tomas.hlavaty at knowledgetools.
>>>> de>:
>>>>
>>>>> Hi Tomasz,
>>>>>
>>>>> Tomasz Czyż <tomasz.czyz at gmail.com> writes:
>>>>> > I made this working/building the vm, but I still don't know how to
>>>>> > connect to it. Any idea?
>>>>>
>>>>> when you build the VM, it will create a symlink called something like
>>>>> result.  Inside there is a program to launch the VM inside qemu.  You
>>>>> can simply run that command and it will open a window with the qemu VM.
>>>>>
>>>>> Tomas
>>>>> _______________________________________________
>>>>> nix-dev mailing list
>>>>> nix-dev at lists.science.uu.nl
>>>>> http://lists.science.uu.nl/mailman/listinfo/nix-dev
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Tomasz Czyż
>>>>
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>>>> nix-dev at lists.science.uu.nl
>>>> http://lists.science.uu.nl/mailman/listinfo/nix-dev
>>>>
>>>>
>>>
>>> _______________________________________________
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>>>
>>>
>>
>
>
> --
> Tomasz Czyż
>
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