network namespaces

[Luca Dionisi]

The workaround did the job. Thanks.


On Tue, Feb 21, 2017 at 6:53 PM, Jamie Strandboge <jamie at canonical.com> wrote:
> On Tue, 2017-02-21 at 12:39 +0100, Luca Dionisi wrote:
>> Are network namespaces supported in snaps?
>>
>> In my RaspberryPi3 I have a snap which has been installed with --devmode.
>> Inside the snap I have exposed the command 'bash'. I exec that bash as
>> root. Then I try to create a network namespace. It fails.
>>
>> $ sudo myapp.bash
>> # ip netns add ns0
>> open("/proc/self/ns/net"): Permission denied
>> #
>>
>
> You are hitting this bug:
> https://bugs.launchpad.net/apparmor/+bug/1648903
>
> The workaround is to declare in your snap 'plugs: [ network-control ]' and to
> connect the interface with 'sudo snap connect myapp:network-control' even when
> using devmode. After that you should be able to use 'ip netns' within your snap.
>
> --
> Jamie Strandboge             | http://www.canonical.com
>
>
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