2017-11-21 15:04 GMT+00:00 Jeremy Stanley <fu...@yuggoth.org>:
> On 2017-11-21 09:28:20 +0100 (+0100), Thomas Goirand wrote:
> [...]
>> The only way that I see going forward, is having internet access
>> removed from unit tests in the gate, or probably just the above
>> variables set.
> [...]
...
> Removing network access from the machines running these jobs won't
> work, of course, because our job scheduling and execution service
> needs to reach them over the Internet to start jobs, monitor
> progress and collect results.
I have tested a variant that would accomodate this: Run the tests in a
new network namespace that no network configuration at all. There are
some issues with this still:
- One needs sudo access in order to run something similar to "ip netns
exec ns1 tox ...". This could still be set up in a way such that the
tox user/environment itself does not need sudo.
- I found some unit tests that do need to talk to localhost, so one
still has to setup lo with 127.0.0.1/32.
- Most important issue that prevents me from successfully running tox
currently though is that even if I prepared the venv beforehand with
"tox -epy27 --notest", the next tox run will still want to reinstall
the project itself and most projects have something like
install_command =
pip install -U
-c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt}
{opts} {packages}
in their tox.ini, which will obviously fail without network
connectivity. Running something like
sudo ip netns exec ns1 su -c ".tox/py27/bin/stestr run" $USER
does work rather well though. Does anyone have an idea how to force
tox to just run the tests without doing any installation steps? Then I
guess one could come up with a small wrapper to handle the other
steps.
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