Critical error: impossible to do deployments on machines with multiple ENIs

[coretemp]

I think this happened during the update of security groups on a machine with multiple ENIs (https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-eni.html) attached:

<Response><Errors><Error><Code>InvalidInstanceID</Code><Message>There are multiple interfaces attached to instance 'i-<snip>'. Please specify an interface ID for the operation instead.</Message></Error></Errors>

[coretemp]

@AmineChikhaoui Would appreciate it if you could fix this one. Just pinging you, because you seem to be the most responsive. Just let me know if you consider this spam.

[AmineChikhaoui]

Hm interesting, @coretemp can you also attach the stacktrace (with nixops deploy --debug) to get an idea which exact API call is triggering this ? Thanks

[coretemp]

Sure, will do that when I see it again. I tried to look at the obvious candidates for this, but wasn't able to find a good reason for it either.

https://github.com/NixOS/nixops/issues/914 is an even more important issue for me, because it means I need to destroy a machine first before I can deploy a new one, which 1) costs money 2) is slower (and thus costs time).