[Nix-dev] nixops: Deploying from macOS

[Wout Mertens]

The problem is probably ssh-ing into the VM it should be using for
building. This probably fails due to not having the correct environment,
and then it silently decides building on OSX.

On Fri, May 26, 2017, 12:39 PM Kirill Elagin <kirelagin at gmail.com> wrote:

> Hi,
>
> I have finally switched my laptop to using nix-daemon and got bitten by
> https://github.com/NixOS/nixops/issues/260 (and/or
> https://github.com/NixOS/nixops/issues/483).
>
> To be honest, I am completely lost. Could someone please explain to me
> what is going on here?
>
> 1. The error that I get is this one:
>
> > error: a ‘x86_64-linux’ is required to build
> ‘/nix/store/cm2y0hlgv6dpcyzf022ih1b0qwh3x5n7-etc-logind.conf.drv’, but I am
> a ‘x86_64-darwin’
>
> Why on Earth is Linux needed to build _config files_? Building configs is
> mostly echoing, right? Who exactly tells nix that `environment.etc` files
> require a certain platform to be built? Maybe we could fix that?
>
> 2. How is this all related to nix-daemon? `nixops/deployment.py` checks
> for `os.environ.get('NIX_REMOTE') != 'daemon'`, why does it do this? Is
> that because `NIX_BUILD_HOOK` does not work when using nix-daemon? What’s
> that whole story with `NIX_REMOTE_SYSTEMS` and ssh keys really about? Why
> are there no issues with ssh keys when we I do not use nix-daemon? Why
> copying something manually helps?
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