In reply to @blaggacao:matrix.org

Hi Zhaofeng Li !

I beleive colmena eval was only ever made to be impure (so the --impure option might be a mistake), see builtins.currentSystem in:

    introspect = f:
      f {
        lib = nixpkgs.lib // builtins;
        pkgs = nixpkgs.legacyPackages.${builtins.currentSystem};
        nodes = l.mapAttrs (evalNode {_module.check = false;}) comb;
      };

Ah, it's in your make-honey.nix, missed it. But the options should be passed correctly and there is no --impure:

$ colmena eval -E '{...}: builtins.currentSystem'
warning: Git tree '/home/zhaofeng/Git/fleet' is dirty
[INFO ] Using flake: git+file:///home/zhaofeng/Git/fleet?dir=nix
error: attribute 'currentSystem' missing

Zhaofeng Li: re https://github.com/NixOS/nix/pull/6530#issuecomment-1288195277

I wonder if there is a possibility to leverage the nix bundler interface instead of making a synthetic wrapper-flake...

But I haven't really dug deep on this, just planning to do this for styx...

In reply to @v:meowy.tech
sent an image.

In reply to @zhaofeng:zhaofeng.li
There isn't a username in ssh-ng://your_ip, did you set deployment.targetUser to null? If so, then the default user it connects as (same as your username if you didn't configure anything) isn't trusted by the Nix daemon

In reply to @rendakuenthusiast:imperishable.name
once I've transitioned a nixos server onto colmena, what's the correct thing to do with the existing /etc/nixos/configuration.nix file?

It can be something like

(pkgs.writeShellScriptBin "nixos-rebuild" ''
  >&2 echo "This machine is managed by Colmena."
  exit 1
'')

(you may need to tweak its meta.priority otherwise it can conflict with the original one)

rendakuenthusiast: I have the following in a module imported by every host in the hive:

    environment.etc."nixos/configuration.nix".text = ''
      throw '''
        This machine is not managed by nixos-rebuild, but by colmena.
      '''
    '';