It seems that it is only possible to specify files in the require attribute of
a Nix module, e.g.:
{pkgs, ...}:
{
require = [ /some/nixos/module/file.nix ]; # Works fine
services.openssh.enable = true;
}
But it seems that it is impossible to specify functions or attribute sets, e.g.:
{pkgs, ...}:
{
require = [ { services.httpd.enable = true; } ]; # Triggers an error
services.openssh.enable = true;
}
I'm curious whether it is possible to also require functions or attribute sets.
The reason I'm asking this is, that I'm working on a function that generates a
network of NixOS configurations running web applications. In some cases you may
want to run a database server and web server on a single machine, in other
cases you may want to run a database and web server on separate machines.
I think using the require attribute is the best way to combine certain
properties into a single NixOS configuration.
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