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nixfiles/flake/nixosConfigurations.nix

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{ self
, nixpkgs
, ...
}@inputs:
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let
generateNixosSystem = {
name,
system ? "x86_64-linux",
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group ? null,
modules ? [],
}: let
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localNixpkgs = nixpkgs.lib.attrByPath [ "nixpkgs-${name}" ] nixpkgs inputs;
in localNixpkgs.lib.nixosSystem {
system = system;
modules = modules ++ [
self.nixosModules.nixfilesInputs
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self.nixosModules.clerie
({ config, lib, ... }: {
# Set hostname
networking.hostName = lib.mkDefault name;
# Apply overlays
nixpkgs.overlays = [
self.overlays.nixfilesInputs
self.overlays.clerie
];
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/*
Make the contents of the flake availiable to modules.
Useful for having the monitoring server scraping the
target config from all other servers automatically.
*/
_module.args = {
inputs = inputs;
_nixfiles = self;
};
# Expose host group to monitoring
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clerie.monitoring = nixpkgs.lib.attrsets.optionalAttrs (group != null) { serviceLevel = group; };
# Automatically load secrets from sops file for host
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sops.defaultSopsFile = ../hosts + "/${name}/secrets.json";
sops.secrets = let
secretFile = config.sops.defaultSopsFile;
secretNames = builtins.filter (name: name != "sops") (builtins.attrNames (builtins.fromJSON (builtins.readFile secretFile)));
secrets = if builtins.pathExists secretFile then
lib.listToAttrs (builtins.map (name: lib.nameValuePair name {}) secretNames)
else
{};
in
secrets;
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})
# Config to be applied to every host
../configuration/common
../users/clerie
# Host specific config
(../hosts + "/${name}/configuration.nix")
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];
};
mapToNixosConfigurations = hosts: builtins.mapAttrs (name: host: generateNixosSystem ({ inherit name; } // host)) hosts;
in
mapToNixosConfigurations self.clerie.hosts