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infra/lib/deploy.nix

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Nix

/*
The contents of this file are adapted from digga
https://github.com/divnix/digga
Licensed under the MIT license
*/
{ lib, inputs }:
let
getFqdn =
c:
let
net = c.config.networking;
fqdn =
if (net ? domain) && (net.domain != null) then "${net.hostName}.${net.domain}" else net.hostName;
in
fqdn;
in
{
mkDeployNodes =
systemConfigurations: extraConfig:
/*
*
Synopsis: mkNodes _systemConfigurations_ _extraConfig_
Generate the `nodes` attribute expected by deploy-rs
where _systemConfigurations_ are `nodes`.
_systemConfigurations_ should take the form of a flake's
_nixosConfigurations_. Note that deploy-rs does not currently support
deploying to darwin hosts.
_extraConfig_, if specified, will be merged into each of the
nodes' configurations.
Example _systemConfigurations_ input:
```
{
hostname-1 = {
fastConnection = true;
sshOpts = [ "-p" "25" ];
};
hostname-2 = {
sshOpts = [ "-p" "19999" ];
sshUser = "root";
};
}
```
*
*/
lib.recursiveUpdate (lib.mapAttrs (_: c: {
hostname = getFqdn c;
profiles.system =
let
system = c.pkgs.system;
# Unmodified nixpkgs
pkgs = import inputs.nixpkgs { inherit system; };
# nixpkgs with deploy-rs overlay but force the nixpkgs package
deployPkgs = import inputs.nixpkgs {
inherit system;
overlays = [
inputs.deploy-rs.overlay # or deploy-rs.overlays.default
(self: super: {
deploy-rs = {
inherit (pkgs) deploy-rs;
lib = super.deploy-rs.lib;
};
})
];
};
in
{
user = "root";
path = deployPkgs.deploy-rs.lib.activate.nixos c;
};
}) systemConfigurations) extraConfig;
}