NixOS - flake input for setting up services.teslamate?

[shaunsmiley-xevo]

I've used the docker compose for some time via https://github.com/aksiksi/compose2nix. I just discovered there has been a nix folder here the whole time!

However, I don't see a flake.nix nor any instructions on a recommended way of consuming this as a module on a standard NixOS setup using flakes.

NB: I did see #4503, but that didn't seem to give the info I seek.

[brianmay]

This does need to be better documented. Am assuming this is a nixos flake that uses nixosSystem to build a complete system.

In the inputs section of the flake add:

teslamate.url = "github:teslamate-org/teslamate/main";

Or if you want the mcu2 branch:

teslamate.url = "github:teslamate-org/teslamate/mcu2-upgraded-cars";

Add the teslamate to the args of the outputs function. Or just use inputs to cover all args (what I am currently doing).

outputs =
    inputs:
    [...]

In the call to nixosSystem call add specialArgs:

    nixosConfigurations.iot2 = inputs.nixpkgs-stable.lib.nixosSystem {
        system = "x86_64-linux";
        modules = [ ... ];
        specialArgs = {
            inherit (inputs) teslamate;
        };
      };

(your flake probably won't look exactly like this)

Then update the module as per my other post:

{
  config,
  teslamate,
  ...
}: {
  age.secrets.teslamate = {file = ../secrets/teslamate.age;};

  imports = [teslamate.nixosModules.default];

  services.teslamate = {
    enable = true;
    secretsFile = config.age.secrets.teslamate.path;
    listenAddress = "127.0.0.1";
    port = 4001;
    virtualHost = "[censored]";
    postgres = {
      user = "teslamate";
      database = "teslamate";
      host = "localhost";
    };
    mqtt = {
      enable = true;
      host = "[censored]";
      port = 8883;
    };
    grafana = {
      enable = true;
      listenAddress = "127.0.0.1";
      port = 3000;
    };
  };
}