// hosts.toml
[kluster]
master = "il"

[hosts.il]
disk_uuid = "01b3bcba-c0ef-4538-8dd2-f7dee2952322"
host = "192.168.10.121"

[hosts.ee]
disk_uuid = "7278ee48-598d-40fd-9765-a0b0db9ba1d9"
host = "192.168.10.122"

[hosts.sam]
disk_uuid = "f433b748-e485-4668-a7fd-fc5d92fbd682"
host = "192.168.10.123"

// default.nix
let
        pkgs = import <nixpkgs> {};

        metadata = builtins.fromTOML (builtins.readFile ./hosts.toml);

        master_ip = metadata.hosts."${metadata.kluster.master}".host;
        master_hostname = metadata.kluster.master;
        master_api = "https://${master_hostname}:443";

        kubernetes_master = hostname: {
                roles = ["master" "node"];
                masterAddress = master_hostname;
                easyCerts = true;
                apiserver = {
                        securePort = 443;
                        advertiseAddress = master_ip;
                };

                addons.dns.enable = true;
                addons.dashboard.enable = true;
        };

        kubernetes_node = hostname: {
                roles = ["node"];
                masterAddress = master_hostname;
                easyCerts = true;

                kubelet.kubeconfig.server = master_api;
                apiserverAddress = master_api;

                addons.dns.enable = true;
        };

        node = { hostname, ... }: {

                imports = [
                        ./base.nix
                ];

                networking.hostName = hostname;
                networking.extraHosts = "${master_ip} ${master_hostname}";

                deployment.targetHost = metadata.hosts."${hostname}".host;
                deployment.targetEnv = "none";

                fileSystems."/" = {
                        fsType = "ext4";
                        device = metadata.hosts."${hostname}".disk_uuid;
                };

                # environment.systemPackages = with pkgs; [
                #       kubernetes
                #       kubectl
                # ];

                # services.kubernetes = if metadata.kluster.master == hostname
                #       then kubernetes_master hostname
                #       else kubernetes_node hostname;
        };

in

{
        network = {
                description = "kubernetes cluster";
                enableRollback = true;
        };

        il = node { hostname = "il"; };

        ee = node { hostname = "ee"; };

        sam = node { hostname = "sam"; };
}