depot/modules/hyprspace/default.nix

76 lines
2.5 KiB
Nix

{ pkgs, inputs, lib, hosts, config, ... }:
let
inherit (config.networking) hostName;
inherit (inputs.self.packages.${pkgs.system}) hyprspace;
hyprspaceCapableNodes = lib.filterAttrs (_: host: host ? hypr) hosts;
peersFormatted = builtins.mapAttrs (_: x: { "${x.hypr.addr}".id = x.hypr.id; }) hyprspaceCapableNodes;
peersFiltered = lib.filterAttrs (name: _: name != hostName) peersFormatted;
peerList = lib.foldAttrs (n: _: n) null (builtins.attrValues peersFiltered);
myNode = hosts.${hostName};
listenPort = myNode.hypr.listenPort or 8001;
routes' = map (x: lib.genAttrs (x.hypr.routes or []) (_: { ip = x.hypr.addr; })) (builtins.attrValues hyprspaceCapableNodes);
routes = builtins.foldl' (x: y: x // y) {} (lib.flatten routes');
interfaceConfig = pkgs.writeText "hyprspace.yml" (builtins.toJSON {
interface = {
name = "hyprspace";
listen_port = listenPort;
inherit (myNode.hypr) id;
address = "${myNode.hypr.addr}/24";
private_key = "@HYPRSPACEPRIVATEKEY@";
};
peers = peerList;
inherit routes;
});
privateKeyFile = config.age.secrets.hyprspace-key.path;
runConfig = "/run/hyprspace.yml";
in {
networking.hosts = lib.mapAttrs' (k: v: lib.nameValuePair v.hypr.addr [k "${k}.hypr"]) hyprspaceCapableNodes;
age.secrets.hyprspace-key = {
file = ../../secrets/hyprspace-key- + "${hostName}.age";
mode = "0400";
};
systemd.services.hyprspace = {
enable = true;
after = [ "network-online.target" ];
wantedBy = [ "multi-user.target" ];
preStart = ''
test -e ${runConfig} && rm ${runConfig}
cp ${interfaceConfig} ${runConfig}
chmod 0600 ${runConfig}
${pkgs.replace-secret}/bin/replace-secret '@HYPRSPACEPRIVATEKEY@' "${privateKeyFile}" ${runConfig}
chmod 0400 ${runConfig}
'';
serviceConfig = {
Restart = "on-failure";
RestartSec = "5s";
ExecStart = "${hyprspace}/bin/hyprspace up hyprspace -f -c ${runConfig}";
ExecStop = "${hyprspace}/bin/hyprspace down hyprspace";
IPAddressDeny = [
"10.0.0.0/8"
"100.64.0.0/10"
"169.254.0.0/16"
"172.16.0.0/12"
"192.0.0.0/24"
"192.0.2.0/24"
"192.168.0.0/16"
"198.18.0.0/15"
"198.51.100.0/24"
"203.0.113.0/24"
"240.0.0.0/4"
"100::/64"
"2001:2::/48"
"2001:db8::/32"
"fc00::/7"
"fe80::/10"
];
};
};
networking.firewall = {
allowedTCPPorts = [ listenPort ];
allowedUDPPorts = [ listenPort ];
trustedInterfaces = [ "hyprspace" ];
};
}