28cf78b857
It can be include an environment-variable, like
`${CREDENTIALS_DIRECTORY}/some-path`, failing validation for
`types.path`.
531 lines
20 KiB
Nix
531 lines
20 KiB
Nix
{
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config,
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lib,
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pkgs,
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...
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}:
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with lib; let
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cfg = config.services.headscale;
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dataDir = "/var/lib/headscale";
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runDir = "/run/headscale";
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settingsFormat = pkgs.formats.yaml {};
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configFile = settingsFormat.generate "headscale.yaml" cfg.settings;
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in {
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options = {
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services.headscale = {
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enable = mkEnableOption (lib.mdDoc "headscale, Open Source coordination server for Tailscale");
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package = mkOption {
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type = types.package;
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default = pkgs.headscale;
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defaultText = literalExpression "pkgs.headscale";
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description = lib.mdDoc ''
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Which headscale package to use for the running server.
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'';
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};
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user = mkOption {
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default = "headscale";
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type = types.str;
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description = lib.mdDoc ''
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User account under which headscale runs.
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::: {.note}
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If left as the default value this user will automatically be created
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on system activation, otherwise you are responsible for
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ensuring the user exists before the headscale service starts.
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:::
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'';
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};
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group = mkOption {
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default = "headscale";
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type = types.str;
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description = lib.mdDoc ''
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Group under which headscale runs.
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::: {.note}
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If left as the default value this group will automatically be created
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on system activation, otherwise you are responsible for
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ensuring the user exists before the headscale service starts.
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:::
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'';
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};
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address = mkOption {
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type = types.str;
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default = "127.0.0.1";
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description = lib.mdDoc ''
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Listening address of headscale.
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'';
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example = "0.0.0.0";
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};
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port = mkOption {
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type = types.port;
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default = 8080;
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description = lib.mdDoc ''
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Listening port of headscale.
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'';
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example = 443;
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};
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settings = mkOption {
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description = lib.mdDoc ''
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Overrides to {file}`config.yaml` as a Nix attribute set.
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Check the [example config](https://github.com/juanfont/headscale/blob/main/config-example.yaml)
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for possible options.
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'';
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type = types.submodule {
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freeformType = settingsFormat.type;
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options = {
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server_url = mkOption {
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type = types.str;
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default = "http://127.0.0.1:8080";
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description = lib.mdDoc ''
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The url clients will connect to.
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'';
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example = "https://myheadscale.example.com:443";
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};
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private_key_path = mkOption {
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type = types.path;
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default = "${dataDir}/private.key";
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description = lib.mdDoc ''
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Path to private key file, generated automatically if it does not exist.
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'';
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};
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noise.private_key_path = mkOption {
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type = types.path;
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default = "${dataDir}/noise_private.key";
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description = lib.mdDoc ''
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Path to noise private key file, generated automatically if it does not exist.
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'';
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};
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derp = {
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urls = mkOption {
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type = types.listOf types.str;
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default = ["https://controlplane.tailscale.com/derpmap/default"];
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description = lib.mdDoc ''
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List of urls containing DERP maps.
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See [How Tailscale works](https://tailscale.com/blog/how-tailscale-works/) for more information on DERP maps.
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'';
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};
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paths = mkOption {
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type = types.listOf types.path;
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default = [];
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description = lib.mdDoc ''
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List of file paths containing DERP maps.
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See [How Tailscale works](https://tailscale.com/blog/how-tailscale-works/) for more information on DERP maps.
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'';
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};
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auto_update_enable = mkOption {
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type = types.bool;
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default = true;
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description = lib.mdDoc ''
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Whether to automatically update DERP maps on a set frequency.
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'';
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example = false;
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};
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update_frequency = mkOption {
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type = types.str;
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default = "24h";
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description = lib.mdDoc ''
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Frequency to update DERP maps.
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'';
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example = "5m";
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};
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};
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ephemeral_node_inactivity_timeout = mkOption {
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type = types.str;
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default = "30m";
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description = lib.mdDoc ''
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Time before an inactive ephemeral node is deleted.
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'';
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example = "5m";
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};
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db_type = mkOption {
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type = types.enum ["sqlite3" "postgres"];
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example = "postgres";
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default = "sqlite3";
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description = lib.mdDoc "Database engine to use.";
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};
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db_host = mkOption {
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type = types.nullOr types.str;
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default = null;
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example = "127.0.0.1";
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description = lib.mdDoc "Database host address.";
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};
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db_port = mkOption {
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type = types.nullOr types.port;
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default = null;
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example = 3306;
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description = lib.mdDoc "Database host port.";
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};
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db_name = mkOption {
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type = types.nullOr types.str;
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default = null;
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example = "headscale";
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description = lib.mdDoc "Database name.";
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};
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db_user = mkOption {
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type = types.nullOr types.str;
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default = null;
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example = "headscale";
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description = lib.mdDoc "Database user.";
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};
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db_password_file = mkOption {
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type = types.nullOr types.path;
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default = null;
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example = "/run/keys/headscale-dbpassword";
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description = lib.mdDoc ''
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A file containing the password corresponding to
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{option}`database.user`.
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'';
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};
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db_path = mkOption {
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type = types.nullOr types.str;
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default = "${dataDir}/db.sqlite";
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description = lib.mdDoc "Path to the sqlite3 database file.";
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};
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log.level = mkOption {
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type = types.str;
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default = "info";
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description = lib.mdDoc ''
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headscale log level.
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'';
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example = "debug";
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};
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log.format = mkOption {
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type = types.str;
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default = "text";
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description = lib.mdDoc ''
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headscale log format.
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'';
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example = "json";
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};
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dns_config = {
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nameservers = mkOption {
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type = types.listOf types.str;
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default = ["1.1.1.1"];
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description = lib.mdDoc ''
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List of nameservers to pass to Tailscale clients.
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'';
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};
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override_local_dns = mkOption {
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type = types.bool;
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default = false;
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description = lib.mdDoc ''
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Whether to use [Override local DNS](https://tailscale.com/kb/1054/dns/).
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'';
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example = true;
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};
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domains = mkOption {
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type = types.listOf types.str;
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default = [];
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description = lib.mdDoc ''
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Search domains to inject to Tailscale clients.
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'';
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example = ["mydomain.internal"];
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};
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magic_dns = mkOption {
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type = types.bool;
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default = true;
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description = lib.mdDoc ''
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Whether to use [MagicDNS](https://tailscale.com/kb/1081/magicdns/).
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Only works if there is at least a nameserver defined.
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'';
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example = false;
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};
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base_domain = mkOption {
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type = types.str;
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default = "";
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description = lib.mdDoc ''
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Defines the base domain to create the hostnames for MagicDNS.
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{option}`baseDomain` must be a FQDNs, without the trailing dot.
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The FQDN of the hosts will be
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`hostname.namespace.base_domain` (e.g.
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`myhost.mynamespace.example.com`).
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'';
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};
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};
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oidc = {
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issuer = mkOption {
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type = types.str;
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default = "";
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description = lib.mdDoc ''
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URL to OpenID issuer.
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'';
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example = "https://openid.example.com";
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};
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client_id = mkOption {
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type = types.str;
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default = "";
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description = lib.mdDoc ''
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OpenID Connect client ID.
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'';
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};
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client_secret_path = mkOption {
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type = types.nullOr types.str;
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default = null;
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description = lib.mdDoc ''
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Path to OpenID Connect client secret file. Expands environment variables in format ''${VAR}.
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'';
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};
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scope = mkOption {
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type = types.listOf types.str;
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default = ["openid" "profile" "email"];
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description = lib.mdDoc ''
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Scopes used in the OIDC flow.
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'';
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};
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extra_params = mkOption {
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type = types.attrsOf types.str;
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default = { };
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description = lib.mdDoc ''
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Custom query parameters to send with the Authorize Endpoint request.
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'';
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example = {
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domain_hint = "example.com";
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};
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};
|
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allowed_domains = mkOption {
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type = types.listOf types.str;
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default = [ ];
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description = lib.mdDoc ''
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Allowed principal domains. if an authenticated user's domain
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is not in this list authentication request will be rejected.
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'';
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example = [ "example.com" ];
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};
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allowed_users = mkOption {
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type = types.listOf types.str;
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default = [ ];
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description = lib.mdDoc ''
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Users allowed to authenticate even if not in allowedDomains.
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'';
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example = [ "alice@example.com" ];
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};
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strip_email_domain = mkOption {
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type = types.bool;
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default = true;
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|
description = lib.mdDoc ''
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Whether the domain part of the email address should be removed when generating namespaces.
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'';
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};
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};
|
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tls_letsencrypt_hostname = mkOption {
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type = types.nullOr types.str;
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default = "";
|
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description = lib.mdDoc ''
|
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Domain name to request a TLS certificate for.
|
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'';
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};
|
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tls_letsencrypt_challenge_type = mkOption {
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type = types.enum ["TLS-ALPN-01" "HTTP-01"];
|
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default = "HTTP-01";
|
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description = lib.mdDoc ''
|
|
Type of ACME challenge to use, currently supported types:
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`HTTP-01` or `TLS-ALPN-01`.
|
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'';
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};
|
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|
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tls_letsencrypt_listen = mkOption {
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type = types.nullOr types.str;
|
|
default = ":http";
|
|
description = lib.mdDoc ''
|
|
When HTTP-01 challenge is chosen, letsencrypt must set up a
|
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verification endpoint, and it will be listening on:
|
|
`:http = port 80`.
|
|
'';
|
|
};
|
|
|
|
tls_cert_path = mkOption {
|
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type = types.nullOr types.path;
|
|
default = null;
|
|
description = lib.mdDoc ''
|
|
Path to already created certificate.
|
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'';
|
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};
|
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|
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tls_key_path = mkOption {
|
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type = types.nullOr types.path;
|
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default = null;
|
|
description = lib.mdDoc ''
|
|
Path to key for already created certificate.
|
|
'';
|
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};
|
|
|
|
acl_policy_path = mkOption {
|
|
type = types.nullOr types.path;
|
|
default = null;
|
|
description = lib.mdDoc ''
|
|
Path to a file containing ACL policies.
|
|
'';
|
|
};
|
|
};
|
|
};
|
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};
|
|
};
|
|
};
|
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|
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imports = [
|
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# TODO address + port = listen_addr
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(mkRenamedOptionModule ["services" "headscale" "serverUrl"] ["services" "headscale" "settings" "server_url"])
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(mkRenamedOptionModule ["services" "headscale" "privateKeyFile"] ["services" "headscale" "settings" "private_key_path"])
|
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(mkRenamedOptionModule ["services" "headscale" "derp" "urls"] ["services" "headscale" "settings" "derp" "urls"])
|
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(mkRenamedOptionModule ["services" "headscale" "derp" "paths"] ["services" "headscale" "settings" "derp" "paths"])
|
|
(mkRenamedOptionModule ["services" "headscale" "derp" "autoUpdate"] ["services" "headscale" "settings" "derp" "auto_update_enable"])
|
|
(mkRenamedOptionModule ["services" "headscale" "derp" "updateFrequency"] ["services" "headscale" "settings" "derp" "update_frequency"])
|
|
(mkRenamedOptionModule ["services" "headscale" "ephemeralNodeInactivityTimeout"] ["services" "headscale" "settings" "ephemeral_node_inactivity_timeout"])
|
|
(mkRenamedOptionModule ["services" "headscale" "database" "type"] ["services" "headscale" "settings" "db_type"])
|
|
(mkRenamedOptionModule ["services" "headscale" "database" "path"] ["services" "headscale" "settings" "db_path"])
|
|
(mkRenamedOptionModule ["services" "headscale" "database" "host"] ["services" "headscale" "settings" "db_host"])
|
|
(mkRenamedOptionModule ["services" "headscale" "database" "port"] ["services" "headscale" "settings" "db_port"])
|
|
(mkRenamedOptionModule ["services" "headscale" "database" "name"] ["services" "headscale" "settings" "db_name"])
|
|
(mkRenamedOptionModule ["services" "headscale" "database" "user"] ["services" "headscale" "settings" "db_user"])
|
|
(mkRenamedOptionModule ["services" "headscale" "database" "passwordFile"] ["services" "headscale" "settings" "db_password_file"])
|
|
(mkRenamedOptionModule ["services" "headscale" "logLevel"] ["services" "headscale" "settings" "log" "level"])
|
|
(mkRenamedOptionModule ["services" "headscale" "dns" "nameservers"] ["services" "headscale" "settings" "dns_config" "nameservers"])
|
|
(mkRenamedOptionModule ["services" "headscale" "dns" "domains"] ["services" "headscale" "settings" "dns_config" "domains"])
|
|
(mkRenamedOptionModule ["services" "headscale" "dns" "magicDns"] ["services" "headscale" "settings" "dns_config" "magic_dns"])
|
|
(mkRenamedOptionModule ["services" "headscale" "dns" "baseDomain"] ["services" "headscale" "settings" "dns_config" "base_domain"])
|
|
(mkRenamedOptionModule ["services" "headscale" "openIdConnect" "issuer"] ["services" "headscale" "settings" "oidc" "issuer"])
|
|
(mkRenamedOptionModule ["services" "headscale" "openIdConnect" "clientId"] ["services" "headscale" "settings" "oidc" "client_id"])
|
|
(mkRenamedOptionModule ["services" "headscale" "openIdConnect" "clientSecretFile"] ["services" "headscale" "settings" "oidc" "client_secret_path"])
|
|
(mkRenamedOptionModule ["services" "headscale" "tls" "letsencrypt" "hostname"] ["services" "headscale" "settings" "tls_letsencrypt_hostname"])
|
|
(mkRenamedOptionModule ["services" "headscale" "tls" "letsencrypt" "challengeType"] ["services" "headscale" "settings" "tls_letsencrypt_challenge_type"])
|
|
(mkRenamedOptionModule ["services" "headscale" "tls" "letsencrypt" "httpListen"] ["services" "headscale" "settings" "tls_letsencrypt_listen"])
|
|
(mkRenamedOptionModule ["services" "headscale" "tls" "certFile"] ["services" "headscale" "settings" "tls_cert_path"])
|
|
(mkRenamedOptionModule ["services" "headscale" "tls" "keyFile"] ["services" "headscale" "settings" "tls_key_path"])
|
|
(mkRenamedOptionModule ["services" "headscale" "aclPolicyFile"] ["services" "headscale" "settings" "acl_policy_path"])
|
|
|
|
(mkRemovedOptionModule ["services" "headscale" "openIdConnect" "domainMap"] ''
|
|
Headscale no longer uses domain_map. If you're using an old version of headscale you can still set this option via services.headscale.settings.oidc.domain_map.
|
|
'')
|
|
];
|
|
|
|
config = mkIf cfg.enable {
|
|
services.headscale.settings = {
|
|
listen_addr = mkDefault "${cfg.address}:${toString cfg.port}";
|
|
|
|
# Turn off update checks since the origin of our package
|
|
# is nixpkgs and not Github.
|
|
disable_check_updates = true;
|
|
|
|
unix_socket = "${runDir}/headscale.sock";
|
|
|
|
tls_letsencrypt_cache_dir = "${dataDir}/.cache";
|
|
};
|
|
|
|
# Setup the headscale configuration in a known path in /etc to
|
|
# allow both the Server and the Client use it to find the socket
|
|
# for communication.
|
|
environment.etc."headscale/config.yaml".source = configFile;
|
|
|
|
users.groups.headscale = mkIf (cfg.group == "headscale") {};
|
|
|
|
users.users.headscale = mkIf (cfg.user == "headscale") {
|
|
description = "headscale user";
|
|
home = dataDir;
|
|
group = cfg.group;
|
|
isSystemUser = true;
|
|
};
|
|
|
|
systemd.services.headscale = {
|
|
description = "headscale coordination server for Tailscale";
|
|
after = ["network-online.target"];
|
|
wantedBy = ["multi-user.target"];
|
|
restartTriggers = [configFile];
|
|
|
|
environment.GIN_MODE = "release";
|
|
|
|
script = ''
|
|
${optionalString (cfg.settings.db_password_file != null) ''
|
|
export HEADSCALE_DB_PASS="$(head -n1 ${escapeShellArg cfg.settings.db_password_file})"
|
|
''}
|
|
|
|
exec ${cfg.package}/bin/headscale serve
|
|
'';
|
|
|
|
serviceConfig = let
|
|
capabilityBoundingSet = ["CAP_CHOWN"] ++ optional (cfg.port < 1024) "CAP_NET_BIND_SERVICE";
|
|
in {
|
|
Restart = "always";
|
|
Type = "simple";
|
|
User = cfg.user;
|
|
Group = cfg.group;
|
|
|
|
# Hardening options
|
|
RuntimeDirectory = "headscale";
|
|
# Allow headscale group access so users can be added and use the CLI.
|
|
RuntimeDirectoryMode = "0750";
|
|
|
|
StateDirectory = "headscale";
|
|
StateDirectoryMode = "0750";
|
|
|
|
ProtectSystem = "strict";
|
|
ProtectHome = true;
|
|
PrivateTmp = true;
|
|
PrivateDevices = true;
|
|
ProtectKernelTunables = true;
|
|
ProtectControlGroups = true;
|
|
RestrictSUIDSGID = true;
|
|
PrivateMounts = true;
|
|
ProtectKernelModules = true;
|
|
ProtectKernelLogs = true;
|
|
ProtectHostname = true;
|
|
ProtectClock = true;
|
|
ProtectProc = "invisible";
|
|
ProcSubset = "pid";
|
|
RestrictNamespaces = true;
|
|
RemoveIPC = true;
|
|
UMask = "0077";
|
|
|
|
CapabilityBoundingSet = capabilityBoundingSet;
|
|
AmbientCapabilities = capabilityBoundingSet;
|
|
NoNewPrivileges = true;
|
|
LockPersonality = true;
|
|
RestrictRealtime = true;
|
|
SystemCallFilter = ["@system-service" "~@privileged" "@chown"];
|
|
SystemCallArchitectures = "native";
|
|
RestrictAddressFamilies = "AF_INET AF_INET6 AF_UNIX";
|
|
};
|
|
};
|
|
};
|
|
|
|
meta.maintainers = with maintainers; [kradalby misterio77];
|
|
}
|