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{ options, config, pkgs, lib, ... }:
with lib;
let
cfg = config.services.gotosocial;
settingsFormat = pkgs.formats.json {};
in {
options = {
services.gotosocial = with lib; {
enable = mkEnableOption "GoToSocial ActivityPub Server";
package = mkOption {
type = types.package;
default = pkgs.gotosocial;
};
user = mkOption {
type = types.str;
default = "gotosocial";
};
group = mkOption {
type = types.str;
default = "gotosocial";
};
stateDir = mkOption {
type = types.str;
default = "/var/lib/gotosocial";
readOnly = true;
};
settings = lib.mkOption {
type = lib.types.submodule {
freeformType = settingsFormat.type;
options.host = lib.mkOption {
type = lib.types.nullOr lib.types.str;
default = null;
description = ''
Hostname that this server will be reachable at. Defaults to localhost for local testing,
but you should *definitely* change this when running for real, or your server won't work at all.
DO NOT change this after your server has already run once, or you will break things!
'';
};
options.port = lib.mkOption {
type = lib.types.port;
default = 8080;
description = ''
Int. Listen port for the GoToSocial webserver + API. If you're running behind a reverse proxy and/or in a docker,
container, just set this to whatever you like (or leave the default), and make sure it's forwarded properly.
If you are running with built-in letsencrypt enabled, and running GoToSocial directly on a host machine, you will
probably want to set this to 443 (standard https port), unless you have other services already using that port.
This *MUST NOT* be the same as the letsencrypt port specified below, unless letsencrypt is turned off.
'';
};
};
default = {};
description = ''
Configuration for GoToSocial, see
<link xlink:href="https://docs.gotosocial.org/en/latest/">
for supported values.
'';
};
};
};
config = lib.mkIf cfg.enable (let
configFile = settingsFormat.generate "gotosocial-config.yaml" cfg.settings;
in {
assertions = [
{
assertion = cfg.settings.host != null;
message = "You have to define a hostname for GoToSocial, it cannot be changed later without starting over!";
}
];
services.gotosocial.settings = { # Defaults
user = lib.mkDefault "gotosocial";
group = lib.mkDefault "gotosocial";
storage-local-base-path = lib.mkDefault "/var/lib/gotosocial"; # SystemD StateDirectory
web-template-base-dir = lib.mkDefault "${cfg.package}/share/web/template/";
web-asset-base-dir = lib.mkDefault "${cfg.package}/share/web/assets/";
};
users = {
users."${cfg.user}" = {
home = cfg.stateDir;
group = cfg.group;
isSystemUser = true;
};
groups."${cfg.group}" = {};
};
environment.etc."gotosocial.yaml".source = configFile;
environment.systemPackages = [
(pkgs.writeShellScriptBin "gotosocial" ''
exec ${cfg.package}/bin/gotosocial --config-path ${configFile} "$@"
'')
];
systemd.services = {
gotosocial = {
description = "GoToSocial ActivityPub Server";
after = [ "network-online.target" ];
wantedBy = [ "multi-user.target" ];
onFailure = [ "email-notify@%i.service" ];
serviceConfig = {
User = cfg.user;
Group = cfg.group;
Type = "exec";
WorkingDirectory = "~";
StateDirectory = lib.mkIf (cfg.settings.storage-local-base-path != "/var/lib/gotosocial") "gotosocial";
ReadOnlyPaths = [ cfg.package ];
ReadWritePaths = [ cfg.settings.storage-local-base-path ];
StateDirectoryMode = "750";
Restart = "always";
RestartSec = 3;
ExecStart = "${cfg.package}/bin/gotosocial --config-path ${configFile} server start";
NoNewPrivileges = true;
PrivateTmp = true;
PrivateDevices = false;
RestrictAddressFamilies = "AF_UNIX AF_INET AF_INET6";
RestrictNamespaces = true;
RestrictRealtime = true;
ProtectSystem = "full";
ProtectControlGroups = true;
ProtectKernelModules = true;
ProtectKernelTunables = true;
DevicePolicy = "closed";
LockPersonality = true;
SystemCallFilter = "~@clock @debug @module @mount @obsolete @reboot @setuid @swap";
CapabilityBoundingSet = [
"~CAP_RAWIO CAP_MKNOD"
"~CAP_AUDIT_CONTROL CAP_AUDIT_READ CAP_AUDIT_WRITE"
"~CAP_SYS_BOOT CAP_SYS_TIME CAP_SYS_MODULE CAP_SYS_PACCT"
"~CAP_LEASE CAP_LINUX_IMMUTABLE CAP_IPC_LOCK"
"~CAP_BLOCK_SUSPEND CAP_WAKE_ALARM"
"~CAP_SYS_TTY_CONFIG"
"~CAP_MAC_ADMIN CAP_MAC_OVERRIDE"
"~CAP_NET_ADMIN CAP_NET_BROADCAST CAP_NET_RAW"
"~CAP_SYS_ADMIN CAP_SYS_PTRACE CAP_SYSLOG"
];
};
};
};
});
}