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{ config, lib, pkgs, ... }:
let
inherit (lib) mkEnableOption mkIf mkOption types literalExpression;
cfg = config.services.isso;
settingsFormat = pkgs.formats.ini { };
configFile = settingsFormat.generate "isso.conf" cfg.settings;
in {
options = {
services.isso = {
enable = mkEnableOption (lib.mdDoc ''
isso, a commenting server similar to Disqus.
Note: The application's author suppose to run isso behind a reverse proxy.
The embedded solution offered by NixOS is also only suitable for small installations
below 20 requests per second
'');
settings = mkOption {
description = lib.mdDoc ''
Configuration for `isso`.
See [Isso Server Configuration](https://posativ.org/isso/docs/configuration/server/)
for supported values.
'';
type = types.submodule {
freeformType = settingsFormat.type;
};
example = literalExpression ''
{
general = {
host = "http://localhost";
};
}
'';
};
};
};
config = mkIf cfg.enable {
services.isso.settings.general.dbpath = lib.mkDefault "/var/lib/isso/comments.db";
systemd.services.isso = {
description = "isso, a commenting server similar to Disqus";
wantedBy = [ "multi-user.target" ];
serviceConfig = {
User = "isso";
Group = "isso";
DynamicUser = true;
StateDirectory = "isso";
ExecStart = ''
${pkgs.isso}/bin/isso -c ${configFile}
'';
Restart = "on-failure";
RestartSec = 1;
# Hardening
CapabilityBoundingSet = [ "" ];
DeviceAllow = [ "" ];
LockPersonality = true;
PrivateDevices = true;
PrivateUsers = true;
ProcSubset = "pid";
ProtectClock = true;
ProtectControlGroups = true;
ProtectHome = true;
ProtectHostname = true;
ProtectKernelLogs = true;
ProtectKernelModules = true;
ProtectKernelTunables = true;
ProtectProc = "invisible";
RestrictAddressFamilies = [ "AF_INET" "AF_INET6" ];
RestrictNamespaces = true;
RestrictRealtime = true;
SystemCallArchitectures = "native";
SystemCallFilter = [ "@system-service" "~@privileged" "~@resources" ];
UMask = "0077";
};
};
};
}
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