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|
{ lib, pkgs, config, ... }:
with lib;
let
cfg = config.services.lemmy;
settingsFormat = pkgs.formats.json { };
in
{
meta.maintainers = with maintainers; [ happysalada ];
meta.doc = ./lemmy.xml;
imports = [
(mkRemovedOptionModule [ "services" "lemmy" "jwtSecretPath" ] "As of v0.13.0, Lemmy auto-generates the JWT secret.")
];
options.services.lemmy = {
enable = mkEnableOption (lib.mdDoc "lemmy a federated alternative to reddit in rust");
ui = {
port = mkOption {
type = types.port;
default = 1234;
description = lib.mdDoc "Port where lemmy-ui should listen for incoming requests.";
};
};
caddy.enable = mkEnableOption (lib.mdDoc "exposing lemmy with the caddy reverse proxy");
database.createLocally = mkEnableOption (lib.mdDoc "creation of database on the instance");
settings = mkOption {
default = { };
description = lib.mdDoc "Lemmy configuration";
type = types.submodule {
freeformType = settingsFormat.type;
options.hostname = mkOption {
type = types.str;
default = null;
description = lib.mdDoc "The domain name of your instance (eg 'lemmy.ml').";
};
options.port = mkOption {
type = types.port;
default = 8536;
description = lib.mdDoc "Port where lemmy should listen for incoming requests.";
};
options.federation = {
enabled = mkEnableOption (lib.mdDoc "activitypub federation");
};
options.captcha = {
enabled = mkOption {
type = types.bool;
default = true;
description = lib.mdDoc "Enable Captcha.";
};
difficulty = mkOption {
type = types.enum [ "easy" "medium" "hard" ];
default = "medium";
description = lib.mdDoc "The difficultly of the captcha to solve.";
};
};
};
};
};
config =
lib.mkIf cfg.enable {
services.lemmy.settings = (mapAttrs (name: mkDefault)
{
bind = "127.0.0.1";
tls_enabled = true;
pictrs_url = with config.services.pict-rs; "http://${address}:${toString port}";
actor_name_max_length = 20;
rate_limit.message = 180;
rate_limit.message_per_second = 60;
rate_limit.post = 6;
rate_limit.post_per_second = 600;
rate_limit.register = 3;
rate_limit.register_per_second = 3600;
rate_limit.image = 6;
rate_limit.image_per_second = 3600;
} // {
database = mapAttrs (name: mkDefault) {
user = "lemmy";
host = "/run/postgresql";
port = 5432;
database = "lemmy";
pool_size = 5;
};
});
services.postgresql = mkIf cfg.database.createLocally {
enable = true;
ensureDatabases = [ cfg.settings.database.database ];
ensureUsers = [{
name = cfg.settings.database.user;
ensurePermissions."DATABASE ${cfg.settings.database.database}" = "ALL PRIVILEGES";
}];
};
services.pict-rs.enable = true;
services.caddy = mkIf cfg.caddy.enable {
enable = mkDefault true;
virtualHosts."${cfg.settings.hostname}" = {
extraConfig = ''
handle_path /static/* {
root * ${pkgs.lemmy-ui}/dist
file_server
}
@for_backend {
path /api/* /pictrs/* /feeds/* /nodeinfo/*
}
handle @for_backend {
reverse_proxy 127.0.0.1:${toString cfg.settings.port}
}
@post {
method POST
}
handle @post {
reverse_proxy 127.0.0.1:${toString cfg.settings.port}
}
@jsonld {
header Accept "application/activity+json"
header Accept "application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\""
}
handle @jsonld {
reverse_proxy 127.0.0.1:${toString cfg.settings.port}
}
handle {
reverse_proxy 127.0.0.1:${toString cfg.ui.port}
}
'';
};
};
assertions = [{
assertion = cfg.database.createLocally -> cfg.settings.database.host == "localhost" || cfg.settings.database.host == "/run/postgresql";
message = "if you want to create the database locally, you need to use a local database";
}];
systemd.services.lemmy = {
description = "Lemmy server";
environment = {
LEMMY_CONFIG_LOCATION = "/run/lemmy/config.hjson";
# Verify how this is used, and don't put the password in the nix store
LEMMY_DATABASE_URL = with cfg.settings.database;"postgres:///${database}?host=${host}";
};
documentation = [
"https://join-lemmy.org/docs/en/administration/from_scratch.html"
"https://join-lemmy.org/docs"
];
wantedBy = [ "multi-user.target" ];
after = [ "pict-rs.service" ] ++ lib.optionals cfg.database.createLocally [ "postgresql.service" ];
requires = lib.optionals cfg.database.createLocally [ "postgresql.service" ];
serviceConfig = {
DynamicUser = true;
RuntimeDirectory = "lemmy";
ExecStartPre = "${pkgs.coreutils}/bin/install -m 600 ${settingsFormat.generate "config.hjson" cfg.settings} /run/lemmy/config.hjson";
ExecStart = "${pkgs.lemmy-server}/bin/lemmy_server";
};
};
systemd.services.lemmy-ui = {
description = "Lemmy ui";
environment = {
LEMMY_UI_HOST = "127.0.0.1:${toString cfg.ui.port}";
LEMMY_INTERNAL_HOST = "127.0.0.1:${toString cfg.settings.port}";
LEMMY_EXTERNAL_HOST = cfg.settings.hostname;
LEMMY_HTTPS = "false";
};
documentation = [
"https://join-lemmy.org/docs/en/administration/from_scratch.html"
"https://join-lemmy.org/docs"
];
wantedBy = [ "multi-user.target" ];
after = [ "lemmy.service" ];
requires = [ "lemmy.service" ];
serviceConfig = {
DynamicUser = true;
WorkingDirectory = "${pkgs.lemmy-ui}";
ExecStart = "${pkgs.nodejs}/bin/node ${pkgs.lemmy-ui}/dist/js/server.js";
};
};
};
}
|