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{ config, lib, pkgs, inputs, ... }:
with lib;
let
cfg = config.modules.services.akkoma;
poorObfuscation = y: x: "${x}@${y}";
federation-blocklist = lib.importTOML ./blocklist.toml;
inherit (lib.my) wrapFile;
in
{
options.modules.services.akkoma = {
enable = mkEnableOption "Akkoma instance";
package = mkOption { type = types.package; default = pkgs.akkoma; };
domain = mkOption { type = types.str; };
realHost = mkOption { type = types.str; };
instanceName = mkOption { type = types.str; default = "Akkoma on ${cfg.domain}"; };
oauthBaseUrl = mkOption { type = types.str; default = "Base URL of the OAuth provider"; };
secrets.akkoma-envs = mkOption { type = types.str; default = "Path to the akkoma environment file"; };
};
config = mkIf cfg.enable {
modules.services.postgresql.enable = true;
services.akkoma = {
enable = true;
package = cfg.package.overrideAttrs (old: {
# Akkoma doesn't include OAuth2 dependencies by default
# This can be obtained by running `OAUTH_CONSUMER_STRATEGIES="..." mix deps.get`.
# The server should also be launched with the same environment variable set.
nativeBuildInputs = let
inherit (pkgs.beamPackages) fetchHex buildMix;
oldMixDeps = old.passthru.mixNixDeps;
in old.nativeBuildInputs ++ builtins.attrValues rec {
# TODO: This needs to be bumped from time to time
oauth2 = buildMix rec {
name = "oauth2";
version = "2.1.0";
src = fetchHex {
pkg = name;
inherit version;
sha256 = "0h9bps7gq7bac5gc3q0cgpsj46qnchpqbv5hzsnd2z9hnf2pzh4a";
};
beamDeps = [ oldMixDeps.tesla ];
};
ueberauth_keycloak_strategy = buildMix rec {
name = "ueberauth_keycloak_strategy";
version = "0.4.0";
src = fetchHex {
pkg = name;
inherit version;
sha256 = "06r10w0azlpypjgggar1lf7h2yazn2dpyicy97zxkjyxgf9jfc60";
};
# There must be a way to configure this using config.exs and patchPhase,
# But just applying a patch is easier since patching ueberauth and
# this package didn't do the trick.
patches = [
./0001-fix-scope.patch
];
beamDeps = [ oauth2 oldMixDeps.ueberauth ];
};
};
OAUTH_CONSUMER_STRATEGIES = "keycloak:ueberauth_keycloak_strategy";
});
initDb.enable = true;
extraStatic = {
"static/terms-of-service.html" = wrapFile "terms-of-service.html" ./terms-of-service.html;
"static/logo.svg" = wrapFile "logo.svg" ./logo.svg;
"static/logo.png" = wrapFile "logo.png" ./logo.png;
"static/logo-512.png" = wrapFile "logo-512.png" ./favicon-withbg.png; # Intentional, for PWA favicon.
"static/icon.png" = wrapFile "icon.png" ./favicon.png;
"favicon.png" = wrapFile "favicon.png" ./favicon-withbg.png;
};
config =
let inherit ((pkgs.formats.elixirConf { }).lib) mkRaw mkMap mkTuple;
in {
":pleroma"."Pleroma.Web.Endpoint".url.host = cfg.realHost;
":pleroma"."Pleroma.Web.Endpoint".extra_cookie_attrs = [ "SameSite=Lax" ];
":pleroma"."Pleroma.Web.WebFinger".domain = cfg.domain;
":pleroma".":media_proxy".enabled = false;
":pleroma".":instance" = {
name = cfg.instanceName;
description = "Private akkoma instance";
email = poorObfuscation cfg.domain "postmaster";
notify_email = poorObfuscation cfg.domain "postmaster";
registrations_open = false;
account_approval_required = true;
invites_enabled = true;
limit = 5000;
};
":pleroma".":frontend_configurations" = {
pleroma_fe = mkMap {
logo = "/static/logo.png";
# FIXME: https://akkoma.dev/AkkomaGang/akkoma/pulls/668
# TODO: enable on next release
loginMethod = "token";
};
};
":pleroma".":mrf" = {
policies = map mkRaw [ "Pleroma.Web.ActivityPub.MRF.SimplePolicy" ];
};
":pleroma".":mrf_simple" = {
followers_only = mkMap federation-blocklist.followers_only;
media_nsfw = mkMap federation-blocklist.media_nsfw;
reject = mkMap federation-blocklist.reject;
};
":pleroma"."Pleroma.Captcha" = {
enabled = true;
method = mkRaw "Pleroma.Captcha.Kocaptcha";
};
":ueberauth" = {
"Ueberauth.Strategy.Keycloak.OAuth" = {
client_id = mkRaw ''System.get_env("AUTHENTIK_CLIENT_ID")'';
client_secret = mkRaw ''System.get_env("AUTHENTIK_CLIENT_SECRET")'';
site = cfg.oauthBaseUrl;
authorize_url = "${cfg.oauthBaseUrl}/application/o/authorize/";
token_url = "${cfg.oauthBaseUrl}/application/o/token/";
userinfo_url = "${cfg.oauthBaseUrl}/application/o/userinfo/";
token_method = mkRaw ":post";
};
Ueberauth.providers = {
keycloak = mkTuple [(mkRaw "Ueberauth.Strategy.Keycloak") {
default_scope = "openid profile email";
uid_field = mkRaw ":preferred_username";
}];
};
};
};
nginx = {
forceSSL = true;
useACMEHost = cfg.domain;
locations."~ \\.(js|css|woff|woff2?|png|jpe?g|svg)$" = {
extraConfig = ''
add_header Cache-Control "public, max-age=14400, must-revalidate";
'';
proxyPass = "http://unix:${config.services.akkoma.config.":pleroma"."Pleroma.Web.Endpoint".http.ip}";
proxyWebsockets = true;
recommendedProxySettings = true;
};
};
};
systemd.services.akkoma = {
after = [ "authentik.service" ];
environment.OAUTH_CONSUMER_STRATEGIES = "keycloak:ueberauth_keycloak_strategy";
serviceConfig.EnvironmentFile = cfg.secrets.akkoma-envs;
};
services.nginx.virtualHosts.${cfg.domain} = {
forceSSL = true;
useACMEHost = cfg.domain;
locations."/.well-known/host-meta" = {
extraConfig = ''
return 301 https://${cfg.realHost}$request_uri;
'';
};
};
modules.persistence.directories = [
"/var/lib/akkoma"
];
};
}
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