+{ lib, pkgs, config, ... }:
+let
+ name = "mastodon";
+ cfg = config.services.mastodon;
+
+ uid = config.ids.uids.mastodon;
+ gid = config.ids.gids.mastodon;
+in
+{
+ options.services.mastodon = {
+ enable = lib.mkEnableOption "Enable Mastodon’s service";
+ user = lib.mkOption {
+ type = lib.types.str;
+ default = name;
+ description = "User account under which Mastodon runs";
+ };
+ group = lib.mkOption {
+ type = lib.types.str;
+ default = name;
+ description = "Group under which Mastodon runs";
+ };
+ dataDir = lib.mkOption {
+ type = lib.types.path;
+ default = "/var/lib/${name}";
+ description = ''
+ The directory where Mastodon stores its data.
+ '';
+ };
+ socketsPrefix = lib.mkOption {
+ type = lib.types.string;
+ default = "live";
+ description = ''
+ The prefix to use for Mastodon sockets.
+ '';
+ };
+ socketsDir = lib.mkOption {
+ type = lib.types.path;
+ default = "/run/${name}";
+ description = ''
+ The directory where Mastodon puts runtime files and sockets.
+ '';
+ };
+ configFile = lib.mkOption {
+ type = lib.types.path;
+ description = ''
+ The configuration file path for Mastodon.
+ '';
+ };
+ package = lib.mkOption {
+ type = lib.types.package;
+ default = pkgs.webapps.mastodon;
+ description = ''
+ Mastodon package to use.
+ '';
+ };
+ # Output variables
+ workdir = lib.mkOption {
+ type = lib.types.package;
+ default = cfg.package.override { varDir = cfg.dataDir; };
+ description = ''
+ Adjusted mastodon package with overriden varDir
+ '';
+ readOnly = true;
+ };
+ sockets = lib.mkOption {
+ type = lib.types.attrsOf lib.types.path;
+ default = {
+ node = "${cfg.socketsDir}/${cfg.socketsPrefix}_node.sock";
+ rails = "${cfg.socketsDir}/${cfg.socketsPrefix}_puma.sock";
+ };
+ readOnly = true;
+ description = ''
+ Mastodon sockets
+ '';
+ };
+ };
+
+ config = lib.mkIf cfg.enable {
+ users.users = lib.optionalAttrs (cfg.user == name) (lib.singleton {
+ inherit name;
+ inherit uid;
+ group = cfg.group;
+ description = "Mastodon user";
+ home = cfg.dataDir;
+ useDefaultShell = true;
+ });
+ users.groups = lib.optionalAttrs (cfg.group == name) (lib.singleton {
+ inherit name;
+ inherit gid;
+ });
+
+ systemd.services.mastodon-streaming = {
+ description = "Mastodon Streaming";
+ wantedBy = [ "multi-user.target" ];
+ after = [ "network.target" "mastodon-web.service" ];
+
+ environment.NODE_ENV = "production";
+ environment.SOCKET = cfg.sockets.node;
+
+ path = [ pkgs.nodejs pkgs.bashInteractive ];
+
+ script = ''
+ exec npm run start
+ '';
+
+ postStart = ''
+ while [ ! -S $SOCKET ]; do
+ sleep 0.5
+ done
+ chmod a+w $SOCKET
+ '';
+
+ postStop = ''
+ rm $SOCKET
+ '';
+
+ serviceConfig = {
+ User = cfg.user;
+ EnvironmentFile = cfg.configFile;
+ PrivateTmp = true;
+ Restart = "always";
+ TimeoutSec = 15;
+ Type = "simple";
+ WorkingDirectory = cfg.workdir;
+ };
+
+ unitConfig.RequiresMountsFor = cfg.dataDir;
+ };
+
+ systemd.services.mastodon-web = {
+ description = "Mastodon Web app";
+ wantedBy = [ "multi-user.target" ];
+ after = [ "network.target" ];
+
+ environment.RAILS_ENV = "production";
+ environment.BUNDLE_PATH = "${cfg.workdir.gems}/${cfg.workdir.gems.ruby.gemPath}";
+ environment.BUNDLE_GEMFILE = "${cfg.workdir.gems.confFiles}/Gemfile";
+ environment.SOCKET = cfg.sockets.rails;
+
+ path = [ cfg.workdir.gems cfg.workdir.gems.ruby pkgs.file ];
+
+ preStart = ''
+ ./bin/bundle exec rails db:migrate
+ '';
+
+ script = ''
+ exec ./bin/bundle exec puma -C config/puma.rb
+ '';
+
+ serviceConfig = {
+ User = cfg.user;
+ EnvironmentFile = cfg.configFile;
+ PrivateTmp = true;
+ Restart = "always";
+ TimeoutSec = 60;
+ Type = "simple";
+ WorkingDirectory = cfg.workdir;
+ };
+
+ unitConfig.RequiresMountsFor = cfg.dataDir;
+ };
+
+ systemd.services.mastodon-sidekiq = {
+ description = "Mastodon Sidekiq";
+ wantedBy = [ "multi-user.target" ];
+ after = [ "network.target" "mastodon-web.service" ];
+
+ environment.RAILS_ENV="production";
+ environment.BUNDLE_PATH = "${cfg.workdir.gems}/${cfg.workdir.gems.ruby.gemPath}";
+ environment.BUNDLE_GEMFILE = "${cfg.workdir.gems.confFiles}/Gemfile";
+ environment.DB_POOL="5";
+
+ path = [ cfg.workdir.gems cfg.workdir.gems.ruby pkgs.imagemagick pkgs.ffmpeg pkgs.file ];
+
+ script = ''
+ exec ./bin/bundle exec sidekiq -c 5 -q default -q mailers -q pull -q push
+ '';
+
+ serviceConfig = {
+ User = cfg.user;
+ EnvironmentFile = cfg.configFile;
+ PrivateTmp = true;
+ Restart = "always";
+ TimeoutSec = 15;
+ Type = "simple";
+ WorkingDirectory = cfg.workdir;
+ };
+
+ unitConfig.RequiresMountsFor = cfg.dataDir;
+ };
+
+ system.activationScripts.mastodon = {
+ deps = [ "users" ];
+ text = ''
+ install -m 0755 -o ${cfg.user} -g ${cfg.group} -d ${cfg.socketsDir}
+ install -m 0755 -o ${cfg.user} -g ${cfg.group} -d ${cfg.dataDir} ${cfg.dataDir}/tmp/cache
+ '';
+ };
+
+ };
+}