diff --git a/modules/lightning-charge.nix b/modules/lightning-charge.nix index 9566402..0da37c3 100644 --- a/modules/lightning-charge.nix +++ b/modules/lightning-charge.nix @@ -5,6 +5,8 @@ with lib; let cfg = config.services.lightning-charge; inherit (config) nix-bitcoin-services; + user = config.users.users.lightning-charge.name; + group = config.users.users.lightning-charge.group; in { options.services.lightning-charge = { enable = mkOption { @@ -14,35 +16,51 @@ in { If enabled, the lightning-charge service will be installed. ''; }; - clightning-datadir = mkOption { - type = types.str; - default = "/var/lib/clighting/"; - description = '' - Data directory of the clightning service - ''; + dataDir = mkOption { + type = types.path; + default = "/var/lib/lightning-charge"; + description = "The data directory for lightning-charge."; }; }; config = mkIf cfg.enable { + users.users.lightning-charge = { + description = "lightning-charge User"; + group = "lightning-charge"; + extraGroups = [ "clightning" ]; + }; + users.groups.lightning-charge = {}; + + systemd.tmpfiles.rules = [ + "d '${cfg.dataDir}' 0700 ${user} ${group} - -" + ]; + environment.systemPackages = [ pkgs.nix-bitcoin.lightning-charge ]; systemd.services.lightning-charge = { description = "Run lightning-charge"; wantedBy = [ "multi-user.target" ]; requires = [ "clightning.service" ]; after = [ "clightning.service" ]; + preStart = '' + # Move existing lightning-charge.db + # TODO: Remove eventually + if [[ -e ${config.services.clightning.dataDir}/lightning-charge.db ]]; then + mv ${config.services.clightning.dataDir}/lightning-charge.db ${cfg.dataDir}/lightning-charge.db + chown ${user}: ${cfg.dataDir}/lightning-charge.db + chmod 600 ${cfg.dataDir}/lightning-charge.db + fi + ''; serviceConfig = { + PermissionsStartOnly = "true"; EnvironmentFile = "${config.nix-bitcoin.secretsDir}/lightning-charge-env"; - ExecStart = "${pkgs.nix-bitcoin.lightning-charge}/bin/charged -l ${config.services.clightning.dataDir}/bitcoin -d ${config.services.clightning.dataDir}/lightning-charge.db"; - # Unfortunately c-lightning doesn't allow setting the permissions of the rpc socket, - # so this must run as the clightning user - # https://github.com/ElementsProject/lightning/issues/1366 - User = "clightning"; + ExecStart = "${pkgs.nix-bitcoin.lightning-charge}/bin/charged -l ${config.services.clightning.dataDir}/bitcoin -d ${cfg.dataDir}/lightning-charge.db"; + User = user; Restart = "on-failure"; RestartSec = "10s"; } // nix-bitcoin-services.defaultHardening // nix-bitcoin-services.nodejs // nix-bitcoin-services.allowTor; }; - nix-bitcoin.secrets.lightning-charge-env.user = "clightning"; + nix-bitcoin.secrets.lightning-charge-env.user = user; }; }