151 lines
4.1 KiB
Nix
151 lines
4.1 KiB
Nix
{ config
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, pkgs
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, lib
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, ...}:
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with lib;
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let
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cfg = config.services.polaris;
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settingsFormat = pkgs.formats.toml {};
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in
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{
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options = {
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services.polaris = {
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enable = mkEnableOption "Polaris Music Server";
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package = mkPackageOption pkgs "polaris" { };
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user = mkOption {
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type = types.str;
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default = "polaris";
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description = "User account under which Polaris runs.";
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};
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group = mkOption {
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type = types.str;
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default = "polaris";
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description = "Group under which Polaris is run.";
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};
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extraGroups = mkOption {
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type = types.listOf types.str;
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default = [];
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description = "Polaris' auxiliary groups.";
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example = literalExpression ''["media" "music"]'';
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};
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port = mkOption {
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type = types.port;
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default = 5050;
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description = ''
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The port which the Polaris REST api and web UI should listen to.
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Note: polaris is hardcoded to listen to the hostname "0.0.0.0".
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'';
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};
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settings = mkOption {
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type = settingsFormat.type;
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default = {};
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description = ''
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Contents for the TOML Polaris config, applied each start.
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Although poorly documented, an example may be found here:
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<link xlink:href="https://github.com/agersant/polaris/blob/374d0ca56fc0a466d797a4b252e2078607476797/test-data/config.toml">test-config.toml</link>
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'';
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example = literalExpression ''
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{
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settings.reindex_every_n_seconds = 7*24*60*60; # weekly, default is 1800
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settings.album_art_pattern =
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"(cover|front|folder)\.(jpeg|jpg|png|bmp|gif)";
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mount_dirs = [
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{
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name = "NAS";
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source = "/mnt/nas/music";
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}
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{
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name = "Local";
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source = "/home/my_user/Music";
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}
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];
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}
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'';
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};
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openFirewall = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Open the configured port in the firewall.
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'';
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};
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};
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};
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config = mkIf cfg.enable {
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systemd.services.polaris = {
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description = "Polaris Music Server";
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after = [ "network.target" ];
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wantedBy = [ "multi-user.target" ];
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serviceConfig = rec {
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User = cfg.user;
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Group = cfg.group;
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DynamicUser = true;
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SupplementaryGroups = cfg.extraGroups;
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StateDirectory = "polaris";
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CacheDirectory = "polaris";
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ExecStart = escapeShellArgs ([
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"${cfg.package}/bin/polaris"
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"--foreground"
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"--port" cfg.port
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"--database" "/var/lib/${StateDirectory}/db.sqlite"
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"--cache" "/var/cache/${CacheDirectory}"
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] ++ optionals (cfg.settings != {}) [
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"--config" (settingsFormat.generate "polaris-config.toml" cfg.settings)
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]);
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Restart = "on-failure";
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# Security options:
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#NoNewPrivileges = true; # implied by DynamicUser
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#RemoveIPC = true; # implied by DynamicUser
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AmbientCapabilities = "";
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CapabilityBoundingSet = "";
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DeviceAllow = "";
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LockPersonality = true;
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#PrivateTmp = true; # implied by DynamicUser
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PrivateDevices = true;
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PrivateUsers = true;
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ProtectClock = true;
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ProtectControlGroups = true;
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ProtectHostname = true;
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ProtectKernelLogs = true;
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ProtectKernelModules = true;
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ProtectKernelTunables = true;
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RestrictNamespaces = true;
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RestrictAddressFamilies = [ "AF_INET" "AF_INET6" "AF_UNIX" ];
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RestrictRealtime = true;
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#RestrictSUIDSGID = true; # implied by DynamicUser
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SystemCallArchitectures = "native";
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SystemCallErrorNumber = "EPERM";
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SystemCallFilter = [
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"@system-service"
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"~@cpu-emulation" "~@debug" "~@keyring" "~@memlock" "~@obsolete" "~@privileged" "~@setuid"
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];
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};
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};
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networking.firewall = mkIf cfg.openFirewall {
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allowedTCPPorts = [ cfg.port ];
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};
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};
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meta.maintainers = with maintainers; [ pbsds ];
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}
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