nixos/photoprism: init module

nixos/doc/manual/from_md/release-notes/rl-2305.section.xml

···
           <link xlink:href="options.html#opt-services.ulogd.enable">services.ulogd</link>.
         </para>
       </listitem>
+      <listitem>
+        <para>
+          <link xlink:href="https://photoprism.app/">photoprism</link>,
+          a AI-Powered Photos App for the Decentralized Web. Available
+          as
+          <link xlink:href="options.html#opt-services.photoprism.enable">services.photoprism</link>.
+        </para>
+      </listitem>
     </itemizedlist>
   </section>
   <section xml:id="sec-release-23.05-incompatibilities">

nixos/doc/manual/release-notes/rl-2305.section.md

···
 
 - [ulogd](https://www.netfilter.org/projects/ulogd/index.html), a userspace logging daemon for netfilter/iptables related logging. Available as [services.ulogd](options.html#opt-services.ulogd.enable).
 
+- [photoprism](https://photoprism.app/), a AI-Powered Photos App for the Decentralized Web. Available as [services.photoprism](options.html#opt-services.photoprism.enable).
+
 ## Backward Incompatibilities {#sec-release-23.05-incompatibilities}
 
 <!-- To avoid merge conflicts, consider adding your item at an arbitrary place in the list instead. -->

nixos/modules/module-list.nix

···
   ./services/web-apps/peertube.nix
   ./services/web-apps/pgpkeyserver-lite.nix
   ./services/web-apps/phylactery.nix
+  ./services/web-apps/photoprism.nix
   ./services/web-apps/pict-rs.nix
   ./services/web-apps/plantuml-server.nix
   ./services/web-apps/plausible.nix

nixos/modules/services/web-apps/photoprism.nix

···
+{ config, pkgs, lib, ... }:
+let
+  cfg = config.services.photoprism;
+
+  env = {
+    PHOTOPRISM_ORIGINALS_PATH = cfg.originalsPath;
+    PHOTOPRISM_STORAGE_PATH = cfg.storagePath;
+    PHOTOPRISM_IMPORT_PATH = cfg.importPath;
+    PHOTOPRISM_HTTP_HOST = cfg.address;
+    PHOTOPRISM_HTTP_PORT = toString cfg.port;
+  } // (
+    lib.mapAttrs (_: toString) cfg.settings
+  );
+
+  manage =
+    let
+      setupEnv = lib.concatStringsSep "\n" (lib.mapAttrsToList (name: val: "export ${name}=${lib.escapeShellArg val}") env);
+    in
+    pkgs.writeShellScript "manage" ''
+      ${setupEnv}
+      exec ${cfg.package}/bin/photoprism "$@"
+    '';
+in
+{
+  meta.maintainers = with lib.maintainers; [ stunkymonkey ];
+
+  options.services.photoprism = {
+
+    enable = lib.mkEnableOption (lib.mdDoc "Photoprism web server");
+
+    passwordFile = lib.mkOption {
+      type = lib.types.nullOr lib.types.path;
+      default = null;
+      description = lib.mdDoc ''
+        Admin password file.
+      '';
+    };
+
+    address = lib.mkOption {
+      type = lib.types.str;
+      default = "localhost";
+      description = lib.mdDoc ''
+        Web interface address.
+      '';
+    };
+
+    port = lib.mkOption {
+      type = lib.types.port;
+      default = 2342;
+      description = lib.mdDoc ''
+        Web interface port.
+      '';
+    };
+
+    originalsPath = lib.mkOption {
+      type = lib.types.path;
+      default = null;
+      example = "/data/photos";
+      description = lib.mdDoc ''
+        Storage path of your original media files (photos and videos).
+      '';
+    };
+
+    importPath = lib.mkOption {
+      type = lib.types.str;
+      default = "import";
+      description = lib.mdDoc ''
+        Relative or absolute to the `originalsPath` from where the files should be imported.
+      '';
+    };
+
+    storagePath = lib.mkOption {
+      type = lib.types.path;
+      default = "/var/lib/photoprism";
+      description = lib.mdDoc ''
+        Location for sidecar, cache, and database files.
+      '';
+    };
+
+    package = lib.mkPackageOptionMD pkgs "photoprism" { };
+
+    settings = lib.mkOption {
+      type = lib.types.attrsOf lib.types.str;
+      default = { };
+      description = lib.mdDoc ''
+        See [the getting-started guide](https://docs.photoprism.app/getting-started/config-options/) for available options.
+      '';
+      example = {
+        PHOTOPRISM_DEFAULT_LOCALE = "de";
+        PHOTOPRISM_ADMIN_USER = "root";
+      };
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    systemd.services.photoprism = {
+      description = "Photoprism server";
+
+      serviceConfig = {
+        Restart = "on-failure";
+        User = "photoprism";
+        Group = "photoprism";
+        DynamicUser = true;
+        StateDirectory = "photoprism";
+        WorkingDirectory = "/var/lib/photoprism";
+        RuntimeDirectory = "photoprism";
+
+        LoadCredential = lib.optionalString (cfg.passwordFile != null)
+          "PHOTOPRISM_ADMIN_PASSWORD:${cfg.passwordFile}";
+
+        CapabilityBoundingSet = "";
+        LockPersonality = true;
+        PrivateDevices = true;
+        PrivateUsers = true;
+        ProtectClock = true;
+        ProtectControlGroups = true;
+        ProtectHome = true;
+        ProtectHostname = true;
+        ProtectKernelLogs = true;
+        ProtectKernelModules = true;
+        ProtectKernelTunables = true;
+        RestrictAddressFamilies = [ "AF_UNIX" "AF_INET" "AF_INET6" ];
+        RestrictNamespaces = true;
+        RestrictRealtime = true;
+        SystemCallArchitectures = "native";
+        SystemCallFilter = [ "@system-service" "~@privileged @setuid @keyring" ];
+        UMask = "0066";
+      } // lib.optionalAttrs (cfg.port < 1024) {
+        AmbientCapabilities = [ "CAP_NET_BIND_SERVICE" ];
+        CapabilityBoundingSet = [ "CAP_NET_BIND_SERVICE" ];
+      };
+
+      wantedBy = [ "multi-user.target" ];
+      environment = env;
+
+      # reminder: easier password configuration will come in https://github.com/photoprism/photoprism/pull/2302
+      preStart = ''
+        ln -sf ${manage} photoprism-manage
+
+        ${lib.optionalString (cfg.passwordFile != null) ''
+          export PHOTOPRISM_ADMIN_PASSWORD=$(cat "$CREDENTIALS_DIRECTORY/PHOTOPRISM_ADMIN_PASSWORD")
+        ''}
+        exec ${cfg.package}/bin/photoprism migrations run -f
+      '';
+
+      script = ''
+        ${lib.optionalString (cfg.passwordFile != null) ''
+          export PHOTOPRISM_ADMIN_PASSWORD=$(cat "$CREDENTIALS_DIRECTORY/PHOTOPRISM_ADMIN_PASSWORD")
+        ''}
+        exec ${cfg.package}/bin/photoprism start
+      '';
+    };
+  };
+}
+