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-rw-r--r--nixos/modules/services/web-apps/nextcloud.nix933
1 files changed, 933 insertions, 0 deletions
diff --git a/nixos/modules/services/web-apps/nextcloud.nix b/nixos/modules/services/web-apps/nextcloud.nix
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+++ b/nixos/modules/services/web-apps/nextcloud.nix
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+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.services.nextcloud;
+  fpm = config.services.phpfpm.pools.nextcloud;
+
+  inherit (cfg) datadir;
+
+  phpPackage = cfg.phpPackage.buildEnv {
+    extensions = { enabled, all }:
+      (with all;
+        enabled
+        ++ optional cfg.enableImagemagick imagick
+        # Optionally enabled depending on caching settings
+        ++ optional cfg.caching.apcu apcu
+        ++ optional cfg.caching.redis redis
+        ++ optional cfg.caching.memcached memcached
+      )
+      ++ cfg.phpExtraExtensions all; # Enabled by user
+    extraConfig = toKeyValue phpOptions;
+  };
+
+  toKeyValue = generators.toKeyValue {
+    mkKeyValue = generators.mkKeyValueDefault {} " = ";
+  };
+
+  phpOptions = {
+    upload_max_filesize = cfg.maxUploadSize;
+    post_max_size = cfg.maxUploadSize;
+    memory_limit = cfg.maxUploadSize;
+  } // cfg.phpOptions
+    // optionalAttrs cfg.caching.apcu {
+      "apc.enable_cli" = "1";
+    };
+
+  occ = pkgs.writeScriptBin "nextcloud-occ" ''
+    #! ${pkgs.runtimeShell}
+    cd ${cfg.package}
+    sudo=exec
+    if [[ "$USER" != nextcloud ]]; then
+      sudo='exec /run/wrappers/bin/sudo -u nextcloud --preserve-env=NEXTCLOUD_CONFIG_DIR --preserve-env=OC_PASS'
+    fi
+    export NEXTCLOUD_CONFIG_DIR="${datadir}/config"
+    $sudo \
+      ${phpPackage}/bin/php \
+      occ "$@"
+  '';
+
+  inherit (config.system) stateVersion;
+
+in {
+
+  imports = [
+    (mkRemovedOptionModule [ "services" "nextcloud" "config" "adminpass" ] ''
+      Please use `services.nextcloud.config.adminpassFile' instead!
+    '')
+    (mkRemovedOptionModule [ "services" "nextcloud" "config" "dbpass" ] ''
+      Please use `services.nextcloud.config.dbpassFile' instead!
+    '')
+    (mkRemovedOptionModule [ "services" "nextcloud" "nginx" "enable" ] ''
+      The nextcloud module supports `nginx` as reverse-proxy by default and doesn't
+      support other reverse-proxies officially.
+
+      However it's possible to use an alternative reverse-proxy by
+
+        * disabling nginx
+        * setting `listen.owner` & `listen.group` in the phpfpm-pool to a different value
+
+      Further details about this can be found in the `Nextcloud`-section of the NixOS-manual
+      (which can be openend e.g. by running `nixos-help`).
+    '')
+    (mkRemovedOptionModule [ "services" "nextcloud" "disableImagemagick" ] ''
+      Use services.nextcloud.nginx.enableImagemagick instead.
+    '')
+  ];
+
+  options.services.nextcloud = {
+    enable = mkEnableOption "nextcloud";
+    hostName = mkOption {
+      type = types.str;
+      description = "FQDN for the nextcloud instance.";
+    };
+    home = mkOption {
+      type = types.str;
+      default = "/var/lib/nextcloud";
+      description = "Storage path of nextcloud.";
+    };
+    datadir = mkOption {
+      type = types.str;
+      defaultText = "config.services.nextcloud.home";
+      description = ''
+        Data storage path of nextcloud.  Will be <xref linkend="opt-services.nextcloud.home" /> by default.
+        This folder will be populated with a config.php and data folder which contains the state of the instance (excl the database).";
+      '';
+      example = "/mnt/nextcloud-file";
+    };
+    extraApps = mkOption {
+      type = types.attrsOf types.package;
+      default = { };
+      description = ''
+        Extra apps to install. Should be an attrSet of appid to packages generated by fetchNextcloudApp.
+        The appid must be identical to the "id" value in the apps appinfo/info.xml.
+        Using this will disable the appstore to prevent Nextcloud from updating these apps (see <xref linkend="opt-services.nextcloud.appstoreEnable" />).
+      '';
+      example = literalExpression ''
+        {
+          maps = pkgs.fetchNextcloudApp {
+            name = "maps";
+            sha256 = "007y80idqg6b6zk6kjxg4vgw0z8fsxs9lajnv49vv1zjy6jx2i1i";
+            url = "https://github.com/nextcloud/maps/releases/download/v0.1.9/maps-0.1.9.tar.gz";
+            version = "0.1.9";
+          };
+          phonetrack = pkgs.fetchNextcloudApp {
+            name = "phonetrack";
+            sha256 = "0qf366vbahyl27p9mshfma1as4nvql6w75zy2zk5xwwbp343vsbc";
+            url = "https://gitlab.com/eneiluj/phonetrack-oc/-/wikis/uploads/931aaaf8dca24bf31a7e169a83c17235/phonetrack-0.6.9.tar.gz";
+            version = "0.6.9";
+          };
+        }
+        '';
+    };
+    extraAppsEnable = mkOption {
+      type = types.bool;
+      default = true;
+      description = ''
+        Automatically enable the apps in <xref linkend="opt-services.nextcloud.extraApps" /> every time nextcloud starts.
+        If set to false, apps need to be enabled in the Nextcloud user interface or with nextcloud-occ app:enable.
+      '';
+    };
+    appstoreEnable = mkOption {
+      type = types.nullOr types.bool;
+      default = null;
+      example = true;
+      description = ''
+        Allow the installation of apps and app updates from the store.
+        Enabled by default unless there are packages in <xref linkend="opt-services.nextcloud.extraApps" />.
+        Set to true to force enable the store even if <xref linkend="opt-services.nextcloud.extraApps" /> is used.
+        Set to false to disable the installation of apps from the global appstore. App management is always enabled regardless of this setting.
+      '';
+    };
+    logLevel = mkOption {
+      type = types.ints.between 0 4;
+      default = 2;
+      description = "Log level value between 0 (DEBUG) and 4 (FATAL).";
+    };
+    https = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Use https for generated links.";
+    };
+    package = mkOption {
+      type = types.package;
+      description = "Which package to use for the Nextcloud instance.";
+      relatedPackages = [ "nextcloud22" "nextcloud23" ];
+    };
+    phpPackage = mkOption {
+      type = types.package;
+      relatedPackages = [ "php74" "php80" ];
+      defaultText = "pkgs.php";
+      description = ''
+        PHP package to use for Nextcloud.
+      '';
+    };
+
+    maxUploadSize = mkOption {
+      default = "512M";
+      type = types.str;
+      description = ''
+        Defines the upload limit for files. This changes the relevant options
+        in php.ini and nginx if enabled.
+      '';
+    };
+
+    skeletonDirectory = mkOption {
+      default = "";
+      type = types.str;
+      description = ''
+        The directory where the skeleton files are located. These files will be
+        copied to the data directory of new users. Leave empty to not copy any
+        skeleton files.
+      '';
+    };
+
+    webfinger = mkOption {
+      type = types.bool;
+      default = false;
+      description = ''
+        Enable this option if you plan on using the webfinger plugin.
+        The appropriate nginx rewrite rules will be added to your configuration.
+      '';
+    };
+
+    phpExtraExtensions = mkOption {
+      type = with types; functionTo (listOf package);
+      default = all: [];
+      defaultText = literalExpression "all: []";
+      description = ''
+        Additional PHP extensions to use for nextcloud.
+        By default, only extensions necessary for a vanilla nextcloud installation are enabled,
+        but you may choose from the list of available extensions and add further ones.
+        This is sometimes necessary to be able to install a certain nextcloud app that has additional requirements.
+      '';
+      example = literalExpression ''
+        all: [ all.pdlib all.bz2 ]
+      '';
+    };
+
+    phpOptions = mkOption {
+      type = types.attrsOf types.str;
+      default = {
+        short_open_tag = "Off";
+        expose_php = "Off";
+        error_reporting = "E_ALL & ~E_DEPRECATED & ~E_STRICT";
+        display_errors = "stderr";
+        "opcache.enable_cli" = "1";
+        "opcache.interned_strings_buffer" = "8";
+        "opcache.max_accelerated_files" = "10000";
+        "opcache.memory_consumption" = "128";
+        "opcache.revalidate_freq" = "1";
+        "opcache.fast_shutdown" = "1";
+        "openssl.cafile" = "/etc/ssl/certs/ca-certificates.crt";
+        catch_workers_output = "yes";
+      };
+      description = ''
+        Options for PHP's php.ini file for nextcloud.
+      '';
+    };
+
+    poolSettings = mkOption {
+      type = with types; attrsOf (oneOf [ str int bool ]);
+      default = {
+        "pm" = "dynamic";
+        "pm.max_children" = "32";
+        "pm.start_servers" = "2";
+        "pm.min_spare_servers" = "2";
+        "pm.max_spare_servers" = "4";
+        "pm.max_requests" = "500";
+      };
+      description = ''
+        Options for nextcloud's PHP pool. See the documentation on <literal>php-fpm.conf</literal> for details on configuration directives.
+      '';
+    };
+
+    poolConfig = mkOption {
+      type = types.nullOr types.lines;
+      default = null;
+      description = ''
+        Options for nextcloud's PHP pool. See the documentation on <literal>php-fpm.conf</literal> for details on configuration directives.
+      '';
+    };
+
+    config = {
+      dbtype = mkOption {
+        type = types.enum [ "sqlite" "pgsql" "mysql" ];
+        default = "sqlite";
+        description = "Database type.";
+      };
+      dbname = mkOption {
+        type = types.nullOr types.str;
+        default = "nextcloud";
+        description = "Database name.";
+      };
+      dbuser = mkOption {
+        type = types.nullOr types.str;
+        default = "nextcloud";
+        description = "Database user.";
+      };
+      dbpassFile = mkOption {
+        type = types.nullOr types.str;
+        default = null;
+        description = ''
+          The full path to a file that contains the database password.
+        '';
+      };
+      dbhost = mkOption {
+        type = types.nullOr types.str;
+        default = "localhost";
+        description = ''
+          Database host.
+
+          Note: for using Unix authentication with PostgreSQL, this should be
+          set to <literal>/run/postgresql</literal>.
+        '';
+      };
+      dbport = mkOption {
+        type = with types; nullOr (either int str);
+        default = null;
+        description = "Database port.";
+      };
+      dbtableprefix = mkOption {
+        type = types.nullOr types.str;
+        default = null;
+        description = "Table prefix in Nextcloud database.";
+      };
+      adminuser = mkOption {
+        type = types.str;
+        default = "root";
+        description = "Admin username.";
+      };
+      adminpassFile = mkOption {
+        type = types.str;
+        description = ''
+          The full path to a file that contains the admin's password. Must be
+          readable by user <literal>nextcloud</literal>.
+        '';
+      };
+
+      extraTrustedDomains = mkOption {
+        type = types.listOf types.str;
+        default = [];
+        description = ''
+          Trusted domains, from which the nextcloud installation will be
+          acessible.  You don't need to add
+          <literal>services.nextcloud.hostname</literal> here.
+        '';
+      };
+
+      trustedProxies = mkOption {
+        type = types.listOf types.str;
+        default = [];
+        description = ''
+          Trusted proxies, to provide if the nextcloud installation is being
+          proxied to secure against e.g. spoofing.
+        '';
+      };
+
+      overwriteProtocol = mkOption {
+        type = types.nullOr (types.enum [ "http" "https" ]);
+        default = null;
+        example = "https";
+
+        description = ''
+          Force Nextcloud to always use HTTPS i.e. for link generation. Nextcloud
+          uses the currently used protocol by default, but when behind a reverse-proxy,
+          it may use <literal>http</literal> for everything although Nextcloud
+          may be served via HTTPS.
+        '';
+      };
+
+      defaultPhoneRegion = mkOption {
+        default = null;
+        type = types.nullOr types.str;
+        example = "DE";
+        description = ''
+          <warning>
+           <para>This option exists since Nextcloud 21! If older versions are used,
+            this will throw an eval-error!</para>
+          </warning>
+
+          <link xlink:href="https://www.iso.org/iso-3166-country-codes.html">ISO 3611-1</link>
+          country codes for automatic phone-number detection without a country code.
+
+          With e.g. <literal>DE</literal> set, the <literal>+49</literal> can be omitted for
+          phone-numbers.
+        '';
+      };
+
+      objectstore = {
+        s3 = {
+          enable = mkEnableOption ''
+            S3 object storage as primary storage.
+
+            This mounts a bucket on an Amazon S3 object storage or compatible
+            implementation into the virtual filesystem.
+
+            Further details about this feature can be found in the
+            <link xlink:href="https://docs.nextcloud.com/server/22/admin_manual/configuration_files/primary_storage.html">upstream documentation</link>.
+          '';
+          bucket = mkOption {
+            type = types.str;
+            example = "nextcloud";
+            description = ''
+              The name of the S3 bucket.
+            '';
+          };
+          autocreate = mkOption {
+            type = types.bool;
+            description = ''
+              Create the objectstore if it does not exist.
+            '';
+          };
+          key = mkOption {
+            type = types.str;
+            example = "EJ39ITYZEUH5BGWDRUFY";
+            description = ''
+              The access key for the S3 bucket.
+            '';
+          };
+          secretFile = mkOption {
+            type = types.str;
+            example = "/var/nextcloud-objectstore-s3-secret";
+            description = ''
+              The full path to a file that contains the access secret. Must be
+              readable by user <literal>nextcloud</literal>.
+            '';
+          };
+          hostname = mkOption {
+            type = types.nullOr types.str;
+            default = null;
+            example = "example.com";
+            description = ''
+              Required for some non-Amazon implementations.
+            '';
+          };
+          port = mkOption {
+            type = types.nullOr types.port;
+            default = null;
+            description = ''
+              Required for some non-Amazon implementations.
+            '';
+          };
+          useSsl = mkOption {
+            type = types.bool;
+            default = true;
+            description = ''
+              Use SSL for objectstore access.
+            '';
+          };
+          region = mkOption {
+            type = types.nullOr types.str;
+            default = null;
+            example = "REGION";
+            description = ''
+              Required for some non-Amazon implementations.
+            '';
+          };
+          usePathStyle = mkOption {
+            type = types.bool;
+            default = false;
+            description = ''
+              Required for some non-Amazon S3 implementations.
+
+              Ordinarily, requests will be made with
+              <literal>http://bucket.hostname.domain/</literal>, but with path style
+              enabled requests are made with
+              <literal>http://hostname.domain/bucket</literal> instead.
+            '';
+          };
+        };
+      };
+    };
+
+    enableImagemagick = mkEnableOption ''
+        the ImageMagick module for PHP.
+        This is used by the theming app and for generating previews of certain images (e.g. SVG and HEIF).
+        You may want to disable it for increased security. In that case, previews will still be available
+        for some images (e.g. JPEG and PNG).
+        See <link xlink:href="https://github.com/nextcloud/server/issues/13099" />.
+    '' // {
+      default = true;
+    };
+
+    caching = {
+      apcu = mkOption {
+        type = types.bool;
+        default = true;
+        description = ''
+          Whether to load the APCu module into PHP.
+        '';
+      };
+      redis = mkOption {
+        type = types.bool;
+        default = false;
+        description = ''
+          Whether to load the Redis module into PHP.
+          You still need to enable Redis in your config.php.
+          See https://docs.nextcloud.com/server/14/admin_manual/configuration_server/caching_configuration.html
+        '';
+      };
+      memcached = mkOption {
+        type = types.bool;
+        default = false;
+        description = ''
+          Whether to load the Memcached module into PHP.
+          You still need to enable Memcached in your config.php.
+          See https://docs.nextcloud.com/server/14/admin_manual/configuration_server/caching_configuration.html
+        '';
+      };
+    };
+    autoUpdateApps = {
+      enable = mkOption {
+        type = types.bool;
+        default = false;
+        description = ''
+          Run regular auto update of all apps installed from the nextcloud app store.
+        '';
+      };
+      startAt = mkOption {
+        type = with types; either str (listOf str);
+        default = "05:00:00";
+        example = "Sun 14:00:00";
+        description = ''
+          When to run the update. See `systemd.services.&lt;name&gt;.startAt`.
+        '';
+      };
+    };
+    occ = mkOption {
+      type = types.package;
+      default = occ;
+      defaultText = literalDocBook "generated script";
+      internal = true;
+      description = ''
+        The nextcloud-occ program preconfigured to target this Nextcloud instance.
+      '';
+    };
+
+    nginx.recommendedHttpHeaders = mkOption {
+      type = types.bool;
+      default = true;
+      description = "Enable additional recommended HTTP response headers";
+    };
+  };
+
+  config = mkIf cfg.enable (mkMerge [
+    { warnings = let
+        latest = 23;
+        upgradeWarning = major: nixos:
+          ''
+            A legacy Nextcloud install (from before NixOS ${nixos}) may be installed.
+
+            After nextcloud${toString major} is installed successfully, you can safely upgrade
+            to ${toString (major + 1)}. The latest version available is nextcloud${toString latest}.
+
+            Please note that Nextcloud doesn't support upgrades across multiple major versions
+            (i.e. an upgrade from 16 is possible to 17, but not 16 to 18).
+
+            The package can be upgraded by explicitly declaring the service-option
+            `services.nextcloud.package`.
+          '';
+
+        # FIXME(@Ma27) remove as soon as nextcloud properly supports
+        # mariadb >=10.6.
+        isUnsupportedMariadb =
+          # All currently supported Nextcloud versions are affected (https://github.com/nextcloud/server/issues/25436).
+          (versionOlder cfg.package.version "24")
+          # This module uses mysql
+          && (cfg.config.dbtype == "mysql")
+          # MySQL is managed via NixOS
+          && config.services.mysql.enable
+          # We're using MariaDB
+          && (getName config.services.mysql.package) == "mariadb-server"
+          # MariaDB is at least 10.6 and thus not supported
+          && (versionAtLeast (getVersion config.services.mysql.package) "10.6");
+
+      in (optional (cfg.poolConfig != null) ''
+          Using config.services.nextcloud.poolConfig is deprecated and will become unsupported in a future release.
+          Please migrate your configuration to config.services.nextcloud.poolSettings.
+        '')
+        ++ (optional (versionOlder cfg.package.version "21") (upgradeWarning 20 "21.05"))
+        ++ (optional (versionOlder cfg.package.version "22") (upgradeWarning 21 "21.11"))
+        ++ (optional (versionOlder cfg.package.version "23") (upgradeWarning 22 "22.05"))
+        ++ (optional isUnsupportedMariadb ''
+            You seem to be using MariaDB at an unsupported version (i.e. at least 10.6)!
+            Please note that this isn't supported officially by Nextcloud. You can either
+
+            * Switch to `pkgs.mysql`
+            * Downgrade MariaDB to at least 10.5
+            * Work around Nextcloud's problems by specifying `innodb_read_only_compressed=0`
+
+            For further context, please read
+            https://help.nextcloud.com/t/update-to-next-cloud-21-0-2-has-get-an-error/117028/15
+          '');
+
+      services.nextcloud.package = with pkgs;
+        mkDefault (
+          if pkgs ? nextcloud
+            then throw ''
+              The `pkgs.nextcloud`-attribute has been removed. If it's supposed to be the default
+              nextcloud defined in an overlay, please set `services.nextcloud.package` to
+              `pkgs.nextcloud`.
+            ''
+          else if versionOlder stateVersion "21.11" then nextcloud21
+          else if versionOlder stateVersion "22.05" then nextcloud22
+          else nextcloud23
+        );
+
+      services.nextcloud.datadir = mkOptionDefault config.services.nextcloud.home;
+
+      services.nextcloud.phpPackage =
+        if versionOlder cfg.package.version "21" then pkgs.php74
+        else pkgs.php80;
+    }
+
+    { systemd.timers.nextcloud-cron = {
+        wantedBy = [ "timers.target" ];
+        timerConfig.OnBootSec = "5m";
+        timerConfig.OnUnitActiveSec = "5m";
+        timerConfig.Unit = "nextcloud-cron.service";
+      };
+
+      systemd.tmpfiles.rules = ["d ${cfg.home} 0750 nextcloud nextcloud"];
+
+      systemd.services = {
+        # When upgrading the Nextcloud package, Nextcloud can report errors such as
+        # "The files of the app [all apps in /var/lib/nextcloud/apps] were not replaced correctly"
+        # Restarting phpfpm on Nextcloud package update fixes these issues (but this is a workaround).
+        phpfpm-nextcloud.restartTriggers = [ cfg.package ];
+
+        nextcloud-setup = let
+          c = cfg.config;
+          writePhpArrary = a: "[${concatMapStringsSep "," (val: ''"${toString val}"'') a}]";
+          requiresReadSecretFunction = c.dbpassFile != null || c.objectstore.s3.enable;
+          objectstoreConfig = let s3 = c.objectstore.s3; in optionalString s3.enable ''
+            'objectstore' => [
+              'class' => '\\OC\\Files\\ObjectStore\\S3',
+              'arguments' => [
+                'bucket' => '${s3.bucket}',
+                'autocreate' => ${boolToString s3.autocreate},
+                'key' => '${s3.key}',
+                'secret' => nix_read_secret('${s3.secretFile}'),
+                ${optionalString (s3.hostname != null) "'hostname' => '${s3.hostname}',"}
+                ${optionalString (s3.port != null) "'port' => ${toString s3.port},"}
+                'use_ssl' => ${boolToString s3.useSsl},
+                ${optionalString (s3.region != null) "'region' => '${s3.region}',"}
+                'use_path_style' => ${boolToString s3.usePathStyle},
+              ],
+            ]
+          '';
+
+          showAppStoreSetting = cfg.appstoreEnable != null || cfg.extraApps != {};
+          renderedAppStoreSetting =
+            let
+              x = cfg.appstoreEnable;
+            in
+              if x == null then "false"
+              else boolToString x;
+
+          overrideConfig = pkgs.writeText "nextcloud-config.php" ''
+            <?php
+            ${optionalString requiresReadSecretFunction ''
+              function nix_read_secret($file) {
+                if (!file_exists($file)) {
+                  throw new \RuntimeException(sprintf(
+                    "Cannot start Nextcloud, secret file %s set by NixOS doesn't seem to "
+                    . "exist! Please make sure that the file exists and has appropriate "
+                    . "permissions for user & group 'nextcloud'!",
+                    $file
+                  ));
+                }
+
+                return trim(file_get_contents($file));
+              }
+            ''}
+            $CONFIG = [
+              'apps_paths' => [
+                ${optionalString (cfg.extraApps != { }) "[ 'path' => '${cfg.home}/nix-apps', 'url' => '/nix-apps', 'writable' => false ],"}
+                [ 'path' => '${cfg.home}/apps', 'url' => '/apps', 'writable' => false ],
+                [ 'path' => '${cfg.home}/store-apps', 'url' => '/store-apps', 'writable' => true ],
+              ],
+              ${optionalString (showAppStoreSetting) "'appstoreenabled' => ${renderedAppStoreSetting},"}
+              'datadirectory' => '${datadir}/data',
+              'skeletondirectory' => '${cfg.skeletonDirectory}',
+              ${optionalString cfg.caching.apcu "'memcache.local' => '\\OC\\Memcache\\APCu',"}
+              'log_type' => 'syslog',
+              'log_level' => '${builtins.toString cfg.logLevel}',
+              ${optionalString (c.overwriteProtocol != null) "'overwriteprotocol' => '${c.overwriteProtocol}',"}
+              ${optionalString (c.dbname != null) "'dbname' => '${c.dbname}',"}
+              ${optionalString (c.dbhost != null) "'dbhost' => '${c.dbhost}',"}
+              ${optionalString (c.dbport != null) "'dbport' => '${toString c.dbport}',"}
+              ${optionalString (c.dbuser != null) "'dbuser' => '${c.dbuser}',"}
+              ${optionalString (c.dbtableprefix != null) "'dbtableprefix' => '${toString c.dbtableprefix}',"}
+              ${optionalString (c.dbpassFile != null) "'dbpassword' => nix_read_secret('${c.dbpassFile}'),"}
+              'dbtype' => '${c.dbtype}',
+              'trusted_domains' => ${writePhpArrary ([ cfg.hostName ] ++ c.extraTrustedDomains)},
+              'trusted_proxies' => ${writePhpArrary (c.trustedProxies)},
+              ${optionalString (c.defaultPhoneRegion != null) "'default_phone_region' => '${c.defaultPhoneRegion}',"}
+              ${objectstoreConfig}
+            ];
+          '';
+          occInstallCmd = let
+            mkExport = { arg, value }: "export ${arg}=${value}";
+            dbpass = {
+              arg = "DBPASS";
+              value = if c.dbpassFile != null
+                then ''"$(<"${toString c.dbpassFile}")"''
+                else ''""'';
+            };
+            adminpass = {
+              arg = "ADMINPASS";
+              value = ''"$(<"${toString c.adminpassFile}")"'';
+            };
+            installFlags = concatStringsSep " \\\n    "
+              (mapAttrsToList (k: v: "${k} ${toString v}") {
+              "--database" = ''"${c.dbtype}"'';
+              # The following attributes are optional depending on the type of
+              # database.  Those that evaluate to null on the left hand side
+              # will be omitted.
+              ${if c.dbname != null then "--database-name" else null} = ''"${c.dbname}"'';
+              ${if c.dbhost != null then "--database-host" else null} = ''"${c.dbhost}"'';
+              ${if c.dbport != null then "--database-port" else null} = ''"${toString c.dbport}"'';
+              ${if c.dbuser != null then "--database-user" else null} = ''"${c.dbuser}"'';
+              "--database-pass" = "\$${dbpass.arg}";
+              "--admin-user" = ''"${c.adminuser}"'';
+              "--admin-pass" = "\$${adminpass.arg}";
+              "--data-dir" = ''"${datadir}/data"'';
+            });
+          in ''
+            ${mkExport dbpass}
+            ${mkExport adminpass}
+            ${occ}/bin/nextcloud-occ maintenance:install \
+                ${installFlags}
+          '';
+          occSetTrustedDomainsCmd = concatStringsSep "\n" (imap0
+            (i: v: ''
+              ${occ}/bin/nextcloud-occ config:system:set trusted_domains \
+                ${toString i} --value="${toString v}"
+            '') ([ cfg.hostName ] ++ cfg.config.extraTrustedDomains));
+
+        in {
+          wantedBy = [ "multi-user.target" ];
+          before = [ "phpfpm-nextcloud.service" ];
+          path = [ occ ];
+          script = ''
+            ${optionalString (c.dbpassFile != null) ''
+              if [ ! -r "${c.dbpassFile}" ]; then
+                echo "dbpassFile ${c.dbpassFile} is not readable by nextcloud:nextcloud! Aborting..."
+                exit 1
+              fi
+              if [ -z "$(<${c.dbpassFile})" ]; then
+                echo "dbpassFile ${c.dbpassFile} is empty!"
+                exit 1
+              fi
+            ''}
+            if [ ! -r "${c.adminpassFile}" ]; then
+              echo "adminpassFile ${c.adminpassFile} is not readable by nextcloud:nextcloud! Aborting..."
+              exit 1
+            fi
+            if [ -z "$(<${c.adminpassFile})" ]; then
+              echo "adminpassFile ${c.adminpassFile} is empty!"
+              exit 1
+            fi
+
+            ln -sf ${cfg.package}/apps ${cfg.home}/
+
+            # Install extra apps
+            ln -sfT \
+              ${pkgs.linkFarm "nix-apps"
+                (mapAttrsToList (name: path: { inherit name path; }) cfg.extraApps)} \
+              ${cfg.home}/nix-apps
+
+            # create nextcloud directories.
+            # if the directories exist already with wrong permissions, we fix that
+            for dir in ${datadir}/config ${datadir}/data ${cfg.home}/store-apps ${cfg.home}/nix-apps; do
+              if [ ! -e $dir ]; then
+                install -o nextcloud -g nextcloud -d $dir
+              elif [ $(stat -c "%G" $dir) != "nextcloud" ]; then
+                chgrp -R nextcloud $dir
+              fi
+            done
+
+            ln -sf ${overrideConfig} ${datadir}/config/override.config.php
+
+            # Do not install if already installed
+            if [[ ! -e ${datadir}/config/config.php ]]; then
+              ${occInstallCmd}
+            fi
+
+            ${occ}/bin/nextcloud-occ upgrade
+
+            ${occ}/bin/nextcloud-occ config:system:delete trusted_domains
+
+            ${optionalString (cfg.extraAppsEnable && cfg.extraApps != { }) ''
+                # Try to enable apps (don't fail when one of them cannot be enabled , eg. due to incompatible version)
+                ${occ}/bin/nextcloud-occ app:enable ${concatStringsSep " " (attrNames cfg.extraApps)}
+            ''}
+
+            ${occSetTrustedDomainsCmd}
+          '';
+          serviceConfig.Type = "oneshot";
+          serviceConfig.User = "nextcloud";
+        };
+        nextcloud-cron = {
+          environment.NEXTCLOUD_CONFIG_DIR = "${datadir}/config";
+          serviceConfig.Type = "oneshot";
+          serviceConfig.User = "nextcloud";
+          serviceConfig.ExecStart = "${phpPackage}/bin/php -f ${cfg.package}/cron.php";
+        };
+        nextcloud-update-plugins = mkIf cfg.autoUpdateApps.enable {
+          serviceConfig.Type = "oneshot";
+          serviceConfig.ExecStart = "${occ}/bin/nextcloud-occ app:update --all";
+          serviceConfig.User = "nextcloud";
+          startAt = cfg.autoUpdateApps.startAt;
+        };
+      };
+
+      services.phpfpm = {
+        pools.nextcloud = {
+          user = "nextcloud";
+          group = "nextcloud";
+          phpPackage = phpPackage;
+          phpEnv = {
+            NEXTCLOUD_CONFIG_DIR = "${datadir}/config";
+            PATH = "/run/wrappers/bin:/nix/var/nix/profiles/default/bin:/run/current-system/sw/bin:/usr/bin:/bin";
+          };
+          settings = mapAttrs (name: mkDefault) {
+            "listen.owner" = config.services.nginx.user;
+            "listen.group" = config.services.nginx.group;
+          } // cfg.poolSettings;
+          extraConfig = cfg.poolConfig;
+        };
+      };
+
+      users.users.nextcloud = {
+        home = "${cfg.home}";
+        group = "nextcloud";
+        isSystemUser = true;
+      };
+      users.groups.nextcloud.members = [ "nextcloud" config.services.nginx.user ];
+
+      environment.systemPackages = [ occ ];
+
+      services.nginx.enable = mkDefault true;
+
+      services.nginx.virtualHosts.${cfg.hostName} = {
+        root = cfg.package;
+        locations = {
+          "= /robots.txt" = {
+            priority = 100;
+            extraConfig = ''
+              allow all;
+              log_not_found off;
+              access_log off;
+            '';
+          };
+          "= /" = {
+            priority = 100;
+            extraConfig = ''
+              if ( $http_user_agent ~ ^DavClnt ) {
+                return 302 /remote.php/webdav/$is_args$args;
+              }
+            '';
+          };
+          "/" = {
+            priority = 900;
+            extraConfig = "rewrite ^ /index.php;";
+          };
+          "~ ^/store-apps" = {
+            priority = 201;
+            extraConfig = "root ${cfg.home};";
+          };
+          "~ ^/nix-apps" = {
+            priority = 201;
+            extraConfig = "root ${cfg.home};";
+          };
+          "^~ /.well-known" = {
+            priority = 210;
+            extraConfig = ''
+              absolute_redirect off;
+              location = /.well-known/carddav {
+                return 301 /remote.php/dav;
+              }
+              location = /.well-known/caldav {
+                return 301 /remote.php/dav;
+              }
+              location ~ ^/\.well-known/(?!acme-challenge|pki-validation) {
+                return 301 /index.php$request_uri;
+              }
+              try_files $uri $uri/ =404;
+            '';
+          };
+          "~ ^/(?:build|tests|config|lib|3rdparty|templates|data)(?:$|/)".extraConfig = ''
+            return 404;
+          '';
+          "~ ^/(?:\\.(?!well-known)|autotest|occ|issue|indie|db_|console)".extraConfig = ''
+            return 404;
+          '';
+          "~ ^\\/(?:index|remote|public|cron|core\\/ajax\\/update|status|ocs\\/v[12]|updater\\/.+|oc[ms]-provider\\/.+|.+\\/richdocumentscode\\/proxy)\\.php(?:$|\\/)" = {
+            priority = 500;
+            extraConfig = ''
+              include ${config.services.nginx.package}/conf/fastcgi.conf;
+              fastcgi_split_path_info ^(.+?\.php)(\\/.*)$;
+              set $path_info $fastcgi_path_info;
+              try_files $fastcgi_script_name =404;
+              fastcgi_param PATH_INFO $path_info;
+              fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
+              fastcgi_param HTTPS ${if cfg.https then "on" else "off"};
+              fastcgi_param modHeadersAvailable true;
+              fastcgi_param front_controller_active true;
+              fastcgi_pass unix:${fpm.socket};
+              fastcgi_intercept_errors on;
+              fastcgi_request_buffering off;
+              fastcgi_read_timeout 120s;
+            '';
+          };
+          "~ \\.(?:css|js|woff2?|svg|gif|map)$".extraConfig = ''
+            try_files $uri /index.php$request_uri;
+            expires 6M;
+            access_log off;
+          '';
+          "~ ^\\/(?:updater|ocs-provider|ocm-provider)(?:$|\\/)".extraConfig = ''
+            try_files $uri/ =404;
+            index index.php;
+          '';
+          "~ \\.(?:png|html|ttf|ico|jpg|jpeg|bcmap|mp4|webm)$".extraConfig = ''
+            try_files $uri /index.php$request_uri;
+            access_log off;
+          '';
+        };
+        extraConfig = ''
+          index index.php index.html /index.php$request_uri;
+          ${optionalString (cfg.nginx.recommendedHttpHeaders) ''
+            add_header X-Content-Type-Options nosniff;
+            add_header X-XSS-Protection "1; mode=block";
+            add_header X-Robots-Tag none;
+            add_header X-Download-Options noopen;
+            add_header X-Permitted-Cross-Domain-Policies none;
+            add_header X-Frame-Options sameorigin;
+            add_header Referrer-Policy no-referrer;
+            add_header Strict-Transport-Security "max-age=15552000; includeSubDomains" always;
+          ''}
+          client_max_body_size ${cfg.maxUploadSize};
+          fastcgi_buffers 64 4K;
+          fastcgi_hide_header X-Powered-By;
+          gzip on;
+          gzip_vary on;
+          gzip_comp_level 4;
+          gzip_min_length 256;
+          gzip_proxied expired no-cache no-store private no_last_modified no_etag auth;
+          gzip_types application/atom+xml application/javascript application/json application/ld+json application/manifest+json application/rss+xml application/vnd.geo+json application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/bmp image/svg+xml image/x-icon text/cache-manifest text/css text/plain text/vcard text/vnd.rim.location.xloc text/vtt text/x-component text/x-cross-domain-policy;
+
+          ${optionalString cfg.webfinger ''
+            rewrite ^/.well-known/host-meta /public.php?service=host-meta last;
+            rewrite ^/.well-known/host-meta.json /public.php?service=host-meta-json last;
+          ''}
+        '';
+      };
+    }
+  ]);
+
+  meta.doc = ./nextcloud.xml;
+}