nixos/mediawiki: make apache optional

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

@@ -8,7 +8,8 @@ let
   cfg = config.services.mediawiki;
   fpm = config.services.phpfpm.pools.mediawiki;
   user = "mediawiki";
-  group = config.services.httpd.group;
+  group = if cfg.webserver == "apache" then "apache" else "mediawiki";
+
   cacheDir = "/var/cache/mediawiki";
   stateDir = "/var/lib/mediawiki";
 
@@ -73,7 +74,7 @@ let
       $wgScriptPath = "";
 
       ## The protocol and server name to use in fully-qualified URLs
-      $wgServer = "${if cfg.httpd.virtualHost.addSSL || cfg.httpd.virtualHost.forceSSL || cfg.httpd.virtualHost.onlySSL then "https" else "http"}://${cfg.httpd.virtualHost.hostName}";
+      $wgServer = "${cfg.url}";
 
       ## The URL path to static resources (images, scripts, etc.)
       $wgResourceBasePath = $wgScriptPath;
@@ -87,7 +88,7 @@ let
       $wgEnableEmail = true;
       $wgEnableUserEmail = true; # UPO
 
-      $wgPasswordSender = "${if cfg.httpd.virtualHost.adminAddr != null then cfg.httpd.virtualHost.adminAddr else config.services.httpd.adminAddr}";
+      $wgPasswordSender = "${cfg.passwordSender}";
 
       $wgEnotifUserTalk = false; # UPO
       $wgEnotifWatchlist = false; # UPO
@@ -196,6 +197,22 @@ in
         description = lib.mdDoc "Name of the wiki.";
       };
 
+      url = mkOption {
+        type = types.str;
+        default = if cfg.webserver == "apache" then
+            "${if cfg.httpd.virtualHost.addSSL || cfg.httpd.virtualHost.forceSSL || cfg.httpd.virtualHost.onlySSL then "https" else "http"}://${cfg.httpd.virtualHost.hostName}"
+          else
+            "http://localhost";
+        defaultText = literalExpression ''
+          if cfg.webserver == "apache" then
+            "''${if cfg.httpd.virtualHost.addSSL || cfg.httpd.virtualHost.forceSSL || cfg.httpd.virtualHost.onlySSL then "https" else "http"}://''${cfg.httpd.virtualHost.hostName}"
+          else
+            "http://localhost";
+        '';
+        example = "https://wiki.example.org";
+        description = lib.mdDoc "URL of the wiki.";
+      };
+
       uploadsDir = mkOption {
         type = types.nullOr types.path;
         default = "${stateDir}/uploads";
@@ -211,6 +228,24 @@ in
         example = "/run/keys/mediawiki-password";
       };
 
+      passwordSender = mkOption {
+        type = types.str;
+        default =
+          if cfg.webserver == "apache" then
+            if cfg.httpd.virtualHost.adminAddr != null then
+              cfg.httpd.virtualHost.adminAddr
+            else
+              config.services.httpd.adminAddr else "root@localhost";
+        defaultText = literalExpression ''
+          if cfg.webserver == "apache" then
+            if cfg.httpd.virtualHost.adminAddr != null then
+              cfg.httpd.virtualHost.adminAddr
+            else
+              config.services.httpd.adminAddr else "root@localhost"
+        '';
+        description = lib.mdDoc "Contact address for password reset.";
+      };
+
       skins = mkOption {
         default = {};
         type = types.attrsOf types.path;
@@ -240,6 +275,12 @@ in
         '';
       };
 
+      webserver = mkOption {
+        type = types.enum [ "apache" "none" ];
+        default = "apache";
+        description = lib.mdDoc "Webserver to use.";
+      };
+
       database = {
         type = mkOption {
           type = types.enum [ "mysql" "postgres" "sqlite" "mssql" "oracle" ];
@@ -415,36 +456,42 @@ in
     services.phpfpm.pools.mediawiki = {
       inherit user group;
       phpEnv.MEDIAWIKI_CONFIG = "${mediawikiConfig}";
-      settings = {
+      settings = (if (cfg.webserver == "apache") then {
         "listen.owner" = config.services.httpd.user;
         "listen.group" = config.services.httpd.group;
-      } // cfg.poolConfig;
+      } else {
+        "listen.owner" = user;
+        "listen.group" = group;
+      }) // cfg.poolConfig;
     };
 
-    services.httpd = {
+    services.httpd = lib.mkIf (cfg.webserver == "apache") {
       enable = true;
       extraModules = [ "proxy_fcgi" ];
-      virtualHosts.${cfg.httpd.virtualHost.hostName} = mkMerge [ cfg.httpd.virtualHost {
-        documentRoot = mkForce "${pkg}/share/mediawiki";
-        extraConfig = ''
-          <Directory "${pkg}/share/mediawiki">
-            <FilesMatch "\.php$">
-              <If "-f %{REQUEST_FILENAME}">
-                SetHandler "proxy:unix:${fpm.socket}|fcgi://localhost/"
-              </If>
-            </FilesMatch>
+      virtualHosts.${cfg.httpd.virtualHost.hostName} = mkMerge [
+        cfg.httpd.virtualHost
+        {
+          documentRoot = mkForce "${pkg}/share/mediawiki";
+          extraConfig = ''
+            <Directory "${pkg}/share/mediawiki">
+              <FilesMatch "\.php$">
+                <If "-f %{REQUEST_FILENAME}">
+                  SetHandler "proxy:unix:${fpm.socket}|fcgi://localhost/"
+                </If>
+              </FilesMatch>
 
-            Require all granted
-            DirectoryIndex index.php
-            AllowOverride All
-          </Directory>
-        '' + optionalString (cfg.uploadsDir != null) ''
-          Alias "/images" "${cfg.uploadsDir}"
-          <Directory "${cfg.uploadsDir}">
-            Require all granted
-          </Directory>
-        '';
-      } ];
+              Require all granted
+              DirectoryIndex index.php
+              AllowOverride All
+            </Directory>
+          '' + optionalString (cfg.uploadsDir != null) ''
+            Alias "/images" "${cfg.uploadsDir}"
+            <Directory "${cfg.uploadsDir}">
+              Require all granted
+            </Directory>
+          '';
+        }
+      ];
     };
 
     systemd.tmpfiles.rules = [
@@ -492,13 +539,14 @@ in
       };
     };
 
-    systemd.services.httpd.after = optional (cfg.database.createLocally && cfg.database.type == "mysql") "mysql.service"
-      ++ optional (cfg.database.createLocally && cfg.database.type == "postgres") "postgresql.service";
+    systemd.services.httpd.after = optional (cfg.webserver == "apache" && cfg.database.createLocally && cfg.database.type == "mysql") "mysql.service"
+      ++ optional (cfg.webserver == "apache" && cfg.database.createLocally && cfg.database.type == "postgres") "postgresql.service";
 
     users.users.${user} = {
       group = group;
       isSystemUser = true;
     };
+    users.groups.${group} = {};
 
     environment.systemPackages = [ mediawikiScripts ];
   };

nixos/tests/mediawiki.nix

@@ -54,4 +54,15 @@ in
       assert "MediaWiki has been installed" in page
     '';
   };
+
+  nohttpd = testLib.makeTest {
+    name = "mediawiki-nohttpd";
+    nodes.machine = {
+      services.mediawiki.webserver = "none";
+    };
+    testScript = ''
+      start_all()
+      machine.wait_for_unit("phpfpm-mediawiki.service")
+    '';
+  };
 }