wip: add julia server with wordpress

hosts/ext-julia/wordpress.nix

@@ -0,0 +1,116 @@
+{
+  config,
+  pkgs,
+  siteName ? "example-name",
+  sitePort ? 80,
+  ...
+}: let
+  siteDataDir = "/srv/http/${siteName}";
+  siteUser = "user-${siteName}";
+  siteGroup = config.services.nginx.user;
+  siteUserPhp = "${siteUser}-php";
+  siteGroupPhp = siteUserPhp;
+  sitePhpPool = "wordpress-${siteName}";
+in {
+  users = {
+    users = {
+      "${siteUser}" = {
+        isSystemUser = true;
+        group = siteGroup;
+        home = siteDataDir;
+        createHome = false;
+        shell = "${pkgs.shadow}/bin/nologin";
+      };
+
+      ### 3) Service account for PHP-FPM pool
+      "${siteUserPhp}" = {
+        isSystemUser = true;
+        group = siteGroupPhp;
+        home = "/var/empty";
+        createHome = false;
+        shell = "${pkgs.shadow}/bin/nologin";
+      };
+    };
+
+    groups = {
+      "${siteGroup}" = {};
+      "${siteGroupPhp}" = {};
+    };
+  };
+
+  services = {
+    mysql = {
+      enable = true;
+      package = pkgs.mariadb;
+    };
+
+    phpfpm.pools."${sitePhpPool}" = {
+      user = siteUserPhp;
+      group = siteGroupPhp;
+
+      settings = {
+        # Socket ownership so Nginx can connect
+        "listen.owner" = config.services.nginx.user;
+        "listen.group" = siteGroupPhp;
+        "listen.mode" = "0660";
+
+        # Dynamic process management tuned for small sites
+        pm = "dynamic";
+        "pm.max_children" = "5";
+        "pm.start_servers" = "2";
+        "pm.min_spare_servers" = "1";
+        "pm.max_spare_servers" = "3";
+
+        # Logging
+        "catch_workers_output" = true;
+        "php_admin_flag[log_errors]" = true;
+      };
+    };
+
+    nginx = {
+      enable = true;
+      virtualHosts."${siteName}" = {
+        default = true;
+        root = siteDataDir;
+
+        listen = [
+          {
+            addr = "0.0.0.0";
+            port = sitePort;
+            ssl = false;
+          }
+        ];
+
+        # Fallback for pretty permalinks
+        locations."/" = {
+          tryFiles = "$uri $uri/ /index.php?$args";
+        };
+        extraConfig = ''
+          index index.php;
+        '';
+
+        # 6.2 Handle PHP scripts
+        locations."~ \\.php$" = {
+          extraConfig = ''
+            fastcgi_split_path_info ^(.+\\.php)(/.+)$;
+            fastcgi_pass          unix:${config.services.phpfpm.pools."${sitePhpPool}".socket};
+            fastcgi_index         index.php;
+            fastcgi_param         SCRIPT_FILENAME $document_root$fastcgi_script_name;
+            include               ${pkgs.nginx}/conf/fastcgi_params;
+          '';
+        };
+      };
+    };
+  };
+
+  # Bootstrap WordPress on activation
+  environment.systemPackages = [pkgs.unzip];
+  system.activationScripts."setupWordpress-${siteName}".text = ''
+    mkdir -p ${siteDataDir}
+    if [ ! -f ${siteDataDir}/wp-config.php ]; then
+      cp -R ${pkgs.wordpress}/share/wordpress/* ${siteDataDir}/
+      chown -R ${siteUser}:${siteGroup} ${siteDataDir}
+      chmod -R 755 ${siteDataDir}
+    fi
+  '';
+}