use modular config

configuration.nix

@@ -4,15 +4,13 @@
 
 { config, pkgs, ... }:
 
-let
+{
-  fqdn =
-    let
-      join = hostName: domain: hostName + ".${domain}";
-    in join config.networking.hostName config.networking.domain;
-in {
   imports =
     [ # Include the results of the hardware scan.
       ./hardware-configuration.nix
+      ./nextcloud.nix
+      ./matrix-synapse.nix
+      ./nginx.nix
     ];
 
   # Boot
@@ -27,16 +25,14 @@ in {
   # Enable additional firmware (such as Wi-Fi drivers).
   hardware.enableRedistributableFirmware = true;
 
-  networking.hostName = "bib3"; # Define your hostname.
+  networking.hostName = "levitest"; # Define your hostname.
-  networking.domain = "de";
-  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
 
   # The global useDHCP flag is deprecated, therefore explicitly set to false here.
   # Per-interface useDHCP will be mandatory in the future, so this generated config
   # replicates the default behaviour.
   networking.useDHCP = false;
   networking.interfaces.eth0.useDHCP = true;
-  networking.interfaces.wlan0.useDHCP = true;
+
 
   security.acme.email = "webmaster@bib3.de";
   security.acme.acceptTerms = true;
@@ -66,23 +62,6 @@ in {
   services.openssh.enable = true;
   networking.firewall.allowedTCPPorts = [ 22 80 443 ];
 
-  services.postgresql = {
-    enable = true;
-    ensureDatabases = [ "nextcloud" ];
-    ensureUsers = [
-      { name = "nextcloud";
-        ensurePermissions."DATABASE nextcloud" = "ALL PRIVILEGES";
-      }
-    ];
-    initialScript = pkgs.writeText "synapse-init.sql" ''
-      CREATE ROLE "matrix-synapse" WITH LOGIN PASSWORD 'synapse';
-      CREATE DATABASE "matrix-synapse" WITH OWNER "matrix-synapse"
-        TEMPLATE template0
-        LC_COLLATE = "C"
-        LC_CTYPE = "C";
-    '';
-  };
-
   services.nginx = {
     enable = true;
     # only recommendedProxySettings and recommendedGzipSettings are strictly required,
@@ -96,97 +75,9 @@ in {
       "default_server" = {
         root = "/var/www/default"; 
       };
-
-      # This host section can be placed on a different host than the rest,
-      # i.e. to delegate from the host being accessible as ${config.networking.domain}
-      # to another host actually running the Matrix homeserver.
-      "${config.networking.domain}" = {
-        locations."= /.well-known/matrix/server".extraConfig =
-          let
-            # use 443 instead of the default 8448 port to unite
-            # the client-server and server-server port for simplicity
-            server = { "m.server" = "${fqdn}:443"; };
-          in ''
-            add_header Content-Type application/json;
-            return 200 '${builtins.toJSON server}';
-          '';
-        locations."= /.well-known/matrix/client".extraConfig =
-          let
-            client = {
-              "m.homeserver" =  { "base_url" = "https://${fqdn}"; };
-              "m.identity_server" =  { "base_url" = "https://vector.im"; };
-            };
-          # ACAO required to allow element-web on any URL to request this json file
-          in ''
-            add_header Content-Type application/json;
-            add_header Access-Control-Allow-Origin *;
-            return 200 '${builtins.toJSON client}';
-          '';
-      };
-
-      # Reverse proxy for Matrix client-server and server-server communication
-      ${fqdn} = {
-        enableACME = true;
-        forceSSL = true;
-
-        # Or do a redirect instead of the 404, or whatever is appropriate for you.
-        # But do not put a Matrix Web client here! See the Element web section below.
-        locations."/".extraConfig = ''
-          return 404;
-        '';
-
-        # forward all Matrix API calls to the synapse Matrix homeserver
-        locations."/_matrix" = {
-          proxyPass = "http://[::1]:8008"; # without a trailing /
-        };
-      };
-
-      "nextcloud.${fqdn}" = {
-        forceSSL = true;
-        enableACME = true;
-      };
     };
   };
 
-  services.matrix-synapse = {
-    enable = true;
-    server_name = config.networking.domain;
-    listeners = [
-      {
-        port = 8008;
-        bind_address = "::1";
-        type = "http";
-        tls = false;
-        x_forwarded = true;
-        resources = [
-          {
-            names = [ "client" "federation" ];
-            compress = false;
-          }
-        ];
-      }
-    ];
-  };
-
-  services.nextcloud = {
-    enable = true;
-    hostName = "nextcloud." + fqdn;
-    nginx.enable = true;
-    config = {
-      dbtype = "pgsql";
-      dbuser = "nextcloud";
-      dbhost = "/run/postgresql";
-      dbname = "nextcloud";
-      adminpassFile = "/var/lib/nextcloud/config/adminpass";
-      adminuser = "root";
-    };
-  };
-
-  systemd.services."nextcloud-setup" = {
-    requires = [ "postgresql.service" ];
-    after = [ "postgresql.service" ];
-  };
-
   # Define a user account. Don't forget to set a password with ‘passwd’.
   users.users.loooph = {
     isNormalUser = true;

matrix-synapse.nix

@@ -0,0 +1,58 @@
+{ config, pkgs, ... }:
+
+let
+  fqdn = "matrix.bib3.de";
+in {
+  networking.firewall.allowedTCPPorts = [ 80 443 ];
+
+  services.postgresql = {
+    enable = true;
+    initialScript = pkgs.writeText "synapse-init.sql" ''
+      CREATE ROLE "matrix-synapse" WITH LOGIN PASSWORD 'synapse';
+      CREATE DATABASE "matrix-synapse" WITH OWNER "matrix-synapse"
+        TEMPLATE template0
+        LC_COLLATE = "C"
+        LC_CTYPE = "C";
+    '';
+  };
+  
+  services.nginx = {
+    enable = true;
+    recommendedTlsSettings = true;
+    recommendedOptimisation = true;
+    recommendedGzipSettings = true;
+    recommendedProxySettings = true;
+
+    virtualHosts.${fqdn} = {
+      enableACME = true;
+      forceSSL = true;
+      locations."/".extraConfig = ''
+        return 404;
+      '';
+
+      locations."/_matrix" = {
+        proxyPass = "http://[::1]:8008";
+      };
+    };
+  };
+
+  services.matrix-synapse = {
+    enable = true;
+    server_name = fqdn;
+    listeners = [
+      {
+        port = 8008;
+        bind_address = "::1";
+        type = "http";
+        tls = false;
+        x_forwarded = true;
+        resources = [
+          {
+            names = [ "client" "federation" ];
+            compress = false;
+          }
+        ];
+      }
+    ];
+  };
+}

nextcloud.nix

@@ -0,0 +1,51 @@
+{config, pkgs, ...}:
+let
+  fqdn = "nextcloud.bib3.de";
+in {
+  services.nginx = {
+    enable = true;
+    
+    recommendedGzipSettings = true;
+    recommendedOptimisation = true;
+    recommendedProxySettings = true;
+    recommendedTlsSettings = true;
+
+    sslCiphers = "AES256+EECDH:AES256+EDH:!aNULL";
+
+    virtualHosts.${fqdn} = {
+      forceSSL = true;
+      enableACME = true;
+    };
+  };
+
+  services.nextcloud = {
+    enable = true;
+    hostName = fqdn;
+    nginx.enable = true;
+    config = {
+      dbtype = "pgsql";
+      dbuser = "nextcloud";
+      dbhost = "/run/postgresql";
+      dbname = "nextcloud";
+      adminpassFile = "/var/lib/nextcloud/config/adminpass";
+      adminuser = "root";
+    };
+  };  
+
+  systemd.services."nextcloud-setup" = {
+    requires = [ "postgresql.service" ];
+    after =  [ "postgresql.service" ];
+  };
+
+  services.postgresql = {
+    enable = true;
+    ensureDatabases = [ "nextcloud" ];
+    ensureUsers = [
+      {
+        name = "nextcloud";
+        ensurePermissions."DATABASE nextcloud" = "ALL PRIVILEGES";
+      }
+    ];
+  };
+
+}

nginx.nix

@@ -0,0 +1,23 @@
+{ config, pkgs, ... }:
+
+let
+  fqdn = "bib3.de";
+in
+{
+  services.nginx = {
+    enable = true;
+    recommendedTlsSettings = true;
+    recommendedOptimisation = true;
+    recommendedGzipSettings = true;
+    recommendedProxySettings = true;
+
+    virtualHosts = {
+      ${fqdn} = {
+        forceSSL=true;
+        enableACME=true;
+        root = "/var/www/default"; 
+      };
+    };
+  };
+}
+