Rename services directory to common

common/nginx.nix

@@ -0,0 +1,33 @@
+{ config, lib, pkgs, ... }:
+
+{
+  services.nginx = {
+    enable = true;
+
+    recommendedGzipSettings = true;
+    recommendedOptimisation = true;
+    recommendedProxySettings = true;
+    recommendedTlsSettings = true;
+
+    sslCiphers = "AES256+EECDH:AES256+EDH:!aNULL";
+
+    appendHttpConfig = ''
+      map $scheme $hsts_header {
+          https   "max-age=31536000; includeSubdomains; preload";
+      }
+      add_header Strict-Transport-Security $hsts_header;
+      #add_header Content-Security-Policy "script-src 'self'; object-src 'none'; base-uri 'none';" always;
+      add_header 'Referrer-Policy' 'strict-origin-when-cross-origin';
+      add_header X-Frame-Options SAMEORIGIN;
+      add_header X-Content-Type-Options nosniff;
+      proxy_cookie_path / "/; secure; HttpOnly; SameSite=strict";
+    '';
+  };
+
+  security.acme = {
+    acceptTerms = true;
+    defaults.email = "accounts@katherina.rocks"; # TODO: replace with more appropriate email
+  };
+
+  networking.firewall.allowedTCPPorts = [ 80 443 ];
+}