Migrate matrix-synapse to clan services

clanServices/matrix-synapse/nginx.nix

@@ -0,0 +1,48 @@
+{
+  config,
+  lib,
+  ...
+}:
+{
+  security.acme.acceptTerms = true;
+
+  networking.firewall.allowedTCPPorts = [
+    443
+    80
+  ];
+
+  services.nginx = {
+    enable = true;
+
+    statusPage = lib.mkDefault true;
+    recommendedBrotliSettings = lib.mkDefault true;
+    recommendedGzipSettings = lib.mkDefault true;
+    recommendedOptimisation = lib.mkDefault true;
+    recommendedProxySettings = lib.mkDefault true;
+    recommendedTlsSettings = lib.mkDefault true;
+
+    # Nginx sends all the access logs to /var/log/nginx/access.log by default.
+    # instead of going to the journal!
+    commonHttpConfig = "access_log syslog:server=unix:/dev/log;";
+
+    resolver.addresses =
+      let
+        isIPv6 = addr: builtins.match ".*:.*:.*" addr != null;
+        escapeIPv6 = addr: if isIPv6 addr then "[${addr}]" else addr;
+        cloudflare = [
+          "1.1.1.1"
+          "2606:4700:4700::1111"
+        ];
+        resolvers =
+          if config.networking.nameservers == [ ] then cloudflare else config.networking.nameservers;
+      in
+      map escapeIPv6 resolvers;
+
+    sslDhparam = config.security.dhparams.params.nginx.path;
+  };
+
+  security.dhparams = {
+    enable = true;
+    params.nginx = { };
+  };
+}