bvm-prosody: configure prosody

ops/nixos/bvm-prosody/default.nix

@@ -2,7 +2,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
-{ depot, ... }:
+{ config, depot, pkgs, ... }:
 let
   inherit (depot.ops) secrets;
   machineSecrets = secrets.machineSpecific.bvm-prosody;
@@ -25,6 +25,9 @@ in {
     };
     defaultGateway = { address = "92.118.28.1"; interface = "enp6s0"; };
     defaultGateway6 = { address = "2a09:a441::1"; interface = "enp6s0"; };
+
+    firewall.allowedUDPPorts = [ 3478 ];
+    firewall.allowedTCPPorts = [ 80 443 3478 5280 5281 5222 5223 5269 5298 ];
   };
   my.ip.tailscale = "100.86.22.44";
 
@@ -33,6 +36,68 @@ in {
     use-auth-secret = true;
     realm = "turn.lukegb.com";
     static-auth-secret = machineSecrets.turnSecret;
+    cert = "${config.security.acme.certs."turn.lukegb.com".directory}/fullchain.pem";
+    pkey = "${config.security.acme.certs."turn.lukegb.com".directory}/key.pem";
+  };
+
+  services.prosody = {
+    enable = true;
+    admins = [ "admin@lukegb.com" "lukegb@lukegb.com" ];
+    package = pkgs.prosody.override {
+      withCommunityModules = [ "external_services" ];
+    };
+
+    virtualHosts."lukegb.com" = {
+      enabled = true;
+      domain = "lukegb.com";
+      ssl.cert = "${config.security.acme.certs."xmpp.lukegb.com".directory}/fullchain.pem";
+      ssl.key = "${config.security.acme.certs."xmpp.lukegb.com".directory}/key.pem";
+    };
+    muc = [{
+      domain = "muc.xmpp.lukegb.com";
+    }];
+    uploadHttp.domain = "upload.xmpp.lukegb.com";
+
+    extraConfig = ''
+      proxy65_address = "xmpp.lukegb.com"
+      proxy65_acl = { "lukegb.com" }
+
+      component_ports = { 5347 }
+      component_interface = { "127.0.0.1", "::1" }
+
+      legacy_ssl_ports = { 5223 }
+
+      external_services = {
+              {
+                      type = "stun",
+                      transport = "udp",
+                      host = "turn.lukegb.com",
+                      port = 3478,
+              }, {
+                      type = "turn",
+                      transport = "udp",
+                      host = "turn.lukegb.com",
+                      port = 3478,
+                      secret = "${machineSecrets.turnSecret}",
+              }
+      }
+    '';
+  };
+
+  security.acme = {
+    acceptTerms = true;
+    email = "letsencrypt@lukegb.com";
+    certs."xmpp.lukegb.com" = {
+      group = "prosody";
+      dnsProvider = "cloudflare";
+      credentialsFile = secrets.cloudflareCredentials;
+      extraDomainNames = [ "*.xmpp.lukegb.com" "lukegb.com" ];
+    };
+    certs."turn.lukegb.com" = {
+      group = "turnserver";
+      dnsProvider = "cloudflare";
+      credentialsFile = secrets.cloudflareCredentials;
+    };
   };
 
   system.stateVersion = "21.05";