Migrate from Synapse to Dendrite

modules/communication.nix

@@ -1,41 +1,79 @@
 { config, lib, pkgs, ... }:
 
-{
+with pkgs;
+
+# NOTE Reference the environment variable set in the corresponding agenix secret
+let database.connection_string = "$DB_STRING";
+
+in {
   # Matrix server configuration
-  services.matrix-synapse = {
+  services.dendrite = {
     enable = true;
+    httpPort = 8008;
+    environmentFile = config.age.secrets.dendrite-postgres.path;
+    loadCredential = [ "private_key:${config.age.secrets.dendrite.path}" ];
     settings = {
-      server_name = "coolneng.duckdns.org";
-      public_baseurl = "https://matrix.coolneng.duckdns.org";
-      listeners = [{
-        port = 8008;
-        tls = false;
-        resources = [{
-          compress = true;
-          names = [ "client" ];
-        }];
-        bind_addresses = [ "127.0.0.1" ];
-      }];
-      app_service_config_files =
-        [ "/var/lib/matrix-synapse/telegram-registration.yaml" ];
+      global = {
+        server_name = "coolneng.duckdns.org";
+        private_key = config.age.secrets.dendrite.path;
+        inherit database;
+      };
+      # HACK Inherit postgres connection string for the rest of the DBs
+      app_service_api = { inherit database; };
+      media_api = { inherit database; };
+      room_server = { inherit database; };
+      push_server = { inherit database; };
+      mscs = {
+        inherit database;
+        mscs = [ "msc2836" "msc2946" ];
+      };
+      sync_api = { inherit database; };
+      key_server = { inherit database; };
+      federation_api = { inherit database; };
+      user_api = {
+        account_database = database;
+        device_database = database;
+      };
     };
   };
 
-  # Telegram bridge for Matrix
-  services.mautrix-telegram = {
-    enable = true;
-    environmentFile = /var/lib/mautrix-telegram/telegram.env;
-    settings = {
-      homeserver = {
-        address = "https://matrix.coolneng.duckdns.org";
-        domain = "coolneng.duckdns.org";
-      };
-      appservice = {
-        address = "http://localhost:8118";
+  # Matrix bridges
+  services.matrix-appservices = {
+    homeserver = "dendrite";
+    addRegistrationFiles = true;
+    services = {
+      telegram = {
         port = 8118;
+        format = "mautrix-python";
+        package = mautrix-telegram;
+      };
+      facebook = {
+        port = 8228;
+        format = "mautrix-python";
+        package = mautrix-facebook;
+      };
+      signal = {
+        port = 8338;
+        format = "mautrix-python";
+        package = mautrix-signal;
+        serviceConfig = {
+          StateDirectory = [ "matrix-as-signal" "signald" ];
+          JoinNamespaceOf = "signald.service";
+          SupplementaryGroups = [ "signald" ];
+        };
+        settings.signal = {
+          socket_path = config.services.signald.socketPath;
+          outgoing_attachment_dir = "/var/lib/signald/tmp";
+        };
       };
-      bridge.permissions."@coolneng:coolneng.duckdns.org" = "admin";
     };
-    serviceDependencies = [ "matrix-synapse.service" ];
   };
+
+  # Additional settings for mautrix-signal
+  services.signald.enable = true;
+  systemd.services.matrix-as-signal = {
+    requires = [ "signald.service" ];
+    after = [ "signald.service" ];
+  };
+
 }