This adds a variable for requiring MSC3231 token for registration

roles/matrix-synapse/defaults/main.yml

@@ -210,6 +210,11 @@ matrix_synapse_enable_registration_captcha: false
 matrix_synapse_recaptcha_public_key: ''
 matrix_synapse_recaptcha_private_key: ''
 
+# Requires an MSC3231 token for registration. Note that `matrix_synapse_enable_registration` must be set to `true`.
+# Tokens can be created via the API or through synapse-admin.
+# Disabling this option will not delete any tokens previously generated.
+matrix_synapse_registration_requires_token: false
+
 # Allows non-server-admin users to create groups on this server
 matrix_synapse_enable_group_creation: false
 

roles/matrix-synapse/templates/synapse/homeserver.yaml.j2

@@ -1373,7 +1373,9 @@ allowed_local_3pids: {{ matrix_synapse_allowed_local_3pids|to_json }}
 # Disabling this option will not delete any tokens previously generated.
 # Defaults to false. Uncomment the following to require tokens:
 #
-#registration_requires_token: true
+registration_requires_token: {{ matrix_synapse_registration_requires_token|to_json }}
+
+
 
 # If set, allows registration of standard or admin accounts by anyone who
 # has the shared secret, even if registration is otherwise disabled.