Configparser does some interpolations by default

They interfere with wildcards passed to wireguard, so disabling it.

api/wireguard.py

@@ -86,7 +86,7 @@ def generate_user_clientside_config(client_ip: str,
                                     server_port: int,
                                     server_pubkey: str,
                                     fragment_file: Path=None):
-    config = ConfigParser()
+    config = ConfigParser(interpolation=None)
     config['Interface'] = {
         'Address': f'{client_ip}/32',
         'PrivateKey': client_privkey
@@ -97,7 +97,7 @@ def generate_user_clientside_config(client_ip: str,
         'PublicKey': server_pubkey
     }
     if fragment_file:
-        fragment = ConfigParser()
+        fragment = ConfigParser(interpolation=None)
         fragment.read(fragment_file)
         for section, contents in fragment.items():
             for key, value in contents.items():
@@ -197,14 +197,14 @@ class WireGuard:
         return self.filepath(f'{config_id}{metasuffix}')
 
     def generate_server_config(self):
-        config = ConfigParser()
+        config = ConfigParser(interpolation=None)
         config['Interface'] = {
             'Address': self.server_address,
             'ListenPort': self.server_port,
             'PrivateKey': self.server_privkey
         }
         if self.server_config_base:
-            fragment = ConfigParser()
+            fragment = ConfigParser(interpolation=None)
             fragment.read(self.server_config_base)
             for key, value in fragment['Interface'].items():
                 config['Interface'][key] = value