Add support for to disable DNS setup

Controller.py

@@ -69,7 +69,9 @@ class Controller(CapybaraNetty):
             router_coroutines.append(router.add_default_dummy_interface_ip(ip=router_dummy_interface_ip))
         await asyncio.gather(*router_coroutines)
         await asyncio.gather(self.set_router_interface_tunnels())
-        await self.setup_router_dns()
+
+        if self.dns.enabled:
+            await self.setup_router_dns()
 
         self.load_pingers()
         concurrent_tasks = [

Dns.py

@@ -9,19 +9,23 @@ from CapybaraNetty import CapybaraNetty
 class Dns(CapybaraNetty):
     def __init__(self):
         super().__init__()
-        self.api = PDNSAPI(self.config["dns_pdns_api_endpoint"])
-        self.api.session.headers.update({"X-Api-Key": self.config["dns_pdns_api_key"]})
-
-        self.ptr_zone = self.api.server("localhost").zone(self.config["dns_ptr_zone"])
-        self.name_zone = self.api.server("localhost").zone(self.config["dns_name_zone"])
-
-        if self.config["dns_ptr_delete_existing"]:
-            rrsets = self.ptr_zone.rrsets
-            self.ptr_zone.update_rrsets([x for x in rrsets if x.type == "PTR"], delete=True)
-
-        if self.config["dns_name_delete_existing"]:
-            rrsets = self.name_zone.rrsets
-            self.name_zone.update_rrsets([x for x in rrsets if x.type == "A"], delete=True)
+        self.enabled = self.config["dns_enabled"]
+        if self.enabled:
+            self.api = PDNSAPI(self.config["dns_pdns_api_endpoint"])
+            self.api.session.headers.update({"X-Api-Key": self.config["dns_pdns_api_key"]})
+
+            self.ptr_zone = self.api.server("localhost").zone(self.config["dns_ptr_zone"])
+            self.name_zone = self.api.server("localhost").zone(self.config["dns_name_zone"])
+
+            if self.config["dns_ptr_delete_existing"]:
+                rrsets = self.ptr_zone.rrsets
+                self.ptr_zone.update_rrsets([x for x in rrsets if x.type == "PTR"], delete=True)
+
+            if self.config["dns_name_delete_existing"]:
+                rrsets = self.name_zone.rrsets
+                self.name_zone.update_rrsets([x for x in rrsets if x.type == "A"], delete=True)
+        else:
+            self.__logger.warn("DNS is disabled")
 
     def create_ptr_records(self, records: list[dict[str, ipaddress.ip_address]]):
         # expects records=[{'name': 'x'  'ip': IPv4Address('10.88.224.0/32')}]

config_sample.yaml

@@ -44,6 +44,8 @@ controller_static_improvement_stable_time: 20
 per_host_ssh_log: false
 # Output directory for all commands ran via SSH on servers
 per_host_ssh_log_output_directory: "./out/"
+# Whether DNS creation is enabled
+dns_enabled: False
 # PowerDNS API endpoint utilized to create PTR and A records
 dns_pdns_api_endpoint: "https://username:password@my-powerdns-server.example.com/api/v1/"
 # PowerDNS API key