move integration to yaml, add new derp configuration

integration_test/etc/config.json

@@ -1,19 +0,0 @@
-{
-  "server_url": "http://headscale:8080",
-  "listen_addr": "0.0.0.0:8080",
-  "private_key_path": "private.key",
-  "derp_map_path": "derp.yaml",
-  "ephemeral_node_inactivity_timeout": "30m",
-  "db_type": "sqlite3",
-  "db_path": "/tmp/integration_test_db.sqlite3",
-  "acl_policy_path": "",
-  "log_level": "trace",
-  "dns_config": {
-    "nameservers": [
-      "1.1.1.1"
-    ],
-    "domains": [],
-    "magic_dns": true,
-    "base_domain": "headscale.net"
-  }
-}

integration_test/etc/config.yaml

@@ -0,0 +1,20 @@
+log_level: trace
+acl_policy_path: ""
+db_type: sqlite3
+ephemeral_node_inactivity_timeout: 30m
+dns_config:
+  base_domain: headscale.net
+  magic_dns: true
+  domains: []
+  nameservers:
+    - 1.1.1.1
+db_path: /tmp/integration_test_db.sqlite3
+private_key_path: private.key
+listen_addr: 0.0.0.0:8080
+server_url: http://headscale:8080
+
+derp:
+  urls:
+    - https://controlplane.tailscale.com/derpmap/default
+  auto_update_enabled: false
+  update_frequency: 1m