add support for alias records

defaults/main.yml

@@ -7,11 +7,13 @@ powerdns:
     "config-dir": /etc/powerdns
     "daemon": "yes"
     "default-ttl": 3600
+    "expand-alias": "yes"
     "guardian": "yes"
     "include-dir": "/etc/powerdns/pdns.d"
     "launch":
       bind: {}
     "master": "no"
+    "resolver": 127.0.0.1
     "reuseport": "yes"
     "setgid": pdns
     "setuid": pdns