Use Local Salt client to populate DNS

salt-unbound-dns.py

#!/usr/bin/env python
"""
Fetch all IPv6 addresses of Minions and generate local
unbound data based on the output
"""

import json
import salt.client
import salt.output.json_out
local = salt.client.LocalClient()

ret = local.cmd('*', 'grains.get', ['ipv6:0'])

for host, addr in ret.items():
    print("local-data: \"%s. 1h IN AAAA %s\"" % (host, addr))
    print("local-data-ptr: \"%s 1h %s.\"" % (addr, host))