--- a/dns.py	Sat Jan 15 17:10:10 2022 -0800
+++ b/dns.py	Sun Jan 16 12:12:21 2022 -0800
@@ -1,16 +1,45 @@
+import subprocess
+import tempfile
+
+import requests
 from pyinfra import host
 from pyinfra.operations import apt, files, server, systemd
 
+
+def prepare_dhcp_hosts():
+    lanscape_ip = subprocess.check_output([
+        'kubectl',
+        'get',
+        'svc',
+        '--field-selector=metadata.name=lanscape',
+        "-o=jsonpath={.items[0].spec.clusterIP}",
+    ],
+                                          encoding='ascii')
+    url = f'http://{lanscape_ip}/dnsConfig'
+    resp = requests.get(url)
+    resp.raise_for_status()
+    lanscape_config = resp.json()
+
+    dhcp_hosts = tempfile.NamedTemporaryFile(mode='wt', encoding='ascii')
+    dhcp_hosts.write("# written by pyinfra\n\n")
+    for row in lanscape_config['dhcp_table']:
+        dhcp_hosts.write(f'{row["mac"]},{row["hostname"]},{row["ip"]},infinite\n')
+    dhcp_hosts.flush()
+    return dhcp_hosts
+
+
 if host.name == 'bang':
     apt.packages(packages=['dnsmasq'])
     systemd.service(service='dnsmasq', enabled=False, running=False)
     files.directory(path='/opt/dnsmasq')
 
+    dhcp_hosts = prepare_dhcp_hosts()
+
     for net_name in ['10.1', '10.2', '10.5']:
         files.directory(path=f'/opt/dnsmasq/{net_name}')
         files.template(src='templates/dnsmasq/dnsmasq.conf.j2', dest=f'/opt/dnsmasq/{net_name}/dnsmasq.conf', net=net_name)
         files.template(src='templates/dnsmasq/hosts.j2', dest=f'/opt/dnsmasq/{net_name}/hosts', net=net_name)
-        files.template(src='templates/dnsmasq/dhcp_hosts.j2', dest=f'/opt/dnsmasq/{net_name}/dhcp_hosts', net=net_name)
+        files.template(src=dhcp_hosts.name, dest=f'/opt/dnsmasq/{net_name}/dhcp_hosts', net=net_name)
 
         files.template(src='templates/dnsmasq/dnsmasq.service.j2',
                        dest=f'/etc/systemd/system/dnsmasq_{net_name}.service',