DNS apply configuration

dns/functions.py

@@ -0,0 +1,33 @@
+from .models import DNSSettings, StaticHost
+
+
+def generate_unbound_config():
+    dns_settings = DNSSettings.objects.get(name='dns_settings')
+    static_hosts = StaticHost.objects.all()
+    if dns_settings.dns_primary:
+        do_not_query_localhost = 'yes'
+        forward_zone = f'\nforward-zone:\n    name: "."\n    forward-addr: {dns_settings.dns_primary}\n'
+        if dns_settings.dns_secondary:
+            forward_zone += f'    forward-addr: {dns_settings.dns_secondary}\n'
+    else:
+        do_not_query_localhost = 'no'
+        forward_zone = ''
+
+
+    unbound_config = f'''
+server:
+    interface: 0.0.0.0
+    port: 53
+    access-control: 0.0.0.0/0 allow
+    do-ip4: yes
+    do-ip6: no
+    do-udp: yes
+    local-zone: "local." static
+    do-not-query-localhost: {do_not_query_localhost}
+    verbosity: 1
+    recursion: yes    
+'''
+    unbound_config += forward_zone
+    for static_host in static_hosts:
+        unbound_config += f'local-data: "{static_host.hostname}. IN A {static_host.ip_address}"\n'
+    return unbound_config