Add dns domain to deployment

This permits the deployment profiles
to pull in specified DNS domain.

confluent_server/confluent/config/attributes.py

@@ -491,6 +491,9 @@ node = {
         'description': ('Fingerprint of the SSH key of the OS running on the '
                         'system.'),
     },
+    'dns.domain': {
+        'description': 'DNS Domain searched by default by the system'
+    },
     'dns.servers': {
         'description': 'DNS Server or servers to provide to node',
     },

confluent_server/confluent/selfservice.py

@@ -64,7 +64,7 @@ def handle_request(env, start_response):
             ncfg['ipv4_netmask'] = netutil.cidr_to_mask(ncfg['prefix'])
         deployinfo = cfg.get_node_attributes(
             nodename, ('deployment.*', 'console.method', 'crypted.rootpassword',
-                       'services.*'))
+                       'dns.*'))
         deployinfo = deployinfo.get(nodename, {})
         profile = deployinfo.get(
             'deployment.pendingprofile', {}).get('value', '')
@@ -117,6 +117,8 @@ def handle_request(env, start_response):
         for dns in deployinfo.get(
                 'dns.servers', {}).get('value', '').split(','):
             ncfg['nameservers'].append(dns)
+        dnsdomain = dedployinfo.get('dns.domain', {}).get('value', None)
+        ncfg['dnsdomain'] = dnsdomain
         start_response('200 OK', (('Content-Type', retype),))
         yield dumper(ncfg)
     elif env['PATH_INFO'] == '/self/sshcert':