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-rw-r--r--openstackclient/network/v2/subnet.py14
-rw-r--r--openstackclient/tests/unit/network/v2/test_subnet.py8
2 files changed, 20 insertions, 2 deletions
diff --git a/openstackclient/network/v2/subnet.py b/openstackclient/network/v2/subnet.py
index eda92948..5366dff6 100644
--- a/openstackclient/network/v2/subnet.py
+++ b/openstackclient/network/v2/subnet.py
@@ -84,6 +84,15 @@ def _get_common_parse_arguments(parser, is_create=True):
help=_("DNS server for this subnet "
"(repeat option to set multiple DNS servers)")
)
+
+ if not is_create:
+ parser.add_argument(
+ '--no-dns-nameservers',
+ action='store_true',
+ help=_("Clear existing information of DNS Nameservers. "
+ "Specify both --dns-nameserver and --no-dns-nameserver "
+ "to overwrite the current DNS Nameserver information.")
+ )
parser.add_argument(
'--host-route',
metavar='destination=<subnet>,gateway=<ip-address>',
@@ -532,7 +541,10 @@ class SetSubnet(command.Command):
attrs = _get_attrs(self.app.client_manager, parsed_args,
is_create=False)
if 'dns_nameservers' in attrs:
- attrs['dns_nameservers'] += obj.dns_nameservers
+ if not parsed_args.no_dns_nameservers:
+ attrs['dns_nameservers'] += obj.dns_nameservers
+ elif parsed_args.no_dns_nameservers:
+ attrs['dns_nameservers'] = []
if 'host_routes' in attrs:
if not parsed_args.no_host_route:
attrs['host_routes'] += obj.host_routes
diff --git a/openstackclient/tests/unit/network/v2/test_subnet.py b/openstackclient/tests/unit/network/v2/test_subnet.py
index 2d51aa4a..e7406575 100644
--- a/openstackclient/tests/unit/network/v2/test_subnet.py
+++ b/openstackclient/tests/unit/network/v2/test_subnet.py
@@ -925,13 +925,16 @@ class TestSetSubnet(TestSubnet):
{'host_routes': [{'destination': '10.20.20.0/24',
'nexthop': '10.20.20.1'}],
'allocation_pools': [{'start': '8.8.8.200',
- 'end': '8.8.8.250'}], })
+ 'end': '8.8.8.250'}],
+ 'dns_nameservers': ["10.0.0.1"], })
self.network.find_subnet = mock.Mock(return_value=_testsubnet)
arglist = [
'--host-route', 'destination=10.30.30.30/24,gateway=10.30.30.1',
'--no-host-route',
'--allocation-pool', 'start=8.8.8.100,end=8.8.8.150',
'--no-allocation-pool',
+ '--dns-nameserver', '10.1.10.1',
+ '--no-dns-nameservers',
_testsubnet.name,
]
verifylist = [
@@ -939,6 +942,8 @@ class TestSetSubnet(TestSubnet):
"destination": "10.30.30.30/24", "gateway": "10.30.30.1"}]),
('allocation_pools', [{
'start': '8.8.8.100', 'end': '8.8.8.150'}]),
+ ('dns_nameservers', ['10.1.10.1']),
+ ('no_dns_nameservers', True),
('no_host_route', True),
('no_allocation_pool', True),
]
@@ -948,6 +953,7 @@ class TestSetSubnet(TestSubnet):
'host_routes': [{
"destination": "10.30.30.30/24", "nexthop": "10.30.30.1"}],
'allocation_pools': [{'start': '8.8.8.100', 'end': '8.8.8.150'}],
+ 'dns_nameservers': ["10.1.10.1"],
}
self.network.update_subnet.assert_called_once_with(
_testsubnet, **attrs)