diff --git a/instances/templates/instances/settings_tab.html b/instances/templates/instances/settings_tab.html
index e8a12997..4f213508 100644
--- a/instances/templates/instances/settings_tab.html
+++ b/instances/templates/instances/settings_tab.html
@@ -359,14 +359,16 @@
diff --git a/instances/tests/test_change_network.py b/instances/tests/test_change_network.py
index 0e5cbae1..8bcca934 100644
--- a/instances/tests/test_change_network.py
+++ b/instances/tests/test_change_network.py
@@ -34,6 +34,10 @@ class ChangeNetworkViewTestCase(TestCase):
})
change.assert_called_once_with("52:54:00:00:00:02", "52:54:00:00:00:03", "default", "net", "e1000", "")
+ def test_no_source_keeps_the_nics_own(self):
+ change = self.post({"net-old-mac-1": "52:54:00:00:00:02", "net-source-1": "", "net-model-1": "e1000"})
+ change.assert_called_once_with("52:54:00:00:00:02", "52:54:00:00:00:02", None, None, "e1000", "")
+
def test_a_shut_off_vm_is_told_the_change_is_made(self):
with patch("instances.models.wvmInstance") as wvm:
wvm.return_value.get_status.return_value = 5
diff --git a/instances/tests/test_pending_edits.py b/instances/tests/test_pending_edits.py
index b118784d..62d4a817 100644
--- a/instances/tests/test_pending_edits.py
+++ b/instances/tests/test_pending_edits.py
@@ -93,10 +93,16 @@ class PendingEditsTestCase(TestCase):
# the Edit dialog picks the source by kind and posts it as before
(source,) = doc.xpath("//select[@name='net-source-0']")
self.assertEqual(source.xpath("./optgroup/@label"), ["Networks", "Interfaces"])
- self.assertEqual(source.xpath(".//option/@value"), ["net:default", "net:isolated", "iface:br0"])
- self.assertEqual(source.xpath(".//option[@selected]/@value"), ["net:default"])
+ self.assertEqual(source.xpath(".//option/@value"), ["", "net:default", "net:isolated", "iface:br0"])
+ # the NIC keeps its source unless another is chosen
+ self.assertEqual(source.xpath(".//option[@selected]/text()"), ["default, as it is"])
self.assertEqual(doc.xpath("//div[@id='editInstanceNetwork0']//input[@name='net-old-mac-0']/@value"), [nic["mac"]])
self.assertTrue(doc.xpath("//div[@id='editInstanceNetwork0']//button[@name='change_network']"))
+ # so does one the host's lists do not show, or one whose name is in both
+ doc = self.page(nics=([{**nic, "type": "bridge", "nic": "br0"}],) * 2,
+ get_networks=(["br0"],) * 2, get_ifaces=(["br0"],) * 2)
+ (source,) = doc.xpath("//select[@name='net-source-0']")
+ self.assertEqual(source.xpath(".//option[@selected]/@value"), [""])
def test_the_disks_are_rows_of_one_list(self):
disks = [disk("vda", "default", "") | {"used": 1 << 29}, disk("vdb", "default", "") | {"used": (1 << 30) + (1 << 20)}]
diff --git a/instances/views.py b/instances/views.py
index 7b7a6bc4..f7a0b927 100755
--- a/instances/views.py
+++ b/instances/views.py
@@ -1856,7 +1856,9 @@ def change_network(request, pk):
messages.error(request, err)
return redirect(back)
- (source, source_type) = utils.get_network_tuple(request.POST.get(f"net-source-{num}", ""))
+ # no source: the NIC keeps the one it has, which the host's lists may not show
+ raw_source = request.POST.get(f"net-source-{num}", "")
+ (source, source_type) = utils.get_network_tuple(raw_source) if raw_source else (None, None)
try:
with audit_vm(request, instance, f"change interface {old_mac}"):
if source_type == "iface":
diff --git a/vrtManager/instance.py b/vrtManager/instance.py
index 99aeea86..d84eaa53 100644
--- a/vrtManager/instance.py
+++ b/vrtManager/instance.py
@@ -2706,7 +2706,8 @@ class wvmInstance(wvmConnect):
"""Edit the NIC with old_mac in the persistent definition, in place.
Settings this form does not edit (QoS, link state, driver, PCI address)
- stay. A running VM gets the change at its next start.
+ stay, and so does the source when source is None. A running VM gets
+ the change at its next start.
"""
tree = etree.fromstring(self._XMLDesc(PERSISTENT_XML))
found = tree.xpath("./devices/interface[mac/@address=$mac]", mac=old_mac)
@@ -2716,14 +2717,15 @@ class wvmInstance(wvmConnect):
if iface.get("type") == "hostdev":
raise util.OperationError("A network interface that is a host device is changed in the XML editor")
- iface_type = {"net": "network", "bridge": "bridge"}.get(source_type, "direct")
- iface.set("type", iface_type)
- for old_source in iface.findall("source"):
- iface.remove(old_source)
- source_attrs = {"network": {"network": source}, "bridge": {"bridge": source}}.get(
- iface_type, {"dev": source, "mode": "bridge"}
- )
- iface.insert(1, etree.Element("source", **source_attrs))
+ if source is not None:
+ iface_type = {"net": "network", "bridge": "bridge"}.get(source_type, "direct")
+ iface.set("type", iface_type)
+ for old_source in iface.findall("source"):
+ iface.remove(old_source)
+ source_attrs = {"network": {"network": source}, "bridge": {"bridge": source}}.get(
+ iface_type, {"dev": source, "mode": "bridge"}
+ )
+ iface.insert(1, etree.Element("source", **source_attrs))
iface.find("mac").set("address", mac)
for old_model in iface.findall("model"):
diff --git a/vrtManager/tests/test_change_network.py b/vrtManager/tests/test_change_network.py
index 025f48ca..10621558 100644
--- a/vrtManager/tests/test_change_network.py
+++ b/vrtManager/tests/test_change_network.py
@@ -14,6 +14,7 @@ DOMAIN_XML = """
+
"""
@@ -34,7 +35,7 @@ class TestChangeNetwork(unittest.TestCase):
inst.change_network("52:54:00:00:00:02", "52:54:00:00:00:03", "br0", "bridge", "e1000", "clean-traffic")
defined = etree.fromstring(inst.wvm.defineXML.call_args[0][0])
- first, second = defined.findall("devices/interface")
+ first, second, _direct = defined.findall("devices/interface")
self.assertEqual(first.find("mac").get("address"), "52:54:00:00:00:01")
self.assertEqual(second.get("type"), "bridge")
self.assertEqual(second.find("mac").get("address"), "52:54:00:00:00:03")
@@ -46,6 +47,18 @@ class TestChangeNetwork(unittest.TestCase):
self.assertEqual(second.find("link").get("state"), "down")
self.assertEqual(second.find("address").get("bus"), "0x02")
+ def defined_nic(self, *args):
+ from lxml import etree
+
+ inst = stopped_instance()
+ inst.change_network(*args)
+ return etree.fromstring(inst.wvm.defineXML.call_args[0][0]).findall("devices/interface")[2]
+
+ def test_no_source_keeps_the_one_the_nic_has(self):
+ nic = self.defined_nic("52:54:00:00:00:04", "52:54:00:00:00:04", None, None, "e1000", "")
+ self.assertEqual((nic.get("type"), nic.find("source").attrib), ("direct", {"dev": "eth0", "mode": "vepa"}))
+ self.assertEqual(nic.find("model").get("type"), "e1000")
+
def test_unknown_old_mac_changes_nothing(self):
inst = stopped_instance()
with self.assertRaises(libvirtError):