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fix(instances): a custom VM gets the MAC addresses its create form shows

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The custom create form shows a MAC per network (random, or typed in),
but had no mac field: the script wrote the joined list into every
name="mac" input of the page, the other six-plus forms' own MAC fields,
so a flavor form then sent one MAC per custom network and was refused,
and the custom VM got other MACs from libvirt. The custom form gets its
own hidden mac field and the script writes only there. The field took
17 characters, one MAC, so the API also refused a VM with two NICs and
their MACs; it takes 255. The serializer's test sent no submission_key,
so its check for more MACs than networks never ran; it does now, next
to the case of two networks with two MACs.
This commit is contained in:
catborise 2026-10-19 22:21:10 +03:00
parent d14a311862
commit 35468bc0fd
4 changed files with 40 additions and 11 deletions
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23
instances/tests/test_create_instance.py
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@ -157,12 +157,17 @@ class NicMacsTestCase(TestCase):
with self.subTest(mac=mac), self.assertRaises(ValueError):
nic_macs(mac, networks)
def test_api_serializer_refuses_extra_macs(self):
serializer = CreateInstanceSerializer(data={
"name": "api-vm", "vcpu": 1, "vcpu_mode": "host-model", "memory": 512,
"networks": "default", "mac": "52:54:00:00:00:01,52:54:00:00:00:02", "nwfilter": "",
"storage": "default", "hdd_size": 1, "cache_mode": "none", "meta_prealloc": False,
"virtio": True, "qemu_ga": True, "video": "vga", "listener_addr": "0.0.0.0",
})
self.assertFalse(serializer.is_valid())
self.assertIn("mac", serializer.errors)
def test_api_serializer_takes_a_mac_per_network(self):
def serializer(networks):
return CreateInstanceSerializer(data={
"name": "api-vm", "vcpu": 1, "vcpu_mode": "host-model", "memory": 512,
"networks": networks, "mac": "52:54:00:00:00:01,52:54:00:00:00:02", "nwfilter": "",
"storage": "default", "hdd_size": 1, "cache_mode": "none", "meta_prealloc": False,
"virtio": True, "qemu_ga": True, "video": "vga", "listener_addr": "0.0.0.0",
"submission_key": "test-key",
})
two_nics = serializer("default,second")
self.assertTrue(two_nics.is_valid(), two_nics.errors)
extra = serializer("default")
self.assertFalse(extra.is_valid())
self.assertEqual(extra.errors["mac"], ["More MAC addresses than networks"])