mirror of
https://github.com/retspen/webvirtcloud
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74483fc5f3
libvirt takes the same disk file or MAC twice in a persistent definition. A double click or a resent request then attached an existing volume twice, and a shut-off VM did not start again (QEMU opens no file twice for writing), or added a second NIC with the MAC the form had filled in. Attaching a volume that is already a disk of the VM, live or in its next start, and adding a NIC with a MAC the VM has are now refused with the reason.
62 lines
3.1 KiB
Python
62 lines
3.1 KiB
Python
"""A device form sent twice (a double click, a resent request) adds the
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device once: libvirt takes the same disk file or MAC twice in the
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persistent definition."""
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from unittest.mock import MagicMock, patch
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from django.contrib.auth import get_user_model
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from django.contrib.messages import get_messages
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from django.test import TestCase
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from django.urls import reverse
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from computes.models import Compute
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from instances.models import Instance
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PATH = "/var/lib/libvirt/images/data.qcow2"
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MAC = "52:54:00:aa:bb:cc"
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class DuplicateDeviceTests(TestCase):
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def setUp(self):
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self.client.force_login(get_user_model().objects.create_superuser("dup-admin", "d@example.com", "pw"))
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compute = Compute.objects.create(name="dup-c", hostname="192.0.2.40", login="root", password="", type=1)
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self.vm = Instance.objects.create(compute=compute, name="dup-vm", uuid="12121212-0000-1111-2222-333333333333")
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self.proxy = MagicMock()
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self.proxy.get_disk_devices.return_value = []
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self.proxy.get_media_devices.return_value = []
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self.proxy.get_net_devices.return_value = []
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self.proxy.get_disk_bus_types.return_value = ["virtio"]
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self.proxy.get_cache_modes.return_value = {"default": "Default"}
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patcher = patch("instances.models.wvmInstance", return_value=self.proxy)
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patcher.start()
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self.addCleanup(patcher.stop)
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def post(self, name, data):
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response = self.client.post(reverse(f"instances:{name}", args=[self.vm.pk]), data)
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return [str(m) for m in get_messages(response.wsgi_request)]
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@patch("instances.views.wvmStorage")
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def test_a_disk_of_the_vm_is_not_attached_again(self, storage):
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pool = storage.return_value
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pool.get_volumes.return_value = ["data.qcow2"]
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pool.get_type.return_value = "dir"
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pool.get_volume_format_type.return_value = "qcow2"
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pool.get_volume_type.return_value = "file"
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pool.get_volume.return_value.path.return_value = PATH
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form = {"selected_storage": "default", "vols": "data.qcow2", "bus": "virtio", "cache": "default"}
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self.post("add_existing_vol", form)
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self.proxy.attach_disk.assert_called_once()
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# the first attach is in the persistent definition only (a shut-off VM)
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self.proxy.get_disk_devices.side_effect = lambda config=False: [{"path": PATH, "dev": "vdb"}] if config else []
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self.assertEqual(self.post("add_existing_vol", form), ["data.qcow2 is already a disk of this VM"])
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self.proxy.attach_disk.assert_called_once()
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def test_a_nic_with_the_mac_of_another_is_not_added(self):
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form = {"add-net-network": "net:default", "add-net-mac": MAC, "add-net-model": "virtio"}
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self.post("add_network", form)
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self.proxy.add_network.assert_called_once()
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self.proxy.get_net_devices.side_effect = lambda config=False: [{"mac": MAC}] if config else []
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form["add-net-mac"] = MAC.upper()
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self.assertEqual(self.post("add_network", form),
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[f"The VM already has a network device with MAC {MAC.upper()}"])
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self.proxy.add_network.assert_called_once()
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