mirror of
https://github.com/retspen/webvirtcloud
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80dd145bcf
- The Host devices tab gives a shut-off VM a PCI device of its host and takes it back; libvirt binds the device to vfio-pci when the VM starts and gives it back when it stops (managed). The VM's PCI devices are listed with whether the running VM and its next start have them. - A device is offered, and accepted on the server under the compute's claim, only when it is no bridge of any kind (bridge header, PCIe port, or of the bridge class: host bridge, LPC), the host has none of its own network interfaces, disks or graphics card on it (else: bind it to vfio-pci on the host first), no other VM names it, and every other endpoint of its IOMMU group is the VM's too or has no driver or vfio-pci and no other VM; bridges in the group stay with pcieport, and a member that cannot be read keeps the group. Nothing in the group is taken implicitly. - A snapshot revert checks the PCI devices of the snapshot with the same rules; migration and clones already leave host devices out. - The add forms of the tab load together, when the tab opens.
148 lines
9.5 KiB
Python
148 lines
9.5 KiB
Python
"""On an active VM an edit changes the persistent definition and is pending
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until the next start. The edit forms show that definition, so a save does
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not post the running VM's value back over a pending change."""
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from unittest.mock import PropertyMock, patch
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from computes.models import Compute
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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 instances.models import Instance
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from lxml import html
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from vrtManager import util
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def disk(dev, cache, serial):
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return {
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"dev": dev, "bus": "virtio", "image": f"{dev}.qcow2", "storage": "default", "path": f"/pool/{dev}.qcow2",
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"format": "qcow2", "backing_file": None, "size": 1 << 30, "used": 1 << 20, "cache": cache, "io": "default",
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"discard": "default", "detect_zeroes": "default", "readonly": False, "shareable": False, "serial": serial,
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}
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class PendingEditsTestCase(TestCase):
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def setUp(self):
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self.client.force_login(get_user_model().objects.create_superuser("pe-admin", "pe@example.com", "x"))
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compute = Compute.objects.create(name="pe", hostname="127.0.0.1:1", login="root", password="", type=1)
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self.instance = Instance.objects.create(compute=compute, name="pe-vm", uuid="aaaaaaaa-1111-2222-3333-444444444444")
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def page(self, live=(), config=(), qos=({}, {}), status=1, **getters):
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"""live and config: disks; qos and getters (get_vcpu=(2, 4)): values of
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the live and the persistent definition."""
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with patch("instances.models.wvmInstance") as wvm, patch.object(
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Compute, "status", new_callable=PropertyMock, return_value=True
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):
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proxy = wvm.return_value
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proxy.get_status.return_value = status
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proxy.get_memory.return_value = proxy.get_cur_memory.return_value = 1024
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proxy.get_max_memory.return_value = 4096
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getters = {"get_vcpu": (1, 1), "get_cur_vcpu": (1, 1), "get_title": ("", ""),
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"get_description": ("", ""), **getters}
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for getter, values in getters.items():
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getattr(proxy, getter).side_effect = lambda config=False, values=values: values[config]
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proxy.get_max_cpus.return_value = [1, 2, 3, 4]
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proxy.get_vcpus.return_value = {}
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for getter in ("get_networks", "get_ifaces", "get_storages", "get_media_devices", "get_net_devices",
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"get_snapshot", "get_snapshot_jobs"):
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getattr(proxy, getter).return_value = []
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proxy.get_hostdevs.return_value = ([], [], [])
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proxy.get_disk_devices.side_effect = lambda **kw: config if kw.get("config") else live
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proxy.get_all_qos.side_effect = lambda **kw: qos[1] if kw.get("config") else qos[0]
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proxy.get_console_type.return_value = "vnc"
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proxy.get_video_models.return_value = ["vga", "virtio"]
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proxy.get_cache_modes.return_value = {"default": "Default", "none": "Disabled"}
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response = self.client.get(reverse("instances:instance", args=[self.instance.id]))
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self.assertEqual(response.status_code, 200)
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return html.fromstring(response.content)
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def test_the_disk_edit_form_shows_the_pending_definition(self):
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# running: cache=none and a new disk vdb pending, vda's serial live only
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doc = self.page(
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live=[disk("vda", "default", "live-serial")],
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config=[disk("vda", "none", ""), disk("vdb", "default", "")],
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)
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forms = doc.xpath("//form[@action=$a]", a=reverse("instances:edit_volume", args=[self.instance.id]))
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self.assertEqual([f.xpath("string(.//input[@name='dev']/@value)") for f in forms], ["vda", "vdb"])
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vda = forms[0]
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self.assertEqual(vda.xpath(".//select[@name='vol_cache']/option[@selected]/@value"), ["none"])
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self.assertEqual(vda.xpath("string(.//input[@name='vol_serial']/@value)"), "")
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def test_the_qos_form_shows_the_pending_definition(self):
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mac = "52:54:10:00:00:01"
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inbound = {"direction": "inbound", "average": "500", "peak": "0", "burst": "0", "floor": None}
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doc = self.page(qos=({mac: [inbound]}, {mac: [{**inbound, "average": "1000"}, {**inbound, "direction": "outbound"}]}))
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self.assertEqual(doc.xpath("//input[@name='qos_average']/@value"), ["1000", "500"])
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# the pending outbound has a row
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self.assertEqual([" ".join(t.split()) for t in doc.xpath("//label[@class='col-form-label']/text()")],
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[f"{mac} Inbound", f"{mac} Outbound"])
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def test_a_disk_with_a_pending_source_is_not_deleted(self):
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# running: vda is A, its definition for the next start uses B
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with patch("instances.models.wvmInstance") as wvm, patch("instances.views.wvmStorage") as storage:
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proxy = wvm.return_value
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live, pending = disk("vda", "default", ""), {**disk("vda", "default", ""), "path": "/pool/b.qcow2"}
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proxy.get_disk_devices.side_effect = lambda **kw: [pending] if kw.get("config") else [live]
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self.client.post(reverse("instances:delete_vol", args=[self.instance.id]), {"dev": "vda"})
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proxy.detach_disk.assert_not_called()
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storage.return_value.del_volume.assert_not_called()
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def test_the_options_and_cpu_forms_show_the_pending_definition(self):
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doc = self.page(get_vcpu=(2, 4), get_cur_vcpu=(1, 3), get_title=("old", "new"),
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get_description=("live text", "pending text"))
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self.assertEqual(doc.xpath("//input[@name='title']/@value"), ["new"])
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self.assertEqual(doc.xpath("//textarea[@name='description']/text()"), ["pending text"])
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self.assertEqual(doc.xpath("//select[@name='vcpu']/option[@selected]/@value"), ["4"])
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self.assertEqual(doc.xpath("//select[@name='cur_vcpu']/option[@selected]/@value"), ["3"])
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def test_buttons_shown_as_disabled_cannot_submit(self):
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# running: the CPU, options and video forms wait for a shutdown
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doc = self.page(live=[disk("vda", "default", "")], config=[disk("vda", "default", "")])
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shown = doc.xpath("//button[contains(concat(' ', @class, ' '), ' disabled ')]")
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self.assertGreater(len(shown), 5)
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self.assertEqual([b for b in shown if b.get("disabled") is None], [])
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for action in ("resizevm_cpu", "change_options", "set_video_model", "detach_vol", "delete_vol"):
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with self.subTest(action):
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(form,) = doc.xpath("//form[@action=$a]", a=reverse(f"instances:{action}", args=[self.instance.id]))
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self.assertTrue(all(b.get("disabled") is not None for b in form.xpath(".//button")))
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def test_the_xml_editor_shows_the_definition_for_the_next_start(self):
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# static/js/xml_editor.js opens the review dialog on Change, also while the VM runs
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for status in (5, 1):
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with self.subTest(status=status):
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doc = self.page(status=status)
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(button,) = doc.xpath("//form[@id='xml-form']//button[@type='submit']")
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self.assertIsNone(button.get("disabled"))
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self.assertEqual(len(doc.xpath("//div[@id='xml-review']//button[@id='xml-review-save']")), 1)
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self.assertEqual(bool(doc.xpath("//p[@id='xml-next-start']")), status != 5)
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def test_the_boot_video_and_console_forms_show_the_pending_definition(self):
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cd = {"dev": "sda", "image": "pending.iso", "storage": "default", "path": "/pool/pending.iso", "bus": "sata"}
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with patch("instances.models.Instance.config_networks", new_callable=PropertyMock, return_value=[]):
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doc = self.page(
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live=[disk("vda", "default", "")], config=[disk("vda", "default", ""), disk("vdb", "default", "")],
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get_bootmenu=(False, True), get_bootorder=({}, {0: {"type": "file", "dev": "cdrom", "target": "sda"}}),
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get_media_devices=([], [cd]), get_video_model=("vga", "virtio"),
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get_console_listener_addr=("127.0.0.1", "0.0.0.0"), get_console_keymap=("", "de"),
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get_console_passwd=("live-pw", "pending-pw"),
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)
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(boot,) = doc.xpath("//form[@action=$a]", a=reverse("instances:set_bootorder", args=[self.instance.id]))
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self.assertEqual(boot.xpath(".//input[@type='checkbox']/@value"), ["disk:vda", "disk:vdb", "cdrom:sda"])
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self.assertIn("1:sda", doc.xpath("string(//div[label[contains(., ':')]])"))
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self.assertEqual(doc.xpath("//select[@name='video_model']/option[@selected]/@value"), ["virtio"])
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self.assertEqual(doc.xpath("//select[@name='keymap']/option[@selected]/@value"), ["de"])
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self.assertEqual(doc.xpath("//select[@name='listen_on']/option[@selected]/@value"), ["0.0.0.0"])
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self.assertEqual(doc.xpath("//input[@name='password']/@value"), ["pending-pw"])
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def test_a_boot_order_choice_not_in_the_definition_is_refused(self):
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with patch("instances.models.wvmInstance") as wvm:
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wvm.return_value.set_bootorder.side_effect = util.OperationError("Boot device vdz is not in the definition")
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response = self.client.post(reverse("instances:set_bootorder", args=[self.instance.id]),
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{"bootorder": "disk:vda,disk:vdz"})
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self.assertEqual([str(m) for m in get_messages(response.wsgi_request)], ["Boot device vdz is not in the definition"])
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def test_an_active_vm_says_its_settings_apply_at_the_next_start(self):
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for status, shown in ((1, True), (3, True), (5, False)):
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with self.subTest(status=status):
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self.assertEqual(bool(self.page(status=status).xpath("//p[@id='next-start-note']")), shown)
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