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https://github.com/retspen/webvirtcloud
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42a1783178
Disk sizes were pre-filled rounded to whole GiB, so a 3.5 GiB disk showed 4 and was grown, for good, whenever another disk was resized; an empty field or a disk outside a pool was a 500. A disk's field is now empty with its size as the placeholder: an empty field leaves the disk alone, a larger whole number grows it, anything else is refused with a message. vCPUs change only on a shut-off VM, also on a direct request: a running VM got them at its next start, past the quota counted against its live count. Current vCPUs or memory above the maximum are refused instead of failing (and dropping vCPU hot-plug) or being capped by libvirt. A running VM's maximum memory select is disabled, since its maximum is kept, and a custom memory value is sent only while its box is ticked.
78 lines
4.1 KiB
Python
78 lines
4.1 KiB
Python
"""The Resize tab changes only what was asked, and refuses what libvirt would
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not apply as asked."""
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from unittest.mock import patch
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from accounts.models import UserInstance
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from appsettings.settings import get_settings
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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 libvirt import VIR_DOMAIN_RUNNING
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GIB = 1 << 30
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class ResizeInputTests(TestCase):
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def setUp(self):
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get_settings()
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self.user = get_user_model().objects.create_user("resize-user", password="pw")
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self.client.force_login(self.user)
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compute = Compute.objects.create(name="rs", hostname="192.0.2.1", login="u", password="p", type=1)
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self.vm = Instance.objects.create(compute=compute, name="rs-vm", uuid="13131313-0000-0000-0000-000000000000")
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UserInstance.objects.create(user=self.user, instance=self.vm, is_change=True)
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def post(self, view, data, status=5, disks=()):
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with patch("instances.views.utils.check_user_quota", return_value=""), patch(
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"instances.models.wvmInstance"
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) as wvm:
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proxy = wvm.return_value
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proxy.get_vcpu.return_value = 2
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proxy.get_memory.return_value = 2048
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proxy.get_cur_memory.return_value = 2048
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proxy.get_status.return_value = status
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proxy.instance.isActive.return_value = status != 5
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proxy.get_disk_devices.return_value = [dict(disk) for disk in disks]
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response = self.client.post(reverse(view, args=[self.vm.id]), data)
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self.assertEqual(response.status_code, 302)
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return [str(m) for m in get_messages(response.wsgi_request)], proxy
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def test_only_a_disk_given_a_larger_size_grows(self):
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# a 3.5 GiB disk left as it was is not grown; a disk outside a pool has no size
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disks = [{"dev": "vda", "size": 3 * GIB + GIB // 2}, {"dev": "vdb", "size": 20 * GIB}, {"dev": "vdc", "size": None}]
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messages, proxy = self.post("instances:resize_disk", {"disk_size_vda": "", "disk_size_vdb": "30"}, disks=disks)
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proxy.resize_disk.assert_called_once()
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self.assertEqual([(d["dev"], d["size_new"]) for d in proxy.resize_disk.call_args.args[0]], [("vdb", 30 * GIB)])
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self.assertEqual(messages, ["Disk is resized: vdb"])
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def test_a_disk_size_that_is_not_a_whole_number_is_refused(self):
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messages, proxy = self.post("instances:resize_disk", {"disk_size_vda": "4.5"}, disks=[{"dev": "vda", "size": GIB}])
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proxy.resize_disk.assert_not_called()
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self.assertEqual(messages, ["Enter disk sizes as whole GiB"])
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def test_vcpus_change_only_on_a_shut_off_vm(self):
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messages, proxy = self.post("instances:resizevm_cpu", {"vcpu": "4", "cur_vcpu": "4"}, status=VIR_DOMAIN_RUNNING)
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proxy.resize_cpu.assert_not_called()
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self.assertEqual(messages, ["Shut off the VM to change its vCPUs"])
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def test_current_vcpus_above_the_maximum_are_refused(self):
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messages, proxy = self.post("instances:resizevm_cpu", {"vcpu": "2", "cur_vcpu": "4"})
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proxy.resize_cpu.assert_not_called()
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self.assertEqual(messages, ["The current vCPUs cannot be more than the maximum"])
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def test_current_memory_above_the_maximum_is_refused(self):
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messages, proxy = self.post("instances:resize_memory", {"memory": "4096", "cur_memory": "8192"})
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proxy.resize_mem.assert_not_called()
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self.assertEqual(messages, ["The current memory cannot be more than the maximum"])
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def test_a_running_vm_offers_no_maximum_memory(self):
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with patch("instances.models.wvmInstance"):
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self.vm.__dict__["status"] = VIR_DOMAIN_RUNNING
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from django.template.loader import render_to_string
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html = render_to_string("instances/resize_tab.html", {"instance": self.vm, "can_change": True,
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"memory_range": [1024, 2048]})
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self.assertRegex(html, r'<select name="memory" class="form-select js-custom__toggle" disabled>')
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self.assertNotIn('name="memory_custom"', html)
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