mirror of
https://github.com/retspen/webvirtcloud
synced 2026-11-08 19:26:48 +00:00
5a523befbd
Migration is client-driven: libvirt sends the VM's memory to the destination's own host name unless a migration URI is given, and the app never gave one. Where the hosts cannot resolve each other's names (or the names point at a management network) every migration failed with "Unable to resolve address '<host name>' service '49152'". A compute now has an optional migration address (an IP address or a host name, no scheme or port), editable in the compute form and the API. A VM migrating to that compute is sent to tcp://<address> (bracketed for IPv6). Empty, the default for existing computes, keeps the previous behavior. The compute's host name is not reused, because for SSH computes it can be an ssh_config alias. The migration log entry names the address when one is set.
60 lines
1.8 KiB
Python
60 lines
1.8 KiB
Python
"""Migration flags: the source definition never stays behind."""
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import unittest
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import libvirt
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from django.conf import settings
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if not settings.configured:
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settings.configure(MAC_OUI="52:54:10")
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from vrtManager.instance import wvmInstances
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class FakeDomain:
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def __init__(self):
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self.calls = []
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def migrate(self, dconn, flags, dname, uri, bandwidth):
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self.calls.append((flags, uri))
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class FakeSource:
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def __init__(self, state):
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self.state = state
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self.instance = FakeDomain()
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def get_status(self):
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return self.state
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def get_arch(self):
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return "x86_64"
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def get_dom_emulator(self):
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return "/usr/bin/qemu-system-x86_64"
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def destination():
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dest = wvmInstances.__new__(wvmInstances)
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dest.wvm = object()
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dest.get_emulator = lambda arch: "/usr/bin/qemu-system-x86_64"
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return dest
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class MigrationFlagsTestCase(unittest.TestCase):
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def test_the_source_definition_is_always_removed(self):
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for state, live, offline in ((1, True, False), (5, False, True)):
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with self.subTest(state=state):
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source = FakeSource(state)
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destination().moveto(source, "vm", live=live, unsafe=False, offline=offline)
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flags = source.instance.calls[0][0]
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self.assertTrue(flags & libvirt.VIR_MIGRATE_UNDEFINE_SOURCE)
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self.assertTrue(flags & libvirt.VIR_MIGRATE_PERSIST_DEST)
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def test_the_migration_uri_is_passed_on(self):
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source = FakeSource(1)
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destination().moveto(source, "vm", live=True, unsafe=False, offline=False, uri="tcp://192.0.2.12")
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self.assertEqual(source.instance.calls[0][1], "tcp://192.0.2.12")
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source = FakeSource(1)
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destination().moveto(source, "vm", live=True, unsafe=False, offline=False)
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self.assertIsNone(source.instance.calls[0][1])
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