98 lines
3.4 KiB
Python
Executable File
98 lines
3.4 KiB
Python
Executable File
#!/usr/bin/env python3
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# group: migration
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#
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# Copyright (c) 2021 Virtuozzo International GmbH
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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import os
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import iotests
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from iotests import qemu_img_create, qemu_io
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disk_a = os.path.join(iotests.test_dir, 'disk_a')
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disk_b = os.path.join(iotests.test_dir, 'disk_b')
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size = '1M'
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mig_file = os.path.join(iotests.test_dir, 'mig_file')
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mig_cmd = 'exec: cat > ' + mig_file
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class TestMigrateDuringBackup(iotests.QMPTestCase):
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def tearDown(self):
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self.vm.shutdown()
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os.remove(disk_a)
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os.remove(disk_b)
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os.remove(mig_file)
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def setUp(self):
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qemu_img_create('-f', iotests.imgfmt, disk_a, size)
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qemu_img_create('-f', iotests.imgfmt, disk_b, size)
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qemu_io('-c', f'write 0 {size}', disk_a)
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self.vm = iotests.VM().add_drive(disk_a)
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self.vm.launch()
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result = self.vm.qmp('blockdev-add', {
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'node-name': 'target',
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'driver': iotests.imgfmt,
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'file': {
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'driver': 'file',
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'filename': disk_b
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}
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})
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self.assert_qmp(result, 'return', {})
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def test_migrate(self):
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result = self.vm.qmp('blockdev-backup', device='drive0',
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target='target', sync='full',
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speed=1, x_perf={
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'max-workers': 1,
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'max-chunk': 64 * 1024
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})
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self.assert_qmp(result, 'return', {})
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result = self.vm.qmp('job-pause', id='drive0')
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self.assert_qmp(result, 'return', {})
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result = self.vm.qmp('migrate-set-capabilities',
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capabilities=[{'capability': 'events',
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'state': True}])
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self.assert_qmp(result, 'return', {})
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result = self.vm.qmp('migrate', uri=mig_cmd)
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self.assert_qmp(result, 'return', {})
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e = self.vm.events_wait((('MIGRATION',
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{'data': {'status': 'completed'}}),
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('MIGRATION',
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{'data': {'status': 'failed'}})))
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# Don't assert that e is 'failed' now: this way we'll miss
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# possible crash when backup continues :)
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result = self.vm.qmp('block-job-set-speed', device='drive0',
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speed=0)
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self.assert_qmp(result, 'return', {})
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result = self.vm.qmp('job-resume', id='drive0')
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self.assert_qmp(result, 'return', {})
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# For future: if something changes so that both migration
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# and backup pass, let's not miss that moment, as it may
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# be a bug as well as improvement.
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self.assert_qmp(e, 'data/status', 'failed')
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if __name__ == '__main__':
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iotests.main(supported_fmts=['qcow2'],
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supported_protocols=['file'])
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