filesystem: offer autoinstall use_gap
Accept a new 'mode' parameter when using autoinstall guided storage. The default mode is 'reformat_disk', which acts as today. A new mode of 'use_gap' is available, which does not reformat the disk.
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@ -133,19 +133,20 @@ class FilesystemController(SubiquityController, FilesystemManipulator):
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"autoinstall config did not create needed bootloader "
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"partition")
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def setup_disk_for_guided(self, disk):
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self.reformat(disk, wipe='superblock-recursive')
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def setup_disk_for_guided(self, disk, mode):
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if mode is None or mode == 'reformat_disk':
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self.reformat(disk, wipe='superblock-recursive')
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if DeviceAction.TOGGLE_BOOT in DeviceAction.supported(disk):
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self.add_boot_disk(disk)
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return gaps.largest_gap(disk)
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def guided_direct(self, disk):
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gap = self.setup_disk_for_guided(disk)
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def guided_direct(self, disk, mode=None):
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gap = self.setup_disk_for_guided(disk, mode)
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spec = dict(fstype="ext4", mount="/")
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self.create_partition(device=disk, gap=gap, spec=spec)
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def guided_lvm(self, disk, lvm_options=None):
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gap = self.setup_disk_for_guided(disk)
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def guided_lvm(self, disk, mode=None, lvm_options=None):
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gap = self.setup_disk_for_guided(disk, mode)
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gap_boot, gap_rest = gap.split(sizes.get_bootfs_size(gap.size))
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spec = dict(fstype="ext4", mount='/boot')
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self.create_partition(device=disk, gap=gap_boot, spec=spec)
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@ -198,7 +199,7 @@ class FilesystemController(SubiquityController, FilesystemManipulator):
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'password': choice.password,
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},
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}
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self.guided_lvm(disk, lvm_options)
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self.guided_lvm(disk, lvm_options=lvm_options)
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else:
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self.guided_direct(disk)
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@ -459,19 +460,36 @@ class FilesystemController(SubiquityController, FilesystemManipulator):
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continue
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break
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def run_guided(self, layout):
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guided_method = getattr(self, "guided_" + layout['name'])
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mode = layout.get('mode', 'reformat_disk')
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self.validate_layout_mode(mode)
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if mode == 'reformat_disk':
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match = layout.get("match", {'size': 'largest'})
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disk = self.model.disk_for_match(self.model.all_disks(), match)
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if not disk:
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raise Exception("autoinstall cannot configure storage "
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"- no disk found large enough for install")
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elif mode == 'use_gap':
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gap = gaps.largest_gap(self.model.all_disks())
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if not gap:
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raise Exception("autoinstall cannot configure storage "
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"- no gap found large enough for install")
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# This is not necessarily the exact gap to be used, as the gap size
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# may change once add_boot_disk has sorted things out.
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disk = gap.device
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guided_method(disk=disk, mode=mode)
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def validate_layout_mode(self, mode):
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if mode not in ('reformat_disk', 'use_gap'):
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raise ValueError(f'Unknown layout mode {mode}')
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@with_context()
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def convert_autoinstall_config(self, context=None):
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log.debug("self.ai_data = %s", self.ai_data)
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if 'layout' in self.ai_data:
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layout = self.ai_data['layout']
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meth = getattr(self, "guided_" + layout['name'])
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disk = self.model.disk_for_match(
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self.model.all_disks(),
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layout.get("match", {'size': 'largest'}))
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if not disk:
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raise Exception("autoinstall cannot configure storage "
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"- no disk found large enough for install")
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meth(disk)
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self.run_guided(self.ai_data['layout'])
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elif 'config' in self.ai_data:
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self.model.apply_autoinstall_config(self.ai_data['config'])
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self.model.grub = self.ai_data.get('grub')
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@ -15,6 +15,8 @@
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from unittest import mock, TestCase
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from parameterized import parameterized
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from subiquity.server.controllers.filesystem import FilesystemController
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from subiquitycore.tests.util import run_coro
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@ -103,3 +105,21 @@ class TestGuided(TestCase):
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self.assertEqual(None, d1p1.mount)
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self.assertEqual('/', d1p2.mount)
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self.assertEqual(d1p1.size + d1p1.offset, d1p2.offset)
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class TestLayout(TestCase):
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def setUp(self):
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self.app = make_app()
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self.app.opts.bootloader = 'UEFI'
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self.app.report_start_event = mock.Mock()
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self.app.report_finish_event = mock.Mock()
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self.fsc = FilesystemController(app=self.app)
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@parameterized.expand([('reformat_disk',), ('use_gap',)])
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def test_good_modes(self, mode):
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self.fsc.validate_layout_mode(mode)
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@parameterized.expand([('resize_biggest',), ('use_free',)])
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def test_bad_modes(self, mode):
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with self.assertRaises(ValueError):
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self.fsc.validate_layout_mode(mode)
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