492 lines
17 KiB
Diff
492 lines
17 KiB
Diff
From 28fd5ea3fccb9d62bb7de90916eaa7ee8943a50e Mon Sep 17 00:00:00 2001
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From: Michal Hecko <mhecko@redhat.com>
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Date: Thu, 28 May 2026 15:30:14 +0200
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Subject: [PATCH 093/108] raid(mdadm): include configuration in initramfs
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Add code to handle detection of mdraid arrays based on the outputs of
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`mdadm --detail --scan`. The code is structured to handle raids in
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general (there is also dm-raid), i.e., it follows the usual pattern:
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scan, check; boot entry addition is not being modified for now. New
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model RAIDInfo is introduced, which provides basic information about
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RAID technologies used. To activate all arrays during boot, it is
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necessary to have rd.md.uuid=UUID on the kernel cmdline for every RAID
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array.
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Jira-ref: RHEL-36249
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---
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.../common/actors/checkraid/actor.py | 22 ++++
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.../actors/checkraid/libraries/checkraid.py | 33 +++++
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.../actors/checkraid/tests/test_checkraid.py | 112 ++++++++++++++++
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.../upgradeinitramfsgenerator/actor.py | 2 +
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.../libraries/upgradeinitramfsgenerator.py | 5 +
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.../common/actors/scanraid/actor.py | 21 +++
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.../actors/scanraid/libraries/scanraid.py | 40 ++++++
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.../actors/scanraid/tests/test_scanraid.py | 122 ++++++++++++++++++
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.../system_upgrade/common/models/raidinfo.py | 19 +++
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9 files changed, 376 insertions(+)
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create mode 100644 repos/system_upgrade/common/actors/checkraid/actor.py
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create mode 100644 repos/system_upgrade/common/actors/checkraid/libraries/checkraid.py
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create mode 100644 repos/system_upgrade/common/actors/checkraid/tests/test_checkraid.py
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create mode 100644 repos/system_upgrade/common/actors/scanraid/actor.py
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create mode 100644 repos/system_upgrade/common/actors/scanraid/libraries/scanraid.py
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create mode 100644 repos/system_upgrade/common/actors/scanraid/tests/test_scanraid.py
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create mode 100644 repos/system_upgrade/common/models/raidinfo.py
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diff --git a/repos/system_upgrade/common/actors/checkraid/actor.py b/repos/system_upgrade/common/actors/checkraid/actor.py
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new file mode 100644
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index 00000000..7af1124f
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--- /dev/null
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+++ b/repos/system_upgrade/common/actors/checkraid/actor.py
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@@ -0,0 +1,22 @@
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+from leapp.actors import Actor
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+from leapp.libraries.actor import checkraid
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+from leapp.models import RAIDInfo, TargetUserSpaceUpgradeTasks
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+from leapp.tags import ChecksPhaseTag, IPUWorkflowTag
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+
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+
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+class CheckRaid(Actor):
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+ """
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+ Ensure RAID configuration files are available in the target userspace.
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+
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+ If mdadm software RAID is in use, copies present mdadm configuration
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+ files and directories into the target userspace container so that
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+ dracut can include them in the upgrade initramfs.
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+ """
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+
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+ name = 'check_raid'
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+ consumes = (RAIDInfo,)
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+ produces = (TargetUserSpaceUpgradeTasks,)
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+ tags = (ChecksPhaseTag, IPUWorkflowTag)
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+
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+ def process(self):
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+ checkraid.process()
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diff --git a/repos/system_upgrade/common/actors/checkraid/libraries/checkraid.py b/repos/system_upgrade/common/actors/checkraid/libraries/checkraid.py
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new file mode 100644
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index 00000000..dbd02f54
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--- /dev/null
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+++ b/repos/system_upgrade/common/actors/checkraid/libraries/checkraid.py
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@@ -0,0 +1,33 @@
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+import os
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+
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+from leapp.libraries.stdlib import api
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+from leapp.models import CopyFile, RAIDInfo, TargetUserSpaceUpgradeTasks
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+
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+# Host paths for mdadm configuration (see mdadm.conf(5) FILES section).
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+MDADM_CONFIG_PATHS = (
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+ '/etc/mdadm.conf',
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+ '/etc/mdadm.conf.d',
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+ '/etc/mdadm/mdadm.conf',
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+ '/etc/mdadm/mdadm.conf.d',
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+)
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+
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+
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+def _mdadm_config_paths_present():
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+ for path in MDADM_CONFIG_PATHS:
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+ if os.path.isfile(path) or os.path.isdir(path):
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+ yield path
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+
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+
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+def process():
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+ raid_info = next(api.consume(RAIDInfo), None)
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+ if not raid_info or not raid_info.md_arrays:
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+ return
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+
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+ copy_files = [CopyFile(src=path) for path in _mdadm_config_paths_present()]
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+ if not copy_files:
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+ api.current_logger().warning(
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+ 'mdadm software RAID is in use but no mdadm configuration was found under: %s',
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+ ', '.join(MDADM_CONFIG_PATHS),
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+ )
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+ else:
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+ api.produce(TargetUserSpaceUpgradeTasks(copy_files=copy_files))
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diff --git a/repos/system_upgrade/common/actors/checkraid/tests/test_checkraid.py b/repos/system_upgrade/common/actors/checkraid/tests/test_checkraid.py
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new file mode 100644
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index 00000000..02a6122a
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--- /dev/null
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+++ b/repos/system_upgrade/common/actors/checkraid/tests/test_checkraid.py
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@@ -0,0 +1,112 @@
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+import os
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+
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+from leapp.libraries.actor import checkraid
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+from leapp.libraries.common.testutils import CurrentActorMocked, produce_mocked
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+from leapp.libraries.stdlib import api
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+from leapp.models import MDArray, RAIDInfo, TargetUserSpaceUpgradeTasks
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+
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+
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+def _mock_path_checks(monkeypatch, files=(), directories=()):
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+ def isfile(path):
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+ return path in files
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+
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+ def isdir(path):
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+ return path in directories
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+
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+ monkeypatch.setattr(os.path, 'isfile', isfile)
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+ monkeypatch.setattr(os.path, 'isdir', isdir)
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+
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+
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+def _md_arrays(*uuids):
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+ return [MDArray(uuid=uuid) for uuid in uuids]
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+
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+
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+def test_md_arrays_with_conf_dir(monkeypatch):
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+ _mock_path_checks(
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+ monkeypatch,
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+ files=('/etc/mdadm.conf',),
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+ directories=('/etc/mdadm.conf.d',),
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+ )
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+
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+ msgs = [RAIDInfo(md_arrays=_md_arrays('aaa:bbb'))]
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+ monkeypatch.setattr(api, 'current_actor', CurrentActorMocked(msgs=msgs))
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+ monkeypatch.setattr(api, 'produce', produce_mocked())
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+
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+ checkraid.process()
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+
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+ assert api.produce.called == 1
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+ copy_tasks = [m for m in api.produce.model_instances if isinstance(m, TargetUserSpaceUpgradeTasks)]
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+ assert len(copy_tasks) == 1
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+ assert [task.src for task in copy_tasks[0].copy_files] == [
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+ '/etc/mdadm.conf',
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+ '/etc/mdadm.conf.d',
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+ ]
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+
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+
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+def test_md_arrays_without_conf_dir(monkeypatch):
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+ _mock_path_checks(monkeypatch, files=('/etc/mdadm.conf',))
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+
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+ msgs = [RAIDInfo(md_arrays=_md_arrays('aaa:bbb'))]
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+ monkeypatch.setattr(api, 'current_actor', CurrentActorMocked(msgs=msgs))
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+ monkeypatch.setattr(api, 'produce', produce_mocked())
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+
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+ checkraid.process()
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+
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+ copy_tasks = [m for m in api.produce.model_instances if isinstance(m, TargetUserSpaceUpgradeTasks)]
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+ assert len(copy_tasks) == 1
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+ assert [task.src for task in copy_tasks[0].copy_files] == ['/etc/mdadm.conf']
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+
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+
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+def test_md_arrays_alternative_mdadm_conf(monkeypatch):
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+ _mock_path_checks(
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+ monkeypatch,
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+ files=('/etc/mdadm/mdadm.conf',),
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+ directories=('/etc/mdadm/mdadm.conf.d',),
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+ )
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+
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+ msgs = [RAIDInfo(md_arrays=_md_arrays('aaa:bbb'))]
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+ monkeypatch.setattr(api, 'current_actor', CurrentActorMocked(msgs=msgs))
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+ monkeypatch.setattr(api, 'produce', produce_mocked())
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+
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+ checkraid.process()
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+
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+ copy_tasks = [m for m in api.produce.model_instances if isinstance(m, TargetUserSpaceUpgradeTasks)]
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+ assert len(copy_tasks) == 1
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+ assert [task.src for task in copy_tasks[0].copy_files] == [
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+ '/etc/mdadm/mdadm.conf',
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+ '/etc/mdadm/mdadm.conf.d',
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+ ]
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+
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+
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+def test_md_arrays_no_config_paths(monkeypatch):
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+ _mock_path_checks(monkeypatch)
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+
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+ msgs = [RAIDInfo(md_arrays=_md_arrays('aaa:bbb'))]
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+ monkeypatch.setattr(api, 'current_actor', CurrentActorMocked(msgs=msgs))
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+ monkeypatch.setattr(api, 'produce', produce_mocked())
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+
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+ checkraid.process()
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+
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+ copy_tasks = [m for m in api.produce.model_instances if isinstance(m, TargetUserSpaceUpgradeTasks)]
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+ assert not copy_tasks
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+ assert not api.produce.called
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+
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+
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+def test_no_raid_info(monkeypatch):
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+ msgs = []
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+ monkeypatch.setattr(api, 'current_actor', CurrentActorMocked(msgs=msgs))
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+ monkeypatch.setattr(api, 'produce', produce_mocked())
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+
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+ checkraid.process()
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+
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+ assert not api.produce.called
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+
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+
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+def test_no_md_arrays(monkeypatch):
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+ msgs = [RAIDInfo(md_arrays=[])]
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+ monkeypatch.setattr(api, 'current_actor', CurrentActorMocked(msgs=msgs))
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+ monkeypatch.setattr(api, 'produce', produce_mocked())
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+
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+ checkraid.process()
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+
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+ assert not api.produce.called
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diff --git a/repos/system_upgrade/common/actors/initramfs/upgradeinitramfsgenerator/actor.py b/repos/system_upgrade/common/actors/initramfs/upgradeinitramfsgenerator/actor.py
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index c0c93036..32016ab0 100644
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--- a/repos/system_upgrade/common/actors/initramfs/upgradeinitramfsgenerator/actor.py
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+++ b/repos/system_upgrade/common/actors/initramfs/upgradeinitramfsgenerator/actor.py
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@@ -7,6 +7,7 @@ from leapp.models import (
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FIPSInfo,
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LiveModeConfig,
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LVMConfig,
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+ RaidInfo,
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TargetOSInstallationImage,
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TargetUserSpaceInfo,
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TargetUserSpaceUpgradeTasks,
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@@ -33,6 +34,7 @@ class UpgradeInitramfsGenerator(Actor):
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FIPSInfo,
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LiveModeConfig,
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LVMConfig,
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+ RaidInfo,
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RequiredUpgradeInitramPackages, # deprecated
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TargetOSInstallationImage,
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TargetUserSpaceInfo,
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diff --git a/repos/system_upgrade/common/actors/initramfs/upgradeinitramfsgenerator/libraries/upgradeinitramfsgenerator.py b/repos/system_upgrade/common/actors/initramfs/upgradeinitramfsgenerator/libraries/upgradeinitramfsgenerator.py
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index 24f35847..f2b45ae7 100644
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--- a/repos/system_upgrade/common/actors/initramfs/upgradeinitramfsgenerator/libraries/upgradeinitramfsgenerator.py
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+++ b/repos/system_upgrade/common/actors/initramfs/upgradeinitramfsgenerator/libraries/upgradeinitramfsgenerator.py
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@@ -14,6 +14,7 @@ from leapp.models import (
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BootContent,
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LiveModeConfig,
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LVMConfig,
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+ RaidInfo,
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TargetOSInstallationImage,
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TargetUserSpaceInfo,
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TargetUserSpaceUpgradeTasks,
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@@ -385,6 +386,10 @@ def generate_initram_disk(context):
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if next(api.consume(LVMConfig), None):
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env_variables.append('LEAPP_DRACUT_LVMCONF="1"')
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+ raid_info = next(api.consume(RaidInfo), None)
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+ if raid_info and raid_info.md_arrays:
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+ env_variables.append('LEAPP_DRACUT_MDADMCONF="1"')
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+
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env_variables = ' '.join(env_variables)
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env_variables = env_variables.format(
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kernel_version=_get_target_kernel_version(context),
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diff --git a/repos/system_upgrade/common/actors/scanraid/actor.py b/repos/system_upgrade/common/actors/scanraid/actor.py
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new file mode 100644
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index 00000000..62234b93
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--- /dev/null
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+++ b/repos/system_upgrade/common/actors/scanraid/actor.py
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@@ -0,0 +1,21 @@
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+from leapp.actors import Actor
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+from leapp.libraries.actor import scanraid
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+from leapp.models import DistributionSignedRPM, RAIDInfo
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+from leapp.tags import FactsPhaseTag, IPUWorkflowTag
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+
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+
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+class ScanRaid(Actor):
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+ """
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+ Detect whether software RAID is in use on the system.
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+
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+ Checks if the mdadm package is installed and whether any MD arrays
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+ are currently assembled and active by scanning mdadm configuration.
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+ """
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+
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+ name = 'scan_raid'
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+ consumes = (DistributionSignedRPM,)
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+ produces = (RAIDInfo,)
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+ tags = (FactsPhaseTag, IPUWorkflowTag)
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+
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+ def process(self):
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+ scanraid.process()
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diff --git a/repos/system_upgrade/common/actors/scanraid/libraries/scanraid.py b/repos/system_upgrade/common/actors/scanraid/libraries/scanraid.py
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new file mode 100644
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index 00000000..a810a238
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--- /dev/null
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+++ b/repos/system_upgrade/common/actors/scanraid/libraries/scanraid.py
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@@ -0,0 +1,40 @@
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+import re
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+
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+from leapp.libraries.common.rpms import has_package
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+from leapp.libraries.stdlib import api, CalledProcessError, run
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+from leapp.models import DistributionSignedRPM, MDArray, RAIDInfo
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+
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+MDADM_SCAN_CMD = ['mdadm', '--detail', '--scan', '--verbose']
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+UUID_PATTERN = re.compile(r'UUID=([0-9a-fA-F:]+)')
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+
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+
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+def _scan_md_array_uuids():
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+ try:
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+ result = run(MDADM_SCAN_CMD)
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+ except CalledProcessError as err:
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+ api.current_logger().warning('Failed to scan mdadm arrays: %s', err)
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+ return []
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+
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+ uuids = []
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+ for line in result['stdout'].splitlines():
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+ if not line.startswith('ARRAY '):
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+ continue
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+ match = UUID_PATTERN.search(line)
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+ if match:
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+ uuids.append(match.group(1))
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+
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+ return uuids
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+
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+
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+def process():
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+ if not has_package(DistributionSignedRPM, 'mdadm'):
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+ api.current_logger().debug('The mdadm package is not installed. Skipping.')
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+ return
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+
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+ uuids = _scan_md_array_uuids()
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+ if not uuids:
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+ api.current_logger().debug('No active mdadm software RAID arrays found.')
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+ return
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+
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+ api.current_logger().info('Detected active mdadm software RAID arrays.')
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+ api.produce(RAIDInfo(md_arrays=[MDArray(uuid=uuid) for uuid in uuids]))
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diff --git a/repos/system_upgrade/common/actors/scanraid/tests/test_scanraid.py b/repos/system_upgrade/common/actors/scanraid/tests/test_scanraid.py
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new file mode 100644
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index 00000000..255be095
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--- /dev/null
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+++ b/repos/system_upgrade/common/actors/scanraid/tests/test_scanraid.py
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@@ -0,0 +1,122 @@
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+import pytest
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+
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+from leapp.libraries.actor import scanraid
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+from leapp.libraries.common.testutils import CurrentActorMocked, logger_mocked, produce_mocked
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+from leapp.libraries.stdlib import api, CalledProcessError
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+from leapp.models import DistributionSignedRPM, MDArray, RAIDInfo, RPM
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+
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+_MDADM_RPM = RPM(
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+ name='mdadm',
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+ version='4.2',
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+ release='1.el9',
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+ epoch='0',
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+ packager='',
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+ arch='x86_64',
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+ pgpsig='RSA/SHA256, Mon 01 Jan 1970 00:00:00 AM -03, Key ID 199e2f91fd431d51'
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+)
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+
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+MDADM_SCAN_WITH_ARRAY = (
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+ 'ARRAY /dev/md0 level=raid1 num-devices=2 metadata=1.2 '
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+ 'name=localhost.localdomain:0 UUID=c4acea6e:d56e1598:91822e3f:fb26832c\n'
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+)
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+
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+MDADM_SCAN_WITH_TWO_ARRAYS = (
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+ 'ARRAY /dev/md0 metadata=1.2 UUID=c4acea6e:d56e1598:91822e3f:fb26832c\n'
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+ 'ARRAY /dev/md1 metadata=1.2 UUID=5eb8cf98:a8d13c2e:3e91b4ca:2e1ac678\n'
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+)
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+
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+
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+class RunMocked:
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+
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+ def __init__(self, stdout='', raise_err=False):
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+ self.called = 0
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+ self.args = None
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+ self.stdout = stdout
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+ self.raise_err = raise_err
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+
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+ def __call__(self, args, encoding=None):
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+ self.called += 1
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+ self.args = args
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+ if self.raise_err:
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+ raise CalledProcessError(
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+ message='A Leapp Command Error occurred.',
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+ command=args,
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+ result={'signal': None, 'exit_code': 1, 'pid': 0, 'stdout': 'fake', 'stderr': 'fake'}
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+ )
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+ assert args == scanraid.MDADM_SCAN_CMD
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+ return {'stdout': self.stdout}
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+
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+
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+def test_mdadm_not_installed(monkeypatch):
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+ msgs = [DistributionSignedRPM(items=[])]
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+ monkeypatch.setattr(api, 'current_actor', CurrentActorMocked(msgs=msgs))
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+ monkeypatch.setattr(api, 'produce', produce_mocked())
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+
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+ scanraid.process()
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+
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+ assert not api.produce.called
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+
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+
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+def test_mdadm_installed_with_active_arrays(monkeypatch):
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+ run_mocked = RunMocked(stdout=MDADM_SCAN_WITH_ARRAY)
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+ monkeypatch.setattr(scanraid, 'run', run_mocked)
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+
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+ msgs = [DistributionSignedRPM(items=[_MDADM_RPM])]
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+ monkeypatch.setattr(api, 'current_actor', CurrentActorMocked(msgs=msgs))
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+ monkeypatch.setattr(api, 'produce', produce_mocked())
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+
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+ scanraid.process()
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+
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+ assert run_mocked.called == 1
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+ assert api.produce.called == 1
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+ assert len(api.produce.model_instances) == 1
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+ produced = api.produce.model_instances[0]
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+ assert isinstance(produced, RAIDInfo)
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+ assert produced.md_arrays == [MDArray(uuid='c4acea6e:d56e1598:91822e3f:fb26832c')]
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+
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+
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+def test_mdadm_installed_with_multiple_arrays(monkeypatch):
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+ run_mocked = RunMocked(stdout=MDADM_SCAN_WITH_TWO_ARRAYS)
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+ monkeypatch.setattr(scanraid, 'run', run_mocked)
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|
+
|
|
+ msgs = [DistributionSignedRPM(items=[_MDADM_RPM])]
|
|
+ monkeypatch.setattr(api, 'current_actor', CurrentActorMocked(msgs=msgs))
|
|
+ monkeypatch.setattr(api, 'produce', produce_mocked())
|
|
+
|
|
+ scanraid.process()
|
|
+
|
|
+ produced = api.produce.model_instances[0]
|
|
+ assert [md_array.uuid for md_array in produced.md_arrays] == [
|
|
+ 'c4acea6e:d56e1598:91822e3f:fb26832c',
|
|
+ '5eb8cf98:a8d13c2e:3e91b4ca:2e1ac678',
|
|
+ ]
|
|
+
|
|
+
|
|
+def test_mdadm_installed_no_active_arrays(monkeypatch):
|
|
+ run_mocked = RunMocked(stdout='')
|
|
+ monkeypatch.setattr(scanraid, 'run', run_mocked)
|
|
+
|
|
+ msgs = [DistributionSignedRPM(items=[_MDADM_RPM])]
|
|
+ monkeypatch.setattr(api, 'current_actor', CurrentActorMocked(msgs=msgs))
|
|
+ monkeypatch.setattr(api, 'produce', produce_mocked())
|
|
+
|
|
+ scanraid.process()
|
|
+
|
|
+ assert run_mocked.called == 1
|
|
+ assert not api.produce.called
|
|
+
|
|
+
|
|
+def test_mdadm_installed_scan_failure(monkeypatch):
|
|
+ run_mocked = RunMocked(raise_err=True)
|
|
+ monkeypatch.setattr(scanraid, 'run', run_mocked)
|
|
+ monkeypatch.setattr(api, 'current_logger', logger_mocked())
|
|
+
|
|
+ msgs = [DistributionSignedRPM(items=[_MDADM_RPM])]
|
|
+ monkeypatch.setattr(api, 'current_actor', CurrentActorMocked(msgs=msgs))
|
|
+ monkeypatch.setattr(api, 'produce', produce_mocked())
|
|
+
|
|
+ scanraid.process()
|
|
+
|
|
+ assert run_mocked.called == 1
|
|
+ assert not api.produce.called
|
|
+ assert api.current_logger.warnmsg
|
|
diff --git a/repos/system_upgrade/common/models/raidinfo.py b/repos/system_upgrade/common/models/raidinfo.py
|
|
new file mode 100644
|
|
index 00000000..69188f1e
|
|
--- /dev/null
|
|
+++ b/repos/system_upgrade/common/models/raidinfo.py
|
|
@@ -0,0 +1,19 @@
|
|
+from leapp.models import fields, Model
|
|
+from leapp.topics import SystemInfoTopic
|
|
+
|
|
+
|
|
+class MDArray(Model):
|
|
+ """Information about a single mdadm software RAID array."""
|
|
+
|
|
+ topic = SystemInfoTopic
|
|
+
|
|
+ uuid = fields.String()
|
|
+ """UUID of the mdadm array."""
|
|
+
|
|
+
|
|
+class RAIDInfo(Model):
|
|
+ """Information about RAID usage on the source system."""
|
|
+ topic = SystemInfoTopic
|
|
+
|
|
+ md_arrays = fields.List(fields.Model(MDArray), default=[])
|
|
+ """List of active mdadm software RAID arrays."""
|
|
--
|
|
2.54.0
|
|
|