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Merge pull request #2515 from johannaengland/upgrade-eventengine-plugin
Implement an sw/hw/fw upgrade event handler plugin
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# | ||
# Copyright (C) 2023 Sikt | ||
# | ||
# This file is part of Network Administration Visualized (NAV). | ||
# | ||
# NAV is free software: you can redistribute it and/or modify it under | ||
# the terms of the GNU General Public License version 3 as published by | ||
# the Free Software Foundation. | ||
# | ||
# This program is distributed in the hope that it will be useful, but WITHOUT | ||
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | ||
# more details. You should have received a copy of the GNU General Public | ||
# License along with NAV. If not, see <http://www.gnu.org/licenses/>. | ||
# | ||
"""software/firmware/hardware upgrade handler plugin""" | ||
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from nav.eventengine.plugin import EventHandler | ||
from nav.eventengine.alerts import AlertGenerator | ||
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class UpgradeHandler(EventHandler): | ||
"""Accepts deviceNotice events""" | ||
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handled_types = ('deviceNotice',) | ||
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def handle(self): | ||
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event = self.event | ||
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if event.state != event.STATE_STATELESS: | ||
self._logger.info('Ignoring stateful deviceNotice event') | ||
else: | ||
self._post_alert(event) | ||
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event.delete() | ||
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def _post_alert(self, event): | ||
alert = AlertGenerator(event) | ||
if alert.alert_type in ( | ||
"deviceHwUpgrade", | ||
"deviceSwUpgrade", | ||
"deviceFwUpgrade", | ||
): | ||
alert.history_vars["old_version"] = alert.get("old_version", "N/A") | ||
alert.history_vars["new_version"] = alert.get("new_version", "N/A") | ||
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alert.post() |
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"""Integration tests for the apparent proper processing of deviceNotice events""" | ||
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from mock import Mock | ||
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import pytest | ||
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from nav.eventengine.plugins.upgrade import UpgradeHandler | ||
from nav.models.manage import Netbox, NetboxEntity | ||
from nav.models.event import EventQueue as Event | ||
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def test_upgrade_handler_should_copy_old_and_new_version_to_alert_history_if_they_exist( | ||
netbox_having_sw_upgrade, | ||
): | ||
fake_engine = Mock() | ||
fake_event = Event( | ||
source_id="ipdevpoll", | ||
target_id="eventEngine", | ||
event_type_id="deviceNotice", | ||
netbox=netbox_having_sw_upgrade, | ||
state=Event.STATE_STATELESS, | ||
) | ||
fake_event.varmap = { | ||
"old_version": "old version", | ||
"new_version": "new version", | ||
"alerttype": "deviceSwUpgrade", | ||
} | ||
fake_event.save() | ||
plugin = UpgradeHandler(fake_event, fake_engine) | ||
plugin.handle() | ||
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alert = ( | ||
netbox_having_sw_upgrade.alert_history_set.filter(event_type__id="deviceNotice") | ||
.filter(variables__isnull=False) | ||
.first() | ||
) | ||
assert alert, "no alert was posted on software upgrade" | ||
variables = alert.variables.all() | ||
assert variables.get(variable="old_version").value == "old version" | ||
assert variables.get(variable="new_version").value == "new version" | ||
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def test_upgrade_handler_should_not_fail_if_old_and_new_version_do_not_exist( | ||
netbox_having_sw_upgrade, | ||
): | ||
fake_engine = Mock() | ||
fake_event = Event( | ||
source_id="ipdevpoll", | ||
target_id="eventEngine", | ||
event_type_id="deviceNotice", | ||
netbox=netbox_having_sw_upgrade, | ||
state=Event.STATE_STATELESS, | ||
) | ||
fake_event.varmap = { | ||
"alerttype": "deviceSwUpgrade", | ||
} | ||
fake_event.save() | ||
plugin = UpgradeHandler(fake_event, fake_engine) | ||
plugin.handle() | ||
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alert = ( | ||
netbox_having_sw_upgrade.alert_history_set.filter(event_type__id="deviceNotice") | ||
.filter(variables__isnull=False) | ||
.first() | ||
) | ||
assert alert, "no alert was posted on software upgrade" | ||
variables = alert.variables.all() | ||
assert variables.get(variable="old_version").value == "N/A" | ||
assert variables.get(variable="new_version").value == "N/A" | ||
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######################## | ||
# # | ||
# fixtures and helpers # | ||
# # | ||
######################## | ||
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@pytest.fixture() | ||
def netbox_having_sw_upgrade(): | ||
box = Netbox( | ||
ip="10.254.254.254", | ||
sysname="upgradehost.example.org", | ||
organization_id="myorg", | ||
room_id="myroom", | ||
category_id="SW", | ||
) | ||
box.save() | ||
entity = NetboxEntity( | ||
index=1, | ||
netbox=box, | ||
software_revision="even newer version", | ||
) | ||
entity.save() | ||
yield box | ||
print("teardown test device") | ||
box.delete() | ||
entity.delete() |