Zuul
302 lines
13 KiB
Python
302 lines
13 KiB
Python
# Copyright 2019 Canonical Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from unittest import mock
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import os
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import subprocess
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import time
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import charms_openstack.test_utils as test_utils
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import charm.openstack.octavia_diskimage_retrofit as octavia_diskimage_retrofit
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class TestOctaviaDiskimageRetrofitCharm(test_utils.PatchHelper):
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def setUp(self):
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super().setUp()
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self.patch_release(
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octavia_diskimage_retrofit.OctaviaDiskimageRetrofitCharm.release)
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self.patch_object(octavia_diskimage_retrofit.ch_core.hookenv, 'config')
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self.config.side_effect = lambda: {
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'use-internal-endpoints': False,
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}
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self.target = (
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octavia_diskimage_retrofit.OctaviaDiskimageRetrofitCharm())
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def patch_target(self, attr, return_value=None):
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mocked = mock.patch.object(self.target, attr)
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self._patches[attr] = mocked
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started = mocked.start()
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started.return_value = return_value
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self._patches_start[attr] = started
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setattr(self, attr, started)
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def test_application_version(self):
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self.patch_object(
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octavia_diskimage_retrofit.charms_openstack.charm.core,
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'get_snap_version')
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self.get_snap_version.return_value = 'fake-version'
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c = octavia_diskimage_retrofit.OctaviaDiskimageRetrofitCharm()
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self.assertEqual(c.application_version, 'fake-version')
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self.get_snap_version.assert_called_once_with(
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'octavia-diskimage-retrofit')
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def test_request_credentials(self):
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keystone_endpoint = mock.MagicMock()
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c = octavia_diskimage_retrofit.OctaviaDiskimageRetrofitCharm()
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c.request_credentials(keystone_endpoint)
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keystone_endpoint.request_credentials.assert_called_once_with(
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c.name,
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project='services',
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domain='service_domain')
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def test_get_ubuntu_release(self):
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self.patch_object(
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octavia_diskimage_retrofit.subprocess, 'check_output')
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self.check_output.return_value = '20.04 LTS\n'
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self.assertEqual(self.target.get_ubuntu_release(), '20.04')
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self.check_output.assert_called_once_with(
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['distro-info', '-r', '--lts'], universal_newlines=True)
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self.check_output.reset_mock()
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self.target.get_ubuntu_release(series='focal')
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self.check_output.assert_called_once_with(
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['distro-info', '-r', '--series', 'focal'],
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universal_newlines=True)
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def test_handle_auto_retrofit(self):
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current_link = ('/etc/cron.weekly/' + octavia_diskimage_retrofit
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.CRON_JOB_LINKNAME)
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previous_link = ('/etc/cron.hourly/' + octavia_diskimage_retrofit
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.CRON_JOB_LINKNAME)
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installed_script = os.path.join("files", octavia_diskimage_retrofit
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.SCRIPT_WRAPPER_NAME)
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self.patch_object(
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octavia_diskimage_retrofit.os, 'symlink')
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self.patch_object(
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octavia_diskimage_retrofit.os.path, 'abspath')
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self.abspath.return_value = installed_script
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self.patch_target('config')
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self.config.__getitem__ = lambda _, key: {
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'auto-retrofit': True,
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'frequency': 'weekly',
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}.get(key)
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self.config.previous.return_value = 'hourly'
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self.patch_target('remove_cron_job')
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self.patch_object(octavia_diskimage_retrofit.ch_core.hookenv,
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'is_leader')
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self.patch_target('render_shell_wrapper')
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self.is_leader.return_value = True
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self.target.handle_auto_retrofit()
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self.is_leader.assert_called_once()
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self.target.remove_cron_job.assert_has_calls([
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mock.call(previous_link),
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mock.call(current_link)],
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any_order=False)
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self.target.render_shell_wrapper.assert_called_once()
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self.symlink.assert_called_once_with(installed_script, current_link)
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os_error = OSError()
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os_error.errno = octavia_diskimage_retrofit.ERR_FILE_EXISTS
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self.symlink.reset_mock()
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self.symlink.side_effect = os_error
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self.patch_object(octavia_diskimage_retrofit.ch_core.hookenv,
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'log')
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self.target.handle_auto_retrofit()
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self.assertEqual(self.log.call_args[0][0],
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'symlink "' + current_link + '" already exists')
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self.symlink.reset_mock()
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self.is_leader.return_value = False
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self.target.handle_auto_retrofit()
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self.symlink.assert_not_called()
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def test_remove_cron_job(self):
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fake_link = 'fake_link'
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self.patch_object(
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octavia_diskimage_retrofit.os, 'unlink')
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self.target.remove_cron_job(fake_link)
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self.unlink.assert_called_once_with(fake_link)
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os_error = OSError()
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os_error.errno = octavia_diskimage_retrofit.ERR_FILE_NOT_EXISTS
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self.unlink.reset_mock()
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self.unlink.side_effect = os_error
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self.patch_object(octavia_diskimage_retrofit.ch_core.hookenv, 'log')
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self.target.remove_cron_job(fake_link)
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self.assertEqual(self.log.call_args[0][0],
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'symlink "' + fake_link + '" does not exist')
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def test_render_shell_wrapper(self):
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unit_name = 'octavia-diskimage-retrofit/0'
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self.patch_object(
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octavia_diskimage_retrofit.os.path, 'exists')
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self.exists.return_value = False
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self.patch_object(octavia_diskimage_retrofit.ch_core.hookenv,
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'local_unit')
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self.patch_object(octavia_diskimage_retrofit.ch_core,
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'templating')
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self.local_unit.return_value = unit_name
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target = os.path.join("files",
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octavia_diskimage_retrofit.SCRIPT_WRAPPER_NAME)
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render_params = {
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'source': octavia_diskimage_retrofit.SCRIPT_WRAPPER_TEMPLATE_NAME,
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'target': target,
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'perms': 0o755,
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'context': {
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'unit_name': unit_name
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},
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'templates_dir': 'files'
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}
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self.target.render_shell_wrapper()
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self.local_unit.assert_called_once()
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self.templating.render.assert_called_once_with(**render_params)
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self.exists.reset_mock()
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self.exists.return_value = True
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self.local_unit.reset_mock()
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self.templating.render.reset_mock()
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self.target.render_shell_wrapper()
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self.local_unit.assert_not_called()
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self.templating.render.assert_not_called()
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def test_retrofit(self):
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timestamp = '03/07/22 15:54:22'
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self.patch_object(octavia_diskimage_retrofit, 'glance_retrofitter')
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glance = mock.MagicMock()
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self.glance_retrofitter.get_glance_client.return_value = glance
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class FakeImage(object):
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id = 'aId'
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name = 'aName'
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architecture = 'aArchitecture'
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os_distro = 'aOSDistro'
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os_version = 'aOSVersion'
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version_name = 'aVersionName'
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product_name = 'aProductName'
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fake_image = FakeImage()
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self.patch_object(octavia_diskimage_retrofit.os, 'environ')
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self.environ.copy.return_value = {
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'LANG': 'en_US.UTF-8',
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'USER': 'someone',
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}
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proxy_envvars = {
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'http_proxy': 'http://squid.internal:3128',
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'HTTP_PROXY': 'http://squid.internal:3128',
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'no_proxy': 'jujucharms.com',
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'NO_PROXY': 'jujucharms.com',
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}
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glance.images.create.return_value = fake_image
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self.glance_retrofitter.find_source_image.return_value = fake_image
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self.patch_object(
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octavia_diskimage_retrofit.tempfile,
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'NamedTemporaryFile')
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self.patch_object(octavia_diskimage_retrofit.ch_core, 'hookenv')
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self.patch_object(octavia_diskimage_retrofit.subprocess,
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'check_output')
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self.patch_target('config')
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self.config.__getitem__ = lambda _, key: {
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'debug': True,
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'ubuntu-mirror': '',
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'uca-mirror': '',
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'retrofit-series': '',
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'retrofit-uca-pocket': 'pocket',
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'amp-image-tag': 'octavia-amphora',
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}.get(key)
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self.patch_target('get_ubuntu_release')
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self.get_ubuntu_release.side_effect = lambda series: (
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'20.04' if series == 'focal' else '18.04')
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self.patch_object(octavia_diskimage_retrofit.ch_core.host,
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'get_distrib_codename')
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self.get_distrib_codename.return_value = 'charm-unit-distro'
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with mock.patch('charm.openstack.octavia_diskimage_retrofit.open',
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create=True) as mocked_open:
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self.glance_retrofitter.find_destination_image.return_value = \
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[fake_image]
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with self.assertRaises(
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octavia_diskimage_retrofit.DestinationImageExists):
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self.target.retrofit('aKeystone')
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_fsi_mock = self.glance_retrofitter.find_source_image
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_fsi_mock.assert_called_once_with(
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mock.ANY, release='20.04')
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self.get_ubuntu_release.assert_has_calls([
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mock.call(series=''),
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mock.call(series='charm-unit-distro'),
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])
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self.get_ubuntu_release.reset_mock()
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self.config.__getitem__ = lambda _, key: {
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'debug': True,
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'retrofit-series': 'bionic',
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'retrofit-uca-pocket': '',
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'amp-image-tag': 'octavia-amphora',
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}.get(key)
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self.glance_retrofitter.find_source_image.reset_mock()
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self.glance_retrofitter.session_from_identity_credentials.\
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assert_called_once_with('aKeystone')
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self.glance_retrofitter.get_glance_client.assert_called_once_with(
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self.glance_retrofitter.session_from_identity_credentials(),
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endpoint_type='publicURL', region=None)
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self.glance_retrofitter.find_destination_image.return_value = \
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[]
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self.hookenv.env_proxy_settings.return_value = proxy_envvars
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self.patch_target('db')
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self.patch_object(time, 'strftime')
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self.strftime.return_value = timestamp
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self.target.retrofit('aKeystone')
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self.get_ubuntu_release.assert_called_once_with(series='bionic')
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self.glance_retrofitter.find_source_image.assert_called_once_with(
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mock.ANY, release='18.04')
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self.NamedTemporaryFile.assert_has_calls([
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mock.call(delete=False,
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dir=octavia_diskimage_retrofit.TMPDIR),
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mock.call(delete=False,
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dir=octavia_diskimage_retrofit.TMPDIR),
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])
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self.hookenv.atexit.assert_called_with(os.unlink, mock.ANY)
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self.hookenv.status_set.assert_has_calls([
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mock.call('maintenance', 'Downloading aName'),
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mock.call('maintenance', 'Retrofitting aName'),
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mock.call('maintenance', 'Uploading aName'),
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])
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self.glance_retrofitter.download_image.assert_called_once_with(
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glance, fake_image, self.NamedTemporaryFile())
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self.check_output.assert_called_once_with(
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['octavia-diskimage-retrofit', '-u', 'ussuri', '-d',
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self.NamedTemporaryFile().name,
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self.NamedTemporaryFile().name],
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stderr=subprocess.STDOUT, universal_newlines=True,
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env={**self.environ.copy(), **proxy_envvars})
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glance.images.create.assert_called_once_with(
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container_format='bare',
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disk_format='qcow2',
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name='amphora-haproxy-aArchitecture-aOSDistro-aOSVersion-'
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'aVersionName',
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architecture='aArchitecture')
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glance.images.upload.assert_called_once_with('aId', mock.ANY)
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mocked_open.assert_called_once_with(
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self.NamedTemporaryFile().name, 'rb')
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glance.images.update.assert_called_once_with(
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'aId',
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source_product_name='aProductName',
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source_version_name='aVersionName',
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tags=['octavia-diskimage-retrofit', 'octavia-amphora'])
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self.strftime.assert_called_once()
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self.db.set.assert_has_calls([
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mock.call(octavia_diskimage_retrofit.KEY_LAST_RUN_IMAGE_ID,
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'aId'),
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mock.call(octavia_diskimage_retrofit.KEY_LAST_RUN_TIME,
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timestamp)
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])
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self.db.flush.assert_called_once()
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