0ded449e8d
The update_hosts_file function requires a full map of entries to write into /etc/hosts; the previous use of this function tried to write individual host entries only. Ensure that a full map of self + peers is written at appropriate points in a units lifecycle to ensure self and peer hostname resolvability. (also fixed a typo in a status message) Change-Id: If40b31a55641861a1e03985f318e012b545fcc25 Closes-Bug: 1592200 Closes-Bug: 1590085
221 lines
8.9 KiB
Python
221 lines
8.9 KiB
Python
# Copyright 2016 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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import os
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import sys
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from testtools import TestCase
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from mock import patch, MagicMock
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os.environ['JUJU_UNIT_NAME'] = 'UNIT_TEST/0' # noqa - needed for import
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# python-apt is not installed as part of test-requirements but is imported by
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# some charmhelpers modules so create a fake import.
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mock_apt = MagicMock()
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sys.modules['apt'] = mock_apt
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mock_apt.apt_pkg = MagicMock()
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with patch('charmhelpers.contrib.hardening.harden.harden') as mock_dec:
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mock_dec.side_effect = (lambda *dargs, **dkwargs: lambda f:
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lambda *args, **kwargs: f(*args, **kwargs))
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import rabbitmq_server_relations
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class RelationUtil(TestCase):
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def setUp(self):
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self.fake_repo = {}
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super(RelationUtil, self).setUp()
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@patch('rabbitmq_server_relations.peer_store_and_set')
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@patch('rabbitmq_server_relations.get_ipv6_addr')
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@patch('rabbitmq_server_relations.config')
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@patch('rabbitmq_server_relations.relation_set')
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@patch('rabbitmq_server_relations.cmp_pkgrevno')
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@patch('rabbitmq_server_relations.is_clustered')
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@patch('rabbitmq_server_relations.ssl_utils.configure_client_ssl')
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@patch('rabbitmq_server_relations.unit_get')
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@patch('rabbitmq_server_relations.relation_get')
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@patch('rabbitmq_server_relations.is_elected_leader')
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def test_amqp_changed_compare_versions_ha_queues(
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self,
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is_elected_leader, relation_get, unit_get, configure_client_ssl,
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is_clustered, cmp_pkgrevno, relation_set, mock_config,
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mock_get_ipv6_addr, mock_peer_store_and_set):
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"""
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Compare version above and below 3.0.1.
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Make sure ha_queues is set correctly on each side.
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"""
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def config(key):
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if key == 'prefer-ipv6':
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return False
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return None
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mock_config.side_effect = config
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host_addr = "10.1.2.3"
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unit_get.return_value = host_addr
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mock_get_ipv6_addr.return_value = [host_addr]
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is_elected_leader.return_value = True
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relation_get.return_value = {}
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is_clustered.return_value = False
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cmp_pkgrevno.return_value = -1
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rabbitmq_server_relations.amqp_changed(None, None)
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mock_peer_store_and_set.assert_called_with(
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relation_settings={'private-address': '10.1.2.3',
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'hostname': host_addr,
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'ha_queues': True},
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relation_id=None)
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cmp_pkgrevno.return_value = 1
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rabbitmq_server_relations.amqp_changed(None, None)
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mock_peer_store_and_set.assert_called_with(
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relation_settings={'private-address': '10.1.2.3',
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'hostname': host_addr},
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relation_id=None)
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@patch('rabbitmq_server_relations.peer_store_and_set')
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@patch('rabbitmq_server_relations.get_ipv6_addr')
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@patch('rabbitmq_server_relations.config')
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@patch('rabbitmq_server_relations.relation_set')
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@patch('rabbitmq_server_relations.cmp_pkgrevno')
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@patch('rabbitmq_server_relations.is_clustered')
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@patch('rabbitmq_server_relations.ssl_utils.configure_client_ssl')
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@patch('rabbitmq_server_relations.unit_get')
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@patch('rabbitmq_server_relations.relation_get')
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@patch('rabbitmq_server_relations.is_elected_leader')
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def test_amqp_changed_compare_versions_ha_queues_prefer_ipv6(
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self,
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is_elected_leader, relation_get, unit_get, configure_client_ssl,
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is_clustered, cmp_pkgrevno, relation_set, mock_config,
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mock_get_ipv6_addr, mock_peer_store_and_set):
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"""
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Compare version above and below 3.0.1.
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Make sure ha_queues is set correctly on each side.
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"""
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def config(key):
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if key == 'prefer-ipv6':
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return True
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return None
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mock_config.side_effect = config
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ipv6_addr = "2001:db8:1:0:f816:3eff:fed6:c140"
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mock_get_ipv6_addr.return_value = [ipv6_addr]
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host_addr = "10.1.2.3"
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unit_get.return_value = host_addr
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is_elected_leader.return_value = True
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relation_get.return_value = {}
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is_clustered.return_value = False
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cmp_pkgrevno.return_value = -1
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rabbitmq_server_relations.amqp_changed(None, None)
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mock_peer_store_and_set.assert_called_with(
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relation_settings={'private-address': ipv6_addr,
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'ha_queues': True},
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relation_id=None)
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cmp_pkgrevno.return_value = 1
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rabbitmq_server_relations.amqp_changed(None, None)
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mock_peer_store_and_set.assert_called_with(
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relation_settings={'private-address': ipv6_addr},
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relation_id=None)
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@patch.object(rabbitmq_server_relations, 'is_leader')
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@patch.object(rabbitmq_server_relations, 'related_units')
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@patch.object(rabbitmq_server_relations, 'relation_ids')
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@patch.object(rabbitmq_server_relations, 'config')
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def test_is_sufficient_peers(self, mock_config, mock_relation_ids,
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mock_related_units, mock_is_leader):
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# With leadership Election
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mock_is_leader.return_value = False
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_config = {'min-cluster-size': None}
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mock_config.side_effect = lambda key: _config.get(key)
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self.assertTrue(rabbitmq_server_relations.is_sufficient_peers())
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mock_is_leader.return_value = False
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mock_relation_ids.return_value = ['cluster:0']
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mock_related_units.return_value = ['test/0']
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_config = {'min-cluster-size': 3}
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self.assertTrue(rabbitmq_server_relations.is_sufficient_peers())
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mock_is_leader.return_value = False
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mock_related_units.return_value = ['test/0', 'test/1']
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self.assertTrue(rabbitmq_server_relations.is_sufficient_peers())
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# Without leadership Election
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mock_is_leader.side_effect = NotImplementedError
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_config = {'min-cluster-size': None}
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mock_config.side_effect = lambda key: _config.get(key)
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self.assertTrue(rabbitmq_server_relations.is_sufficient_peers())
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mock_is_leader.side_effect = NotImplementedError
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mock_relation_ids.return_value = ['cluster:0']
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mock_related_units.return_value = ['test/0']
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_config = {'min-cluster-size': 3}
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self.assertFalse(rabbitmq_server_relations.is_sufficient_peers())
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mock_is_leader.side_effect = NotImplementedError
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mock_related_units.return_value = ['test/0', 'test/1']
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self.assertTrue(rabbitmq_server_relations.is_sufficient_peers())
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@patch('rabbitmq_server_relations.rabbit.get_local_nodename')
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@patch.object(rabbitmq_server_relations, 'unit_get')
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@patch.object(rabbitmq_server_relations, 'related_units')
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@patch.object(rabbitmq_server_relations, 'relation_get')
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@patch.object(rabbitmq_server_relations, 'relation_ids')
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def test_rabbit_host_map(self,
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mock_relation_ids, mock_relation_get,
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mock_related_units, mock_unit_get,
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mock_local_nodename):
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_rdata = {
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'cluster:1': {
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'rabbitmq-server/1': {
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'hostname': 'juju-abc-lxd-1',
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'private-address': '10.10.10.1',
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},
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'rabbitmq-server/2': {
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'hostname': 'juju-abc-lxd-2',
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'private-address': '10.10.10.2',
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},
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'rabbitmq-server/3': {
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# missing hostname - will be skipped
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'private-address': '10.10.10.3',
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},
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}
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}
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def _relation_get(attribute, unit, rid):
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return _rdata[rid][unit].get(attribute)
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def _related_units(rid):
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return _rdata[rid].keys()
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mock_relation_get.side_effect = _relation_get
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mock_relation_ids.return_value = _rdata.keys()
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mock_related_units.side_effect = _related_units
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mock_unit_get.return_value = '10.10.10.0'
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mock_local_nodename.return_value = 'juju-abc-lxd-0'
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self.assertEqual(rabbitmq_server_relations.rabbit_host_map(),
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{'10.10.10.0': 'juju-abc-lxd-0',
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'10.10.10.1': 'juju-abc-lxd-1',
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'10.10.10.2': 'juju-abc-lxd-2'})
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mock_relation_ids.assert_called_with('cluster')
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mock_related_units.assert_called_with('cluster:1')
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mock_unit_get.assert_called_with('private-address')
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