def test_search_for_ecs_details(self, mock_logger, mock_session,
event_no_cache):
cid = ContainerInstanceDrainer(event_no_cache, None)
cid.search_for_ecs_details('dummy-id')
cid.ecs_client.get_paginator.assert_any_call('list_clusters')
cid.ecs_client.get_paginator.assert_any_call(
'list_container_instances')
def test_set_draining_no_cache(self, mock_logger, mock_session,
event_no_cache):
cid = ContainerInstanceDrainer(event_no_cache, None)
cid.cache = {}
cid.set_draining('SomeCluster', 'SomeCiArn')
cid.ecs_client.update_container_instances_state.assert_called_with(
cluster='SomeCluster',
containerInstances=['SomeCiArn'],
status='DRAINING')
def test_get_ecs_details_no_cache(self, mock_logger, mock_session,
event_no_cache):
cid = ContainerInstanceDrainer(event_no_cache, None)
cid.cache = {}
expected = ('my_cluster_1', 'my_ci_1')
cid.search_for_ecs_details = Mock(return_value=expected)
rv = cid.get_ecs_details('dummy')
cid.search_for_ecs_details.assert_called_with('dummy')
assert rv == expected
def test_get_running_tasks(self, mock_logger, mock_session,
event_no_cache):
cid = ContainerInstanceDrainer(event_no_cache, None)
expected_tasks = ['task1', 'task2']
cid.ecs_client.list_tasks = Mock(
return_value={'taskArns': expected_tasks})
rv = cid.get_running_tasks('SomeCluster', 'SomeCiArn')
cid.ecs_client.list_tasks.assert_called_with(
cluster='SomeCluster', containerInstance='SomeCiArn')
assert rv == expected_tasks
def test_get_ecs_details_with_cache(self, mock_logger, mock_session,
event_no_cache):
cid = ContainerInstanceDrainer(event_no_cache, None)
cid.cache = dict(EcsCluster='my_cluster_2',
ContainerInstanceArn='my_ci_2')
expected = ('my_cluster_2', 'my_ci_2')
cid.search_for_ecs_details = Mock()
rv = cid.get_ecs_details('dummy')
assert rv == expected
cid.search_for_ecs_details.assert_not_called()
def test_run_sad_ecs_details(self, mock_logger, mock_session,
event_no_cache):
cid = ContainerInstanceDrainer(event_no_cache, None)
cid._sleep = Mock()
cid.get_ecs_details = Mock(return_value=('SomeCluster', 'SomeCiArn'))
cid.set_draining = Mock()
cid.complete_hook = Mock()
cid.get_running_tasks = Mock(return_value=['task1', 'task2'])
cid.get_ecs_details = Mock(return_value=())
cid.run()
cid.logger.error.assert_called_with(
"Unable to find cluster or container instance matching ec2 instance-id: %s",
'EC2InstanceIdFromMessage')
def test_run_with_no_tasks_running(self, mock_logger, mock_session,
event_no_cache):
cid = ContainerInstanceDrainer(event_no_cache, None)
cid._sleep = Mock()
cid.get_ecs_details = Mock(return_value=('SomeCluster', 'SomeCiArn'))
cid.set_draining = Mock()
cid.get_running_tasks = Mock(return_value=[])
cid.complete_hook = Mock()
cid.run()
cid.get_ecs_details.assert_called_with('EC2InstanceIdFromMessage')
cid.set_draining.assert_called_with('SomeCluster', 'SomeCiArn')
cid.get_running_tasks.assert_called_with('SomeCluster', 'SomeCiArn')
cid.complete_hook.assert_called()
def test_boto_init(self, mock_logger, mock_session, event_no_cache):
cid = ContainerInstanceDrainer(event_no_cache, None)
mock_session.assert_called_with()
mock_session.return_value.client.assert_any_call(service_name='ecs')
mock_session.return_value.client.assert_any_call(
service_name='autoscaling')
mock_session.return_value.client.assert_any_call(service_name='sns')
assert mock_session.return_value.client.call_count == 3
def test_run_with_tasks_still_running(self, mock_logger, mock_session,
event_no_cache):
cid = ContainerInstanceDrainer(event_no_cache, None)
cid._sleep = Mock()
cid.get_ecs_details = Mock(return_value=('SomeCluster', 'SomeCiArn'))
cid.set_draining = Mock()
cid.complete_hook = Mock()
cid.get_running_tasks = Mock(return_value=['task1', 'task2'])
cid.run()
cid.get_ecs_details.assert_called_with('EC2InstanceIdFromMessage')
cid.set_draining.assert_called_with('SomeCluster', 'SomeCiArn')
cid.get_running_tasks.assert_called_with('SomeCluster', 'SomeCiArn')
cid._sleep.assert_called_once_with(cid.reinvocation_delay)
cid.sns_client.publish.assert_called_once()
cid.complete_hook.assert_not_called()
def test_complete_hook(self, mock_logger, mock_session, event_no_cache):
cid = ContainerInstanceDrainer(event_no_cache, None)
kwargs = dict(LifecycleHookName='dummy_hook',
AutoScalingGroupName='dummy_asg',
InstanceId='dummy_instanceid',
LifecycleActionResult='DUMMY_ACTION')
cid.complete_hook(**kwargs)
cid.asg_client.complete_lifecycle_action.assert_called_with(**kwargs)
exc = ClientError({}, 'bam!')
cid.asg_client.complete_lifecycle_action.side_effect = exc
cid.complete_hook(**kwargs)
cid.logger.error.assert_called_once_with(
"Client error attempting to complete lifecycle hook: %s", exc)
cid.logger.reset_mock()
exc = Exception('oof!')
cid.asg_client.complete_lifecycle_action.side_effect = exc
cid.complete_hook(**kwargs)
cid.logger.error.assert_called_once_with(
"Unknown error attempting to complete lifecycle hook: %s", exc)
def test_init_message_has_no_cache(self, mock_logger, mock_session,
event_no_cache):
cid = ContainerInstanceDrainer(event_no_cache, None)
assert cid.cache == {}
def test_init_message_has_cache(self, mock_logger, mock_session,
event_with_cache):
cid = ContainerInstanceDrainer(event_with_cache, None)
assert cid.cache['EcsCluster'] == 'EcsClusterFromCache'
assert cid.cache[
'ContainerInstanceArn'] == 'ContainerInstanceArnFromCache'