def test_cloudwatch_alarms_error(monkeypatch): with pytest.raises(CheckError): cli = CloudwatchWrapper(region='my-region') cli.alarms(alarm_names=['123'], alarm_name_prefix='alarm-') with pytest.raises(CheckError): cli = CloudwatchWrapper(region='my-region') cli.alarms(alarm_names='123', alarm_name_prefix='alarm-')
def test_cloudwatch_query_one_bad_period(monkeypatch): client = MagicMock() get = MagicMock() get.return_value.json.return_value = {'region': 'myregion'} monkeypatch.setattr('requests.get', get) monkeypatch.setattr('boto3.client', lambda x, region_name: client) cloudwatch = CloudwatchWrapper() with pytest.raises(ValueError): cloudwatch.query_one({'LoadBalancerName': 'pierone-1'}, 'Latency', 'Average', 'AWS/ELB', period=90)
def test_cloudwatch_query_one_no_result(monkeypatch): client = MagicMock() client.get_metric_statistics.return_value = {'Datapoints': []} get = MagicMock() get.return_value.json.return_value = {'region': 'myregion'} monkeypatch.setattr('requests.get', get) monkeypatch.setattr('boto3.client', lambda x, region_name: client) cloudwatch = CloudwatchWrapper() elb_data = cloudwatch.query_one( { 'AvailabilityZone': 'NOT_SET', 'LoadBalancerName': 'pierone-1' }, 'Latency', 'Average', 'AWS/ELB') assert elb_data is None assert not client.list_metrics.called
def test_cloudwatch_alarms(monkeypatch, fx_alarms): kwargs, res = fx_alarms client = MagicMock() client.describe_alarms.return_value = {'MetricAlarms': res} monkeypatch.setattr('boto3.client', lambda x, region_name: client) cli = CloudwatchWrapper(region='my-region') result = cli.alarms(**kwargs) assert result == res transformed = transform_kwargs(kwargs) client.describe_alarms.assert_called_with(**transformed)
def test_cloudwatch_query_one_multiple_and_extended_statistics_no_points( monkeypatch): client = MagicMock() client.get_metric_statistics.return_value = { 'Datapoints': [{ 'Timestamp': 99, 'Average': 6.15, 'Maximum': 120.43 }, { 'Timestamp': 11, 'Average': 5.65, 'Maximum': 100.12 }] } get = MagicMock() get.return_value.json.return_value = {'region': 'myregion'} monkeypatch.setattr('requests.get', get) monkeypatch.setattr('boto3.client', lambda x, region_name: client) cloudwatch = CloudwatchWrapper() start = datetime.datetime.now() end = start # makes no sense, but works for our test elb_data = cloudwatch.query_one({'LoadBalancerName': 'pierone-1'}, 'Latency', ['Average', 'Maximum'], 'AWS/ELB', extended_statistics=['p99', 'p95'], start=start, end=end) assert {'Average': 6.15, 'Maximum': 120.43} == elb_data client.get_metric_statistics.assert_called_with( Namespace='AWS/ELB', MetricName='Latency', Dimensions=[{ 'Name': 'LoadBalancerName', 'Value': 'pierone-1' }], StartTime=start, EndTime=end, Period=60, Statistics=['Average', 'Maximum'], ExtendedStatistics=['p99', 'p95'])
def test_cloudwatch_alarms_with_assume_role(monkeypatch, fx_alarms): kwargs, res = fx_alarms client = MagicMock() client.describe_alarms.return_value = {'MetricAlarms': res} assume_role_resp = { 'Credentials': { 'AccessKeyId': 'key-1', 'SecretAccessKey': 'secret-key-1', 'SessionToken': 'session-token-1', } } client.assume_role.return_value = assume_role_resp session = MagicMock() session.return_value.client.return_value = client monkeypatch.setattr('boto3.client', lambda x, region_name: client) monkeypatch.setattr('boto3.Session', session) role = 'arn:aws:123456789:role/ROLE' region = 'my-region' cli = CloudwatchWrapper(region=region, assume_role_arn=role) result = cli.alarms(**kwargs) assert result == res transformed = transform_kwargs(kwargs) client.describe_alarms.assert_called_with(**transformed) client.assume_role.assert_called_with(RoleArn=role, RoleSessionName='zmon-woker-session') session.return_value.client.assert_called_with('cloudwatch', region_name=region) session.assert_called_with( aws_access_key_id=assume_role_resp['Credentials']['AccessKeyId'], aws_secret_access_key=assume_role_resp['Credentials'] ['SecretAccessKey'], aws_session_token=assume_role_resp['Credentials']['SessionToken'])
def test_cloudwatch_query_one(monkeypatch): client = MagicMock() client.get_metric_statistics.return_value = { 'Datapoints': [{ 'Timestamp': 99, 'Average': 111.25 }, { 'Timestamp': 11, 'Average': 100.25 }] } get = MagicMock() get.return_value.json.return_value = {'region': 'myregion'} monkeypatch.setattr('requests.get', get) monkeypatch.setattr('boto3.client', lambda x, region_name: client) cloudwatch = CloudwatchWrapper() start = datetime.datetime.now() end = start # makes no sense, but works for our test elb_data = cloudwatch.query_one({'LoadBalancerName': 'pierone-1'}, 'Latency', 'Average', 'AWS/ELB', start=start, end=end) assert 111.25 == elb_data assert not client.list_metrics.called client.get_metric_statistics.assert_called_with(Namespace='AWS/ELB', MetricName='Latency', Dimensions=[{ 'Name': 'LoadBalancerName', 'Value': 'pierone-1' }], StartTime=start, EndTime=end, Period=60, Statistics=['Average'])
def test_cloudwatch(monkeypatch): client = MagicMock() client.list_metrics.return_value = { 'Metrics': [{ 'MetricName': 'Latency', 'Namespace': 'ELB', 'Dimensions': [{ 'Name': 'LoadBalancerName', 'Value': 'pierone-1' }] }, { 'MetricName': 'Latency', 'Namespace': 'ELB', 'Dimensions': [{ 'Name': 'AvailabilityZone', 'Value': 'az-1' }, { 'Name': 'LoadBalancerName', 'Value': 'pierone-1' }] }, { 'MetricName': 'Latency', 'Namespace': 'ELB', 'Dimensions': [{ 'Name': 'LoadBalancerName', 'Value': 'otherapp-1' }] }] } client.get_metric_statistics.return_value = { 'Datapoints': [{ 'Timestamp': datetime.datetime.now(), 'Average': 100.25 }] } get = MagicMock() get.return_value.json.return_value = {'region': 'myregion'} monkeypatch.setattr('requests.get', get) monkeypatch.setattr('boto3.client', lambda x, region_name: client) cloudwatch = CloudwatchWrapper() elb_data = cloudwatch.query( { 'AvailabilityZone': 'NOT_SET', 'LoadBalancerName': 'pierone-*' }, 'Latency', 'Average', namespace='ELB') assert { 'Latency': 100.25, 'dimensions': { 'LoadBalancerName': { 'pierone-1': 100.25 } } } == elb_data
def test_cloudwatch_paging(monkeypatch): client = MagicMock() call_count = {'list_metrics': 0, 'get_metric_statistics': 0} def my_list_metrics(*args, **kwargs): call_count['list_metrics'] += 1 if 'NextToken' in kwargs: return { 'Metrics': [{ 'MetricName': 'NetworkOut', 'Namespace': 'AWS/EC2', 'Dimensions': [{ 'Name': 'AutoScalingGroupName', 'Value': 'tailor-1' }] }] } else: return { 'Metrics': [{ 'MetricName': 'NetworkOut', 'Namespace': 'AWS/EC2', 'Dimensions': [{ 'Value': 'i-123456789', 'Name': 'InstanceId' }] }, { 'MetricName': 'NetworkOut', 'Namespace': 'AWS/EC2', 'Dimensions': [{ 'Value': 'i-987654321', 'Name': 'InstanceId' }] }, { 'MetricName': 'NetworkOut', 'Namespace': 'AWS/EC2', 'Dimensions': [{ 'Value': 'other-asg-1VSSQK1FPN2A', 'Name': 'AutoScalingGroupName' }] }], 'NextToken': 'dummyToken' } def my_get_metric_statistics(*args, **kwargs): call_count['get_metric_statistics'] += 1 if kwargs['Dimensions'][0]['Name'] == 'AutoScalingGroupName' and kwargs[ 'Dimensions'][0]['Value'] == 'tailor-1': return { 'Datapoints': [{ 'Timestamp': datetime.datetime.now(), 'Average': 42.0 }] } client.list_metrics = my_list_metrics client.get_metric_statistics = my_get_metric_statistics monkeypatch.setattr('boto3.client', lambda x, region_name: client) cloudwatch = CloudwatchWrapper(region='dummy-region') data = cloudwatch.query( { 'AvailabilityZone': 'NOT_SET', 'AutoScalingGroupName': 'tailor-*' }, 'NetworkOut', 'Average', namespace='AWS/EC2') assert call_count['list_metrics'] is 2 assert call_count['get_metric_statistics'] is 1 assert { 'NetworkOut': 42.0, 'dimensions': { 'AutoScalingGroupName': { 'tailor-1': 42.0 } } } == data