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How to use describe_subscription_filters method in localstack

Best Python code snippet using localstack_python

main.py

Source:main.py

...52    messages = []53    bar = Bar("Processing", max=len(log_groups))54    for log_group_name in log_groups:55        try:56            response = log_client.describe_subscription_filters(57                logGroupName=log_group_name,58                limit=5,59            )60            if len(response["subscriptionFilters"]) > 0:61                for subscription_filter in response["subscriptionFilters"]:62                    if subscription_filter["destinationArn"].endswith(63                        ":function:log_handler"64                    ):65                        logger.debug(66                            f"Log Group Name: {subscription_filter['logGroupName']}, Lambda: {subscription_filter['destinationArn']}"67                        )68                        messages.append(69                            f"Log Group Name: {subscription_filter['logGroupName']}, Lambda: {subscription_filter['destinationArn']}"70                        )71            bar.next()72        except log_client.exceptions.LimitExceededException:73            logger.warning("Limit exceeded exception, ignoring.")74            pass75        except log_client.exceptions.InvalidParameterException:76            logger.warning("Invalid parameter exception, ignoring.")77            pass78    bar.finish()79    print(messages)80    return81def delete_duplicate_filters():82    (83        log_handler_arn,84        aws_lambda_log_handler_arn,85        log_groups,86    ) = get_lambda_and_log_groups_details()87    logger.debug(f"Found {len(log_groups)} log groups")88    messages = []89    bar = Bar("Processing", max=len(log_groups))90    dry_run = strtobool(os.getenv("DRY_RUN", "true"))91    logger.info(f"Running DRY_RUN mode = {str(bool(dry_run))}")92    for log_group_name in log_groups:93        if log_group_name in excluded_log_group_names:94            continue95        function_name = get_function_name(log_group_name)96        subscription_filter_name = f"{function_name}-log-handler-lambda-subscription"97        try:98            response = log_client.describe_subscription_filters(99                logGroupName=log_group_name,100                limit=5,101            )102            filters = response["subscriptionFilters"]103            if (104                len(filters) == 2105                and filters[0]["destinationArn"] == filters[1]["destinationArn"]106            ):107                logger.debug(filters)108                if not dry_run:109                    messages.append(110                        f"Deleting the following filter: {subscription_filter_name} from {log_group_name}"111                    )112                    response = log_client.delete_subscription_filter(113                        logGroupName=log_group_name,114                        filterName=subscription_filter_name,115                    )116                    logger.debug(response)117                else:118                    messages.append(119                        f"We would be deleting the following filter: {subscription_filter_name} from {log_group_name}"120                    )121            bar.next()122        except log_client.exceptions.LimitExceededException:123            logger.warning("Limit exceeded exception, ignoring.")124            pass125        except log_client.exceptions.InvalidParameterException:126            logger.warning("Invalid parameter exception, ignoring.")127            pass128    bar.finish()129    print(messages)130    return131def get_formatted_subscription_filters():132    (133        log_handler_arn,134        aws_lambda_log_handler_arn,135        log_groups,136    ) = get_lambda_and_log_groups_details()137    logger.debug(f"Found {len(log_groups)} log groups")138    subscription_filter_map = {}139    bar = Bar("Processing", max=len(log_groups))140    for log_group_name in log_groups:141        if log_group_name in excluded_log_group_names:142            continue143        function_name = get_function_name(log_group_name)144        subscription_filter_name = f"{function_name}-log-handler-lambda-subscription"145        try:146            response = log_client.describe_subscription_filters(147                logGroupName=log_group_name,148                filterNamePrefix=subscription_filter_name,149                limit=5,150            )151            if len(response["subscriptionFilters"]) > 0:152                for subscription_filter in response["subscriptionFilters"]:153                    if subscription_filter["destinationArn"].endswith(154                        ":function:log_handler"155                    ):156                        subscription_filter_map[157                            log_group_name158                        ] = subscription_filter_name159            bar.next()160        except log_client.exceptions.LimitExceededException:...

log_group.py

Source:log_group.py

...49        next_token = ''50        filters = []51        while True:52            if next_token:53                result = client.describe_subscription_filters(54                    logGroupName=log_group_name,55                    nextToken=next_token56                )57            else:58                result = client.describe_subscription_filters(59                    logGroupName=log_group_name60                )61            filters.extend(result['subscriptionFilters'])62            if 'nextToken' in result:63                next_token = result['nextToken']64            else:65                break66        for item in filters:67            if item['filterName'] == subscription_filter_name:68                add_filter = False69        # Add new subscription filter if the parameter is set70        if subscription_destination_arn and add_filter:71            try:72                client.put_subscription_filter(73                    logGroupName=log_group_name,74                    filterName=subscription_filter_name,75                    filterPattern=subscription_filter_pattern,76                    destinationArn=subscription_destination_arn77                )78            except Exception as e:79                error_msg = 'Error: {}'.format(e)80                logger.error(error_msg)81        log_groups_result = client.describe_log_groups(82            logGroupNamePrefix=log_group_name,83            limit=184        )85        return {86            'Status': 'SUCCESS',87            'Reason': 'Log group created',88            'PhysicalResourceId': context.log_stream_name,89            'StackId': event['StackId'],90            'RequestId': event['RequestId'],91            'LogicalResourceId': event['LogicalResourceId'],92            'Data': {93                'Value': log_group_name,94                'Arn': log_groups_result.get('logGroups')[0].get('arn')95            }96        }97    except Exception as e:98        error_msg = 'Error: {}'.format(e)99        logger.error(error_msg)100        return {101            'Status': 'FAILED',102            'Reason': error_msg,103            'PhysicalResourceId': context.log_stream_name,104            'StackId': event['StackId'],105            'RequestId': event['RequestId'],106            'LogicalResourceId': event['LogicalResourceId']107        }108@handler.delete109def lambda_handler(event, context):110    properties = event['ResourceProperties']111    log_group_name = properties['LogGroupName']112    subscription_filter_name = properties.get('SubscriptionFilterName')113    return {114        'Status': 'SUCCESS',115        'Reason': 'Log subscription deleted',116        'PhysicalResourceId': context.log_stream_name,117        'StackId': event['StackId'],118        'RequestId': event['RequestId'],119        'LogicalResourceId': event['LogicalResourceId'],120        'Data': {121            'Value': log_group_name122        }123    }124    # try:125    #     client = boto3.client('logs')126    #     # Clear all existing subscription filters127    #     next_token = ''128    #     filters = []129    #     while True:130    #         if next_token:131    #             result = client.describe_subscription_filters(132    #                 logGroupName=log_group_name,133    #                 nextToken=next_token134    #             )135    #         else:136    #             result = client.describe_subscription_filters(137    #                 logGroupName=log_group_name138    #             )139    #         filters.extend(result['subscriptionFilters'])140    #         if 'nextToken' in result:141    #             next_token = result['nextToken']142    #         else:143    #             break144    #     for item in filters:145    #         if item['filterName'] == subscription_filter_name:146    #             client.delete_subscription_filter(147    #                 logGroupName=log_group_name,148    #                 filterName=item['filterName']149    #             )150    #     return {...

test_update.py

Source:test_update.py

1import pytest2import test_fixtures3from test_fixtures import context4from test_fixtures import log_groups5from test_fixtures import update_event6def test_update_no_existing(log_groups, update_event, context):7  return_value = log_groups.client.describe_log_groups.return_value8  log_groups.client.describe_log_groups.side_effect = [{'logGroups': []},test_fixtures.DESCRIBE_LOG_GROUPS]9  response = log_groups.handle(update_event,context)10  assert log_groups.client.create_log_group.called11  log_groups.client.put_retention_policy.assert_called_with(logGroupName=test_fixtures.LOG_GROUP_NAME, retentionInDays=30)12  assert log_groups.client.describe_subscription_filters.called13  assert not log_groups.client.delete_subscription_filter.called14  assert response == { 15    'PhysicalResourceId': test_fixtures.LOG_GROUP_NAME,16    'Data': { 'Arn': test_fixtures.FUNCTION_ARN }17  }18def test_update_retention(log_groups, update_event, context):19  update_event['ResourceProperties']['Retention'] = '7'20  response = log_groups.handle(update_event,context)21  assert not log_groups.client.create_log_group.called22  log_groups.client.put_retention_policy.assert_called_with(logGroupName=test_fixtures.LOG_GROUP_NAME, retentionInDays=7)23  assert log_groups.client.describe_subscription_filters.called24  assert not log_groups.client.delete_subscription_filter.called25  assert not log_groups.client.put_subscription_filter.called26  assert response == { 27    'PhysicalResourceId': test_fixtures.LOG_GROUP_NAME,28    'Data': { 'Arn': test_fixtures.FUNCTION_ARN }29  }30def test_update_new_subscription(log_groups, update_event, context):31  update_event['ResourceProperties']['Subscription'] = {32    'FilterName': 'Default',33    'FilterPattern': '',34    'DestinationArn': test_fixtures.SUBSCRIPTION_ARN35  }36  response = log_groups.handle(update_event,context)37  assert not log_groups.client.create_log_group.called38  log_groups.client.put_retention_policy.assert_called_with(logGroupName=test_fixtures.LOG_GROUP_NAME, retentionInDays=30)39  assert log_groups.client.describe_subscription_filters.called40  assert not log_groups.client.delete_subscription_filter.called41  assert log_groups.client.put_subscription_filter.called42  assert response == { 43    'PhysicalResourceId': test_fixtures.LOG_GROUP_NAME,44    'Data': { 'Arn': test_fixtures.FUNCTION_ARN }45  }46def test_update_existing_subscription(log_groups, update_event, context):47  update_event['ResourceProperties']['Subscription'] = {48    'FilterName': 'Default',49    'FilterPattern': '[filter]',50    'DestinationArn': test_fixtures.SUBSCRIPTION_ARN51  }52  log_groups.client.describe_subscription_filters.return_value = test_fixtures.DESCRIBE_SUBSCRIPTION_FILTERS53  response = log_groups.handle(update_event,context)54  assert not log_groups.client.create_log_group.called55  log_groups.client.put_retention_policy.assert_called_with(logGroupName=test_fixtures.LOG_GROUP_NAME, retentionInDays=30)56  assert log_groups.client.describe_subscription_filters.called57  assert log_groups.client.delete_subscription_filter.called58  assert log_groups.client.put_subscription_filter.called59  assert response == { 60    'PhysicalResourceId': test_fixtures.LOG_GROUP_NAME,61    'Data': { 'Arn': test_fixtures.FUNCTION_ARN }62  }63def test_update_existing_subscription_no_changes(log_groups, update_event, context):64  update_event['ResourceProperties']['Subscription'] = {65    'FilterName': 'Default',66    'FilterPattern': '',67    'DestinationArn': test_fixtures.SUBSCRIPTION_ARN68  }69  log_groups.client.describe_subscription_filters.return_value = test_fixtures.DESCRIBE_SUBSCRIPTION_FILTERS70  response = log_groups.handle(update_event,context)71  assert not log_groups.client.create_log_group.called72  log_groups.client.put_retention_policy.assert_called_with(logGroupName=test_fixtures.LOG_GROUP_NAME, retentionInDays=30)73  assert log_groups.client.describe_subscription_filters.called74  assert not log_groups.client.delete_subscription_filter.called75  assert not log_groups.client.put_subscription_filter.called76  assert response == { 77    'PhysicalResourceId': test_fixtures.LOG_GROUP_NAME,78    'Data': { 'Arn': test_fixtures.FUNCTION_ARN }...

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