How to use aws_logger method in localstack

Best Python code snippet using localstack_python

log.py

Source:log.py

1# Copyright (c) 2017 David Preece, All rights reserved.2#3# Permission to use, copy, modify, and/or distribute this software for any4# purpose with or without fee is hereby granted.5#6# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES7# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF8# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR9# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES10# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN11# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF12# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.13"""AWS CloudWatch compatible logger - logs to stdout if not running under AWS"""14import json.decoder15import requests16import boto317import logging18import json19import time20import signal21import os22import botocore.errorfactory23from botocore.exceptions import ClientError, EndpointConnectionError24from threading import Thread25from queue import Queue, Empty26class LogHandler(logging.Handler):27    def __init__(self, group, stream, blacklist=None):28        try:29            # see if we are logging verbosely30            dynamic_data_text = requests.get('http://169.254.169.254/latest/dynamic/instance-identity/document').text31            if '404 Not Found' in dynamic_data_text:32                raise requests.exceptions.ConnectionError33            ssm = boto3.client('ssm', region_name=json.loads(dynamic_data_text)['region'])34            try:35                verbose_string = ssm.get_parameter(Name='/20ft/verbose')['Parameter']['Value']36            except ClientError:  # string not written yet37                verbose_string = 'False'38            level = logging.DEBUG if verbose_string == 'True' or verbose_string == 'true' else logging.INFO39            # find instance ID40            iid = requests.get('http://169.254.169.254/latest/meta-data/instance-id').text41            stream_name = stream + '/' + iid42        except requests.exceptions.ConnectionError:  # not running under AWS43            level = logging.INFO44            stream_name = None45        super().__init__(level)46        self.blacklist = blacklist if blacklist is not None else []47        self.formatter = logging.Formatter(fmt='%(levelname)-8s %(message)s')48        logging.basicConfig(level=level, handlers=[self])49        # delivery thread (aws only)50        self.queue = None51        if stream_name is not None:52            self.queue = Queue()53            self.thread = Thread(target=self.background, args=(group, stream_name, self.queue))54            self.thread.start()55    def emit(self, record):56        # urllib and boto try to log themselves doing all sorts57        if record.name.startswith('urllib3') or record.name.startswith('botocore'):58            return59        # is the log on the blacklist?60        text = self.formatter.format(record)61        for string in self.blacklist:62            if string in text:63                return64        # otherwise enqueue the record65        print(self.formatter.format(record))66        if self.queue is not None:67            self.queue.put(record)68    def stop(self):69        """Posts a message on the queue telling the logging thread to stop."""70        if self.queue is not None:71            self.queue.put(None)72    def background(self, group, stream, queue):73        """Runs as a background thread delivering the logs as they arrive (to avoid stalling the event loop)"""74        # create a cloud watch log client75        dynamic_data_text = requests.get('http://169.254.169.254/latest/dynamic/instance-identity/document').text76        aws_logger = boto3.client('logs', region_name=json.loads(dynamic_data_text)['region'])77        # create the group and stream if need be78        groups = aws_logger.describe_log_groups(79            logGroupNamePrefix=group80        )['logGroups']81        groups_dict = {g['logGroupName']: g for g in groups}82        if group not in groups_dict.keys():83            aws_logger.create_log_group(84                    logGroupName=group85            )86        stream_desc = aws_logger.describe_log_streams(87                logGroupName=group,88                logStreamNamePrefix=stream89        )90        sequence_token = '0'91        streams = {s['logStreamName']: s for s in stream_desc['logStreams']}92        if stream not in streams:93            aws_logger.create_log_stream(94                    logGroupName=group,95                    logStreamName=stream96            )97        else:98            sequence_token = streams[stream]['uploadSequenceToken']99        # loop picking logs off the queue and delivering100        running = True101        while running:102            log_events = []103            try:104                while True:105                    # fetch the next record, unless there isn't one for one second106                    record = queue.get(timeout=1)107                    # None causes the loop to exit cleanly but still deliver the queue of log events108                    if record is None:109                        running = False110                    else:111                        text = self.formatter.format(record)112                        log_events.append({'timestamp': int(record.created * 1000), 'message': text})113                    # if there are very many log events fake a timeout hit so they get delivered114                    if len(log_events) == 256:115                        raise Empty116            # timeout hit117            except Empty:118                pass  # timeout hit119            # loop back if nothing to deliver120            if len(log_events) == 0:121                continue122            # loop until delivered or bad things happen123            sent = False124            while not sent:125                try:126                    result = aws_logger.put_log_events(127                            logGroupName=group,128                            logStreamName=stream,129                            logEvents=log_events,130                            sequenceToken=sequence_token131                    )132                    sequence_token = result['nextSequenceToken']133                    sent = True134                except ClientError as e:135                    print("....LogHandler error: " + str(e))136                    time.sleep(2)137                except EndpointConnectionError:138                    print("...Name resolution has failed")139                    self.queue.put(None)140                except BaseException as e:141                    print("...A bad thing happened with the logging thread: " + str(e))...

aws_mailer.py

Source:aws_mailer.py

1import boto32from botocore.exceptions import ClientError3from content import html, subject, text4from dotenv import dotenv_values5from logger_config import configLogger6import csv7aws_logger = configLogger(__name__)8config = dotenv_values(dotenv_path=".env")9try:10    AWS_REGION = config["AWS_REGION"]11    FROM_NAME = config["FROM_NAME"]12    FROM_EMAIL = config["FROM_EMAIL"]13    DOMAIN = config["DOMAIN"]14except:15    aws_logger.exception("Improperly Configured Environment")16    exit({"error": "Improperly Configured Environment"})17SENDER = f"{FROM_NAME} <{FROM_EMAIL}@{DOMAIN}>"18CHARSET = "UTF-8"19client = boto3.client('ses', region_name=AWS_REGION)20def sendEmail(email):21    email = email.strip()22    try:23        response = client.send_email(24            Destination={25                'ToAddresses': [26                    email,27                ],28            },29            Message={30                'Body': {31                    'Html': {32                        'Charset': CHARSET,33                        'Data': html,34                    },35                    'Text': {36                        'Charset': CHARSET,37                        'Data': text,38                    },39                },40                'Subject': {41                    'Charset': CHARSET,42                    'Data': subject,43                },44            },45            Source=SENDER,46        )47    except ClientError as e:48        aws_logger.error(f"Email not sent ({email})")49        print({e.response['Error']['Message']})50        with open("unsent.csv", "a") as unsent_csv:51            csv_w = csv.writer(unsent_csv)52            csv_w.writerow([email])53    else:54        aws_logger.debug(f"Email - {email}")55        aws_logger.debug(f"Sent - Message ID = {response['MessageId']}")56# only to make sure that the code is working57def main():58    sendEmail("example@example.com")59if __name__ == "__main__":...

test_logging.py

Source:test_logging.py

1from unittest import TestCase2from models import setuplogging3class MockAWSLogging():4    @staticmethod5    def info(message: str) -> None:6        assert message is not None7class TestLogging(TestCase):8    def test_setup_logging_mocked(self):9        setuplogging.AWS_LOGGER = None10        setuplogging.LOGGING_HANDLER = None11        setuplogging.initialize_logging(mocking=True)12        assert setuplogging.AWS_LOGGER is None13        assert setuplogging.LOGGING_HANDLER == setuplogging.mock_logging_handler14    def test_setup_logging_prod(self):15        setuplogging.AWS_LOGGER = None16        setuplogging.LOGGING_HANDLER = None17        setuplogging.initialize_logging(mocking=False)18        assert setuplogging.AWS_LOGGER is not None19        assert setuplogging.LOGGING_HANDLER == setuplogging.prod_logging_handler20    def test_logging_to_prod(self):21        """In this test we do all the prod setup but we change22        out where PROD logs to and log to a locally defined function"""23        setuplogging.AWS_LOGGER = None24        setuplogging.LOGGING_HANDLER = None25        setuplogging.initialize_logging(mocking=False)26        setuplogging.AWS_LOGGER = MockAWSLogging()27        string_to_log = "log this string"28        setuplogging.LOGGING_HANDLER(string_to_log)29    def test_logging_to_mocked(self):30        """Our mocked log is just a string, so make sure we stash it in the right place"""31        setuplogging.AWS_LOGGER = None32        setuplogging.LOGGING_HANDLER = None33        setuplogging.initialize_logging(mocking=True)34        string_to_log = "log this string"35        setuplogging.LOGGING_HANDLER(string_to_log)...

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