""" Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved. SPDX-License-Identifier: MIT-0 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. """ from distutils.command.config import config import os import boto3 from datetime import datetime import json import csv from botocore.exceptions import ClientError from email.mime.multipart import MIMEMultipart from email.mime.text import MIMEText from email.mime.application import MIMEApplication today = datetime.now().strftime("%Y-%m-%d") # Currnent day filename = f'/tmp/changed_resources-{today}.csv' # CSV report filename AGGREGATOR_NAME = os.environ['AGGREGATOR_NAME'] # AWS Config Aggregator name SENDER = os.environ['SENDER'] # SES Sender address RECIPIENT = os.environ['RECIPIENT'] # SES Recipient address # Generate the resource link to AWS Console UI def get_link(aws_region, resource_id, resource_type): return f'https://{aws_region}.console.aws.amazon.com/config/home?region={aws_region}#/resources/timeline?resourceId={resource_id}&resourceType={resource_type}' # Generate the CSV Report def create_report(AGGREGATOR_NAME, today, filename): client = boto3.client('config') response = client.select_aggregate_resource_config( Expression=f"SELECT * WHERE configurationItemCaptureTime LIKE '{today}%'", ConfigurationAggregatorName=AGGREGATOR_NAME ) changed_resources = response["Results"] json_list = [json.loads(line) for line in changed_resources] # Transform the JSON response to CSV file for resource in json_list: aws_region = resource['awsRegion'] resource_id = resource['resourceId'] resource_type = resource['resourceType'] resource['Link'] = get_link(aws_region, resource_id, resource_type) print(resource) all_fields = set() for item in json_list: all_fields.update(item.keys()) # Save the report file with open(filename, 'w', newline='') as csv_file: writer = csv.DictWriter(csv_file, fieldnames=list(all_fields)) writer.writeheader() writer.writerows(json_list) print("Report generated " + filename) def send_email(today, SENDER, RECIPIENT, filename): # The subject line for the email. SUBJECT = f"AWS Config changes report {today}" ATTACHMENT = filename BODY_TEXT = "Hello,\r\nPlease see the attached file which includes the changes made during the last day." ses = boto3.client('ses') # The HTML body of the email. BODY_HTML = """\

Hello, please see the attached file which includes the changes made during the last day.

""" CHARSET = "utf-8" msg = MIMEMultipart('mixed') msg['Subject'] = SUBJECT msg['From'] = SENDER msg['To'] = RECIPIENT msg_body = MIMEMultipart('alternative') textpart = MIMEText(BODY_TEXT.encode(CHARSET), 'plain', CHARSET) htmlpart = MIMEText(BODY_HTML.encode(CHARSET), 'html', CHARSET) msg_body.attach(textpart) msg_body.attach(htmlpart) att = MIMEApplication(open(ATTACHMENT, 'rb').read()) att.add_header('Content-Disposition', 'attachment', filename=os.path.basename(ATTACHMENT)) msg.attach(msg_body) msg.attach(att) # Provide the contents of the email. response = ses.send_raw_email( Source=SENDER, Destinations=[ RECIPIENT ], RawMessage={ 'Data': msg.as_string(), } ) print("Email sent! Message ID:"), print(response['MessageId']) def config_reporter(event, lambda_context): create_report(AGGREGATOR_NAME, today, filename) send_email(today, SENDER, RECIPIENT, filename)