35 lines
1.0 KiB
Python
35 lines
1.0 KiB
Python
import base64
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import gzip
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import json
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import os
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from io import BytesIO
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import boto3
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sns_client = boto3.client('sns')
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def lambda_handler(event, context):
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awslogs_dict = event.get('awslogs')
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base64_data = awslogs_dict.get('data')
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try:
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decoded_gzip_data = base64.b64decode(base64_data)
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except Exception as e:
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raise e
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log_event_str = gzip.GzipFile(fileobj=BytesIO(decoded_gzip_data)).read()
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log_event = json.loads(log_event_str)
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# SNSのSubjectパラメータは100文字までという制限があるため、100文字に切り出す(切り捨てた分は「...」に変換)
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subject = f'Detect Error(or Warning) in {log_event.get("logGroup")}'
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subject = subject[:97] + '...' if len(subject) > 100 else subject
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publish_message = {
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'Subject': subject,
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'Message': '\n'.join([log.get('message') for log in log_event.get('logEvents')]),
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'TopicArn': os.environ.get('SNS_TOPIC_ARN')
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}
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print(publish_message)
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sns_client.publish(**publish_message)
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