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Lambda Based Log Processors

This repo contains a collection of lambda based log processors for use with AWS sourced logs

  • alb-s3-sqs-es - Load logs from S3 into ES based on SQS S3 events
  • cloudwatch-firehose-es - Kinesis Firehose log processor which formats logs from CloudWatch logs into messages for ElasticSearch

Testing

To test the log processor, the serverless framework can be used with the provided sample events.

npm install
pip install -r requirements.txt
npx sls invoke local -f cloudwatch-firehose --path dev/test-event-siem-categories.json --env CATEGORIZATION_ATTRIBUTE=categories

To generate new events,

  1. construct the desired cloud watch event structure from one of the existing *-data.json examples.
  2. generate the expected firehose data via `gzip -c {data file} | base64
  3. remove the line separators (if any) from the expected firehose data and use it to create a new firehose event based on the existing examples. It is useful to update the delivery stream name as this is shown in the trace from the function.