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s3-sync-lambda

Sync an S3 bucket to another S3 bucket in AWS Lambda.

This is a very light wrapper around the Python AWS CLI.

Configuration

To use this for backup purposes, it's recommended to create the target bucket in a different region.

The Lambda role requires permissions on the source and target S3 buckets. For the detailed permissions, refer to the lambda_s3_policy in test-infra/main.tf.

The Lambda should be configured with the following environment variables:

  • SOURCE_BUCKET
  • SOURCE_REGION
  • TARGET_BUCKET
  • TARGET_REGION

Versioning

This package uses PEP 440 internally which is converted to SemVer at publish time for wider tool compatibility.

Releasing

To perform a release, open a pull request with the name e.g. RELEASE 1.0.1, which updates the version number in pyproject.toml and adds a changelog entry. After it's merged to main, run the Manual release GitHub action.

Acknowledgements

This Lambda function was initially developed by Jacob Beard.

License

The project is licensed under the Apache License, Version 2.0.