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Summary
This commit replaces stunnel, which provides TLS encryptions for mounts, with efs-proxy, a component built in-house at AWS. Efs-proxy lays the foundation for upcoming feature launches at EFS.
For details on upgrading to efs-utils v2.0.0, see the readme section, "Upgrading from efs-utils v1 to v2".
Testing
We've performed internal functional, performance, robustness, and chaos testing, to ensure that efs-proxy meets the high bar expected of AWS software.
Circleci tests passed here.