AWS Lambda announces self-managed code storage

AWS Lambda Self-Managed Code Storage

AWS Lambda now supports self-managed Amazon S3 buckets for code storage, enabling you to reference source code directly from your own S3 buckets without Lambda creating intermediate copies. This eliminates code storage limits and reduces function activation time after function creates and updates by removing the copy step.

Lambda has increased the default limit for Lambda-managed code storage from 75GB to 300GB per Region per account.

What to do

• Set the `S3ObjectStorageMode` parameter to `REFERENCE` when creating or updating functions and layers.
• Grant the Lambda service principal `s3:GetObject` and `s3:GetObjectVersion` permissions on your S3 bucket.
• Update a function to use self-managed code storage via the Lambda Console.

Source: AWS release notes

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