Configuring functions

This page was generated from content adapted from the AWS Developer Guide

Configuring function options

• Note Configuring ephemeral storage past the default 512 MB allocated incurs a cost. For more information, see Lambda pricing.

• Note Compute Optimizer supports only functions that use x86_64 architecture.

Environment variables

• Note To increase database security, we recommend that you use AWS Secrets Manager instead of environment variables to store database credentials. For more information, see Configuring database access for a Lambda function.

• Note In some cases, you may need to use the following format:

• Note To increase database security, we recommend that you use AWS Secrets Manager instead of environment variables to store database credentials. For more information, see Configuring database access for a Lambda function.

Versions

• Note Lambda doesn't create a new version if the code in the unpublished version is the same as the previous published version. You need to deploy code changes in $LATEST before you can create a new version.

Creating layers

• Note For Node.js runtimes, Lambda doesn't currently support ES module dependencies in layers.

• Note Each time that you call publish-layer-version, you create a new version of the layer.