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AWS::Lambda::Function S3FilesConfig
Setting controls how your function accesses data from an Amazon S3 file system.
Syntax
To declare this entity in your CloudFormation template, use the following syntax:
JSON
{ "DirectS3Read" :String}
YAML
DirectS3Read:String
Properties
DirectS3Read-
Specifies if a function reads from the file system for the lowest latency, or through Amazon S3 Files feature "direct Amazon S3 bucket reads" for the highest throughput. Valid values:
-
AUTO(default) – Direct reads are active for functions you configure with 512 MB or more of memory. -
ENABLED– Enforces all reads are directly from the Amazon S3 bucket, regardless of available memory (less than 512 MB). -
DISABLED– Routes all reads through the file system, regardless of memory configuration.
To use direct reads, you must grant the execution role the
s3:GetObjectands3:GetObjectVersionpermissions. If a direct read fails, Lambda automatically falls back to reading through the file system.Required: No
Type: String
Allowed values:
ENABLED | DISABLED | AUTOUpdate requires: No interruption
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