AWS::Lambda::LayerVersion - AWS CloudFormation

AWS::Lambda::LayerVersion

The AWS::Lambda::LayerVersion resource creates an AWS Lambda layer from a ZIP archive.

Syntax

To declare this entity in your AWS CloudFormation template, use the following syntax:

JSON

{ "Type" : "AWS::Lambda::LayerVersion", "Properties" : { "CompatibleRuntimes" : [ String, ... ], "Content" : Content, "Description" : String, "LayerName" : String, "LicenseInfo" : String } }

YAML

Type: AWS::Lambda::LayerVersion Properties: CompatibleRuntimes: - String Content: Content Description: String LayerName: String LicenseInfo: String

Properties

CompatibleRuntimes

A list of compatible function runtimes. Used for filtering with ListLayers and ListLayerVersions.

Required: No

Type: List of String

Maximum: 5

Update requires: Replacement

Content

The function layer archive.

Required: Yes

Type: Content

Update requires: Replacement

Description

The description of the version.

Required: No

Type: String

Minimum: 0

Maximum: 256

Update requires: Replacement

LayerName

The name or Amazon Resource Name (ARN) of the layer.

Required: No

Type: String

Minimum: 1

Maximum: 140

Pattern: (arn:[a-zA-Z0-9-]+:lambda:[a-zA-Z0-9-]+:\d{12}:layer:[a-zA-Z0-9-_]+)|[a-zA-Z0-9-_]+

Update requires: Replacement

LicenseInfo

The layer's software license. It can be any of the following:

  • An SPDX license identifier. For example, MIT.

  • The URL of a license hosted on the internet. For example, https://opensource.org/licenses/MIT.

  • The full text of the license.

Required: No

Type: String

Maximum: 512

Update requires: Replacement

Return values

Ref

When you pass the logical ID of this resource to the intrinsic Ref function, Ref returns the ARN of the layer version, such as arn:aws:lambda:us-west-2:123456789012:layer:my-layer:1.

For more information about using the Ref function, see Ref.

Examples

Layer Version

Create a layer named my-layer.

JSON

"MyLayer": { "Type": "AWS::Lambda::LayerVersion", "Properties": { "CompatibleRuntimes": [ "python3.6", "python3.7" ], "Content": { "S3Bucket": "my-bucket-us-west-2-123456789012", "S3Key": "layer.zip" }, "Description": "My layer", "LayerName": "my-layer", "LicenseInfo": "MIT" } }

YAML

MyLayer: Type: AWS::Lambda::LayerVersion Properties: CompatibleRuntimes: - python3.6 - python3.7 Content: S3Bucket: my-bucket-us-west-2-123456789012 S3Key: layer.zip Description: My layer LayerName: my-layer LicenseInfo: MIT