AWS::Lambda::Alias VersionWeight - Amazon CloudFormation
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AWS::Lambda::Alias VersionWeight

The traffic-shifting configuration of a Lambda function alias.

Syntax

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

JSON

{ "FunctionVersion" : String, "FunctionWeight" : Number }

YAML

FunctionVersion: String FunctionWeight: Number

Properties

FunctionVersion

The qualifier of the second version.

Required: Yes

Type: String

Update requires: No interruption

FunctionWeight

The percentage of traffic that the alias routes to the second version.

Required: Yes

Type: Number

Update requires: No interruption

Examples

Routing Configuration

An alias that routes half of incoming requests to a second version.

YAML

alias: Type: AWS::Lambda::Alias Properties: FunctionName: !Ref function FunctionVersion: !GetAtt newVersion.Version Name: BLUE RoutingConfig: AdditionalVersionWeights: - FunctionVersion: !GetAtt version.Version FunctionWeight: 0.5