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aws_lambda_alias Resource

Use the aws_lambda_alias InSpec audit resource to test properties of a single AWS Lambda alias.

The AWS::Lambda::Alias resource creates an alias for a Lambda function version. Use aliases to provide clients with a function identifier that you can update to invoke a different version.

For additional information, including details on parameters and properties, see the AWS documentation on AWS Lambda alias.

Installation

This resource is available in the Chef InSpec AWS resource pack.

See the Chef InSpec documentation on cloud platforms for information on configuring your AWS environment for InSpec and creating an InSpec profile that uses the InSpec AWS resource pack.

Syntax

Ensure that the alias exists.

describe aws_lambda_alias(function_name: 'FUNCTION_NAME', function_alias_name: 'FUNCTION_ALIAS_NAME') do
  it { should exist }
end

Parameters

function_name (required)

The name of the lambda function.

function_alias_name (required)

Name of the alias for which you want to retrieve information.

Properties

alias_arn
Lambda function ARN that is qualified using the alias name as the suffix.
name
The alias name.
function_version
Function version to which the alias points.
description
The alias description.
routing_config.additional_version_weights
The name of the second alias, and the percentage of traffic that is routed to it.
revision_id
Represents the latest updated revision of the function or alias.

Examples

Ensure an alias ARN is available.

describe aws_lambda_alias(function_name: 'FUNCTION_NAME', function_alias_name: 'FUNCTION_ALIAS_NAME') do
  its('alias_arn') { should eq 'ALIAS_ARN' }
end

Ensure a alias name is available.

describe aws_lambda_alias(function_name: 'FUNCTION_NAME', function_alias_name: 'FUNCTION_ALIAS_NAME') do
  its('name') { should eq 'FUNCTION_ALIAS_NAME' }
end

Matchers

This InSpec audit resource has the following special matchers. For a full list of available matchers, please visit our Universal Matchers page.

The controls will pass if the get method returns at least one result.

exist

Use should to test that the entity exists.

describe aws_lambda_alias(function_name: 'FUNCTION_NAME', function_alias_name: 'FUNCTION_ALIAS_NAME') do
  it { should exist }
end

Use should_not to test the entity does not exist.

describe aws_lambda_alias(function_name: 'FUNCTION_NAME', function_alias_name: 'FUNCTION_ALIAS_NAME') do
  it { should_not exist }
end

be_available

Use should to check if the entity is available.

describe aws_lambda_alias(function_name: 'FUNCTION_NAME', function_alias_name: 'FUNCTION_ALIAS_NAME') do
  it { should be_available }
end

AWS Permissions

Your Principal will need the Lambda:Client:AliasConfiguration action with Effect set to Allow.

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