aws_lambda_aliases resource

Use the aws_lambda_aliases InSpec audit resource to test properties of multiple AWS Lambda aliases.

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.

Syntax

Ensure that the alias exists.

describe aws_lambda_aliases(function_name: 'FUNCTION_NAME') do
  it { should exist }
end

Parameters

function_name (required): The name of the lambda function.

Properties

alias_arns: Lambda function ARN that is qualified using the alias name as the suffix.; Field: alias_arn
names: The alias names.; Field: name
function_versions: Function version to which the alias points.; Field: function_version
descriptions: The alias descriptions.; Field: description
routing_configs: Specifies an additional function versions the alias points to, allowing you to dictate what percentage of traffic will invoke each version.; Field: routing_config
revision_ids: Represents the latest updated revision of the function or alias.; Field: revision_id

Examples

Ensure an alias ARN is available:

describe aws_lambda_aliases(function_name: 'FUNCTION_NAME') do
  its('alias_arns') { should include 'ALIAS_ARN' }
end

Ensure an alias name is available:

describe aws_lambda_aliases(function_name: 'FUNCTION_NAME') do
  its('names') { should include 'FUNCTION_ALIAS_NAME' }
end

Matchers

For a full list of available matchers, see our Universal Matchers page.

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

exist

Use should to test that the entity exists.

describe aws_lambda_aliases(function_name: 'FUNCTION_NAME') do
  it { should exist }
end

Use should_not to test the entity does not exist.

describe aws_lambda_aliases(function_name: 'FUNCTION_NAME') do
  it { should_not exist }
end

be_available

Use should to check if the entity is available.

describe aws_lambda_aliases(function_name: 'FUNCTION_NAME') do
  it { should be_available }
end

AWS Permissions

Your AWS principal will need the Lambda:Client:ListAliasesResponse action with Effect set to Allow.