aws_lambda_permission resource

Use the aws_lambda_permission InSpec audit resource to test properties of a single AWS Lambda permission.

The AWS::Lambda::Permission resource grants an AWS service or another account permission to use a function. You can apply the policy at the function level, or specify a qualifier to restrict access to a single version or alias. If you use a qualifier, the invoker must use the full Amazon Resource Name (ARN) of that version or alias to invoke the function.

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

Syntax

Ensure that permission has the desired statement ID.

describe aws_lambda_permission(function_name: 'LAMBDA_FUNCTION_NAME', Sid: 'STATEMENT_ID') do
  its('sid') { should eq 'STATEMENT_ID' }
end

Parameters

function_name (required)

The name of the Lambda function.

Sid (required)

The statement ID of the function.

Properties

sid

The statement ID of the function.

effect

The effect of the function.

principal

The AWS service or account that invokes the function.

action

The action that the principal can use on the function.

resource

The resource ARN of the function.

Examples

Ensure a statement ID is available:

describe aws_lambda_permission(function_name: 'LAMBDA_FUNCTION_NAME', Sid: 'STATEMENT_ID') do
  its('sid') { should eq 'StatementID' }
end

Ensure a effect is available:

describe aws_lambda_permission(function_name: 'LAMBDA_FUNCTION_NAME', Sid: 'STATEMENT_ID') do
    its('effect') { should eq 'Allow' }
end

Matchers

AWS Permissions

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