aws_alb Resource

Use the aws_alb InSpec audit resource to test properties of a single AWS Application Load Balancer (ALB).

For additional information, including details on parameters and properties, see the AWS documentation on Elastic Load Balancing.

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 an aws_alb exists

describe aws_alb('arn:aws:elasticloadbalancing') do
  it { should exist }
end

describe aws_alb(load_balancer_arn: 'arn:aws:elasticloadbalancing') do
  it { should exist }
end

Parameters

load_balancer_arn (required): This resource accepts a single parameter, the ALB Arn which uniquely identifies the ALB. This can be passed either as a string or as a load_balancer_arn: 'value' key-value entry in a hash.

Properties

load_balancer_name: The name of the load balancer.
load_balancer_addresses: A collectionm of the load balancer addresses.
canonical_hosted_zone_id: The ID of the Amazon Route 53 hosted zone for the load balancer.
dns_name: The DNS name of the load balancer.
availability_zones: The Availability Zones for the load balancer.
security_groups: The security groups for the load balancer. Valid only for load balancers in a VPC.
scheme: The type of load balancer. Valid only for load balancers in a VPC.
state: The state of the load balancer.
subnets: A collection of the subnet ids.
type: The type of the load balancer.
access_log_enabled: Whether the access log for the load balancer is enabled.
vpc_id: The ID of the VPC for the load balancer.
zone_names: A collection of the names of the availability zones.
listeners: A collection of the listeners for the load balancer.
ssl_policies: A list of the SSL Policies configured for the listeners of the load balancer.
external_ports: A list of the ports configured for the listeners of the load balancer.
protocols: A list of the protocols configured for the listeners of the load balancer.

Examples

Test that an ALB has its availability zones configured correctly.

describe aws_alb('arn::alb') do
  its('zone_names.count')  { should be > 1 }
  its('zone_names')        { should include 'us-east-2a' }
  its('zone_names')        { should include 'us-east-2b' }
end

Test whether the access log is enabled for the Application Load Balancer.

describe aws_alb('load_balancer_arn::alb') do
  it                         { should exist }
  its ('access_log_enabled') { should eq true }
end

Matchers

This InSpec audit resource has no special matchers. For a full list of available matchers, please visit our Universal Matchers page.

exist

The control will pass if the describe returns at least one result.

Use should_not to test the entity should not exist.

describe aws_alb('AnExistingALB') do
  it { should exist }
end

describe aws_alb('ANonExistentALB') do
  it { should_not exist }
end

AWS Permissions

Your Principal will need the ElasticLoadBalancing:Client:DescribeLoadBalancers action with Effect set to Allow.

You can find detailed documentation at Authentication and Access Control for Your Load Balancers