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aws_route_tables Resource

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Use the aws_route_tables InSpec audit resource to test the properties of all route tables or a group of route tables, and all routes or a group of routes. A route table contains a set of rules, called routes, that are used to determine where network traffic is directed.

For additional information, including details on parameters and properties, see the AWS documentation on route tables.

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

describe aws_route_tables do
  it { should exist }
end

Parameters

This resource does not require any parameters.

Properties

route_table_ids
The route table IDs.

Field: route_table_id

vpc_ids
The VPC IDs.

Field: vpc_id

entries
Provides access to the raw results of the query, which can be treated as an array of hashes.

Field: Not Applicable

routes(carrier_gateway_ids)
The ID of the carrier gateway.

Field: carrier_gateway_id

routes(destination_cidr_blocks)
The IPv4 CIDR block used for the destination match.

Field: destination_cidr_block

routes(destination_ipv_6_cidr_blocks)
The IPv6 CIDR block used for the destination match.

Field: destination_ipv_6_cidr_block

routes(destination_prefix_list_ids)
The prefix of the AWS service.

Field: destination_prefix_list_id

routes(egress_only_internet_gateway_ids)
The ID of the egress-only internet gateway.

Field: egress_only_internet_gateway_id

routes(gateway_ids)
The ID of a gateway attached to your VPC.

Field: gateway_id

routes(instance_ids)
The ID of a NAT instance in your VPC.

Field: instance_id

routes(local_gateway_ids)
The ID of the local gateway.

Field: instance_owner_id

routes(nat_gateway_ids)
The ID of a NAT gateway.

Field: nat_gateway_id

routes(network_interface_ids)
The ID of the network interface.

Field: network_interface_id

routes(transit_gateway_ids)
The ID of a transit gateway.

Field: transit_gateway_id

routes(vpc_peering_connection_ids)
The ID of a VPC peering connection.

Field: vpc_peering_connection_id

routes(instance_owner_ids)
The owner ID of a NAT instance in your VPC.

Field: instance_owner_id

routes(origins)
Describes how the route was created.

Field: origin

routes(states)
The state of the route.

Field: state

route_table_association_ids
List of associated route table association IDs.

Field: route_table_association_ids

association_subnet_ids
List of all association states(associated, failed, disassociated) subnet IDs.

Field: association_subnet_ids

associated_subnet_ids
List of associated subnet IDs.

Field: associated_subnet_ids

association_gateway_ids
List of all association states(associated, failed, disassociated) gateway IDs.

Field: association_gateway_ids

associated_gateway_ids
List of associated gateway IDs.

Field: associated_gateway_ids

association_states
List of all association states(associated, failed, disassociated).

Field: association_states

main
flag to indicate the main route table.

Field: main

Examples

Confirm that a route table exists.

describe aws_route_tables do
  its('vpc_ids') { should include 'VPC_ID' }
end

Confirm a route table exists.

describe aws_route_tables do
  its('route_table_ids') { should include 'ROUTE_TABLE_ID' }
end

Confirm a destination_cidr_blocks is there in the routes.

describe aws_route_tables do
  its('destination_cidr_blocks') { should include "IPV4_CIDR_BLOCK" }
end

Ensure subnet ID of interest is associated .

describe aws_route_tables do
  its('associated_subnet_ids') { should include 'SUBNET_ID' }
end

Filter only main route tables.

describe aws_route_tables.where(main: true) do
  it { should exist }
end

Filter all failed associations.

describe aws_route_tables.where{ association_states.include?('associated') } do
  it { should exist }
end

Matchers

exist

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

Use should to test the entity should not exist.

describe aws_route_tables do
  it { should exist }
end

AWS Permissions

Your Principal will need the EC2:Client:DescribeRouteTablesResult action with Effect set to Allow.

You can find detailed documentation at Actions, Resources, and Condition Keys for Amazon EC2.

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