aws_rds_cluster Resource

Use the aws_rds_cluster InSpec audit resource to test detailed properties of an individual RDS cluster.

RDS gives you access to the capabilities of a MySQL, MariaDB, PostgreSQL, Microsoft SQL Server, Oracle, or Amazon Aurora database server.

For additional information, including details on parameters and properties, see the AWS documentation on RDS cluster.

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

An aws_rds_cluster resource block uses resource parameters to search for an RDS cluster, and then tests that RDS cluster. If no RDS clusters match, no error is raised, but the exists matcher will return false and all properties will be nil. If more than one RDS cluster matches (due to vague search parameters), an error is raised.

describe aws_rds_cluster('test-cluster-id') do
  it { should exist }
end

# Can also use hash syntax

describe aws_rds_cluster(db_cluster_identifier: 'test-cluster-id') do
  it { should exist }
end

Parameters

db_cluster_identifier (required)

This resource accepts a single parameter, the user-supplied cluster identifier. This parameter isn’t case-sensitive. This can be passed either as a string or as a db_cluster_identifier: 'value' key-value entry in a hash.

Properties

For a comprehensive list of properties available to test on an RDS cluster see the AWS Response Object.

Examples

Test the engine used with an RDS cluster.

describe aws_rds_cluster(db_cluster_identifier: 'awsrds123') do
  its('engine')         { should eq 'mysql' }
  its('engine_version') { should eq '5.6.37' }
end

Test the storage allocated to an RDS cluster.

describe aws_rds_cluster(db_cluster_identifier: 'awsrds123') do
  its('storage_encrypted') { should eq true }
  its('allocated_storage') { should eq 10 }
end

Test the cluster status and master username.

describe aws_rds_cluster(db_cluster_identifier: 'awsrds123') do
  its('master_username') { should eq 'db-maintain' }
  its('status') { should eq 'available' }
end

Test the maximum and minimum capacity of a serverless RDS cluster.

describe aws_rds_cluster(db_cluster_identifier: 'awsrds123') do
  its('scaling_configuration_info.min_capacity') { should eq 2 }
  its('scaling_configuration_info.max_capacity') { should eq 64 }
end

Matchers

This InSpec audit resource has the following special matchers. For a full list of available matchers, please visit our 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_rds_cluster(db_cluster_identifier: 'AnExistingRDS') do
  it { should exist }
end

describe aws_rds_cluster(db_cluster_identifier: 'ANonExistentRDS') do
  it { should_not exist }
end

AWS Permissions

Your Principal will need the RDS:Client:DBClusterMessage action with Effect set to Allow.

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