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aws_rds_snapshot Resource

Use the aws_rds_snapshot InSpec audit resource to test the detailed properties of an individual RDS snapshot.

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

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_snapshot resource block uses resource parameters to search for an RDS snapshot and test the respective RDS snapshot.

No error is raised if no RDS snapshots match. However, the exists matcher will return false, and all properties will be nil.

An error is raised if more than one RDS snapshot matches (due to vague search parameters).

describe aws_rds_snapshot('TEST-SNAPSHOT-ID') do
  it { should exist }
end
# Can also use hash syntax
describe aws_rds_snapshot(db_snapshot_identifier: 'TEST-SNAPSHOT-ID') do
  it { should exist }
end
# Passing in
describe aws_rds_snapshot(resource_data: 'RESOURCE_DATA_OBJECT') do
  it { should exist }
end

Parameters

db_snapshot_identifier (required if resource_data not provided)

The user-supplied database snapshot identifier. This parameter can passed as a string or a db_snapshot_identifier: 'value' key-value entry in a hash.

resource_data (required if db_snapshot_identifier not provided)

A cached resource data object. This must be passed key-value entry in a hash. For example, resource_data: 'RESOURCE_DATA_OBJECT' .

Properties

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

Examples

Tests the engine used is with an RDS snapshot.

describe aws_rds_snapshot(db_snapshot_identifier: 'AWSRDS123') do
  its ('engine')         { should eq 'MYSQL' }
  its ('engine_version') { should eq '5.6.37' }
end

Tests the storage allocated to an RDS snapshot.

describe aws_rds_snapshot(db_snapshot_identifier: 'AWSRDS123') do
  its ('allocated_storage') { should eq 10 }
end

Tests the snapshot type and master username.

describe aws_rds_snapshot(db_snapshot_identifier: 'AWSRDS123') do
  its ('master_username')   { should eq 'DB-MAINTAIN' }
end

Tests the snapshot using cached resource data.

describe aws_rds_snapshot(resource_data: 'AWS_RDS_SNAPSHOT') do
    its ('engine')         { should eq 'MYSQL' }
    its ('engine_version') { should eq '5.6.37' }
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_snapshot(db_snapshot_identifier: 'AnExistingRDS') do
  it { should exist }
end
describe aws_rds_snapshot(db_snapshot_identifier: 'ANonExistentRDS') do
  it { should_not exist }
end

AWS Permissions

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

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

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