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aws_elasticache_cluster_node Resource

Use the aws_elasticache_cluster_node InSpec audit resource to test the properties of a single AWS ElastiCache cluster node.

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_elasticache_cluster_node resource block declares the tests for a single AWS ElastiCache cluster node by cache_cluster_id and node_id.

describe aws_elasticache_cluster_node(cache_cluster_id: 'my-cluster-123', node_id: '0001') do
  it { should exist }
end

Parameters

The ElastiCache cluster ID and node ID must be provided.

cache_cluster_id (required)

The ID of the ElastiCache cluster:

  • contains between 1 and 50 alphanumeric characters or hyphens,
  • should start with a letter,
  • cannot end with a hyphen or contain two consecutive hyphens.

It can be passed either as a string or as a cache_cluster_id: 'value' key-value entry in a hash.

node_id (required)

The ID of the node must be a string containing 4 digits. It can be passed as a node_id: 'value' key-value entry in a hash.

Properties

id
The cache node identifier, e.g. 0001.
port
The port number that the cache engine is listening on.
address
The DNS hostname of the cache node.
status
The current state of the cache node. One of the following values: available, creating, rebooting, or deleting.
create_time
The date and time when the cache node was created.

There are also additional properties available. For a comprehensive list, see the API reference documentation.

Examples

Test that an ElastiCache cluster node is available.

describe aws_elasticache_cluster_node(cache_cluster_id: "my-cluster-123", node_id: "0001") do
    its("status") { should eq 'available' }
end

Test that an Elasticache cluster engine is listening on port 11211.

describe aws_elasticache_cluster_node(cache_cluster_id: "my-cluster-123", node_id: "0001") do
    its("port") { should cmp 11211 }
end

Test that an Elasticache cluster node’s customer availability zone is us-east-2b.

describe aws_elasticache_cluster_node(cache_cluster_id: "my-cluster-123", node_id: "0001") do
    its("customer_availability_zone") { should cmp "us-east-2b" }
end

Matchers

This InSpec audit resource has the following special matchers. For a full list of available matchers, please visit our matchers page.

exist

describe aws_elasticache_cluster_node(cache_cluster_id: "my-cluster-123", node_id: "0001") do
    it { should exist }
end

AWS Permissions

Your Principal will need the ElastiCache:Client:CacheClusterMessage action with Effect set to Allow.

You can find detailed documentation at Actions, Resources, and Condition Keys for Amazon ElastiCache, and Actions, Resources, and Condition Keys for Identity And Access Management.

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