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AWS DAX Cluster

This page shows how to write Terraform and CloudFormation for DAX Cluster and write them securely.

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aws_dax_cluster (Terraform)

The Cluster in DAX can be configured in Terraform with the resource name aws_dax_cluster. The following sections describe 5 examples of how to use the resource and its parameters.

Example Usage from GitHub

positive1.tf#L1
resource "aws_dax_cluster" "bar_1" {
  cluster_name       = "cluster-example"
  iam_role_arn       = data.aws_iam_role.example.arn
  node_type          = "dax.r4.large"
  replication_factor = 1
}
dax.tf#L1
resource "aws_dax_cluster" "bar" {
  cluster_name       = var.cluster_name
  iam_role_arn       = data.aws_iam_role.example.arn
  node_type          = var.dax_node_type
  replication_factor = 1
  availability_zones = [data.aws_availability_zones.ids]
match.without-configuration.tf#L1
resource "aws_dax_cluster" "bad_example" {
  // no server side encryption at all
}
match.ambiguous.tf#L1
resource "aws_dax_cluster" "bad_example" {
  // other DAX config

  server_side_encryption {
    // empty server side encryption config
  }
match.tf#L1
resource "aws_dax_cluster" "bad_example" {
  // other DAX config

  server_side_encryption {
    enabled = false // disabled server side encryption
  }

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Security Best Practices for aws_dax_cluster

There is 1 setting in aws_dax_cluster that should be taken care of for security reasons. The following section explain an overview and example code.

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Ensure to enable at rest encryption of DynamoDB Accelerator

It's better to enable at rest encryption of DynamoDB Accelerator to protect your data from unauthorized access to the underlying storage.

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You can check if the aws_dax_cluster setting in your .tf file is correct in 3 min with Shisho Cloud.

Parameters

>> from Terraform Registry

Explanation in Terraform Registry

Provides a DAX Cluster resource.

>> from Terraform Registry

AWS::DAX::Cluster (CloudFormation)

The Cluster in DAX can be configured in CloudFormation with the resource name AWS::DAX::Cluster. The following sections describe 10 examples of how to use the resource and its parameters.

Example Usage from GitHub

DAXEncryption-PASSED.yml#L5
    Type: AWS::DAX::Cluster
    Properties:
      ClusterName: "MyDAXCluster"
      NodeType: "dax.r3.large"
      ReplicationFactor: 1
      IAMRoleARN: "arn:aws:iam::111122223333:role/DaxAccess"
DAXEncryption-PASSED.yml#L5
    Type: AWS::DAX::Cluster
    Properties:
      ClusterName: "MyDAXCluster"
      NodeType: "dax.r3.large"
      ReplicationFactor: 1
      IAMRoleARN: "arn:aws:iam::111122223333:role/DaxAccess"
DAXEncryption-FAILED.yml#L5
    Type: AWS::DAX::Cluster
    Properties:
      ClusterName: "MyDAXCluster"
      NodeType: "dax.r3.large"
      ReplicationFactor: 1
      IAMRoleARN: "arn:aws:iam::111122223333:role/DaxAccess"
DAXEncryption-FAILED.yml#L5
    Type: AWS::DAX::Cluster
    Properties:
      ClusterName: "MyDAXCluster"
      NodeType: "dax.r3.large"
      ReplicationFactor: 1
      IAMRoleARN: "arn:aws:iam::111122223333:role/DaxAccess"
DAXEncryption-FAILED.yml#L5
    Type: AWS::DAX::Cluster
    Properties:
      ClusterName: "MyDAXCluster"
      NodeType: "dax.r3.large"
      ReplicationFactor: 1
      IAMRoleARN: "arn:aws:iam::111122223333:role/DaxAccess"
DAX.json#L6
      "Type": "AWS::DAX::Cluster",
      "Properties": {
        "ClusterName": "MyDAXCluster",
        "NodeType": "dax.r3.large",
        "ReplicationFactor": 1,
        "IAMRoleARN": "arn:aws:iam::111122223333:role/DaxAccess",
DAXClusterSpecification.json#L3
    "AWS::DAX::Cluster.SSESpecification": {
      "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-dax-cluster-ssespecification.html",
      "Properties": {
        "SSEEnabled": {
          "Required": false,
          "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-dax-cluster-ssespecification.html#cfn-dax-cluster-ssespecification-sseenabled",
DAXClusterSpecification.json#L3
    "AWS::DAX::Cluster.SSESpecification": {
      "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-dax-cluster-ssespecification.html",
      "Properties": {
        "SSEEnabled": {
          "Required": false,
          "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-dax-cluster-ssespecification.html#cfn-dax-cluster-ssespecification-sseenabled",
DAXClusterSpecification.json#L3
    "AWS::DAX::Cluster.SSESpecification": {
      "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-dax-cluster-ssespecification.html",
      "Properties": {
        "SSEEnabled": {
          "Required": false,
          "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-dax-cluster-ssespecification.html#cfn-dax-cluster-ssespecification-sseenabled",
DAXClusterSpecification.json#L3
    "AWS::DAX::Cluster.SSESpecification": {
      "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-dax-cluster-ssespecification.html",
      "Properties": {
        "SSEEnabled": {
          "Required": false,
          "Documentation": "http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-dax-cluster-ssespecification.html#cfn-dax-cluster-ssespecification-sseenabled",

Parameters

>> from AWS CloudFormation Documentation

Explanation in CloudFormation Registry

Creates a DAX cluster. All nodes in the cluster run the same DAX caching software.

>> from AWS CloudFormation Documentation

The Other Related AWS DAX Resources

Frequently asked questions

What is AWS DAX Cluster?

AWS DAX Cluster is a resource for DAX of Amazon Web Service. Settings can be wrote in Terraform and CloudFormation.

Where can I find the example code for the AWS DAX Cluster?

For Terraform, the Checkmarx/kics, Kushalkhadka7/aws-terraform-resources and shisho-security/shisho-security source code examples are useful. See the Terraform Example section for further details.

For CloudFormation, the SnidermanIndustries/checkov-fork, melscoop-test/check and bridgecrewio/checkov source code examples are useful. See the CloudFormation Example section for further details.

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