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Enforce Default Encryption Is Enabled for New AWS EBS Volumes
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Policy Settings
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Enforce Default Encryption Is Enabled for New AWS EBS Volumes

Enforcing encryption by default for AWS EC2 EBS volumes is essential for protecting sensitive data at rest. This measure ensures that all newly created EBS volumes are automatically encrypted, reducing the risk of unauthorized data access and breaches, and ensuring compliance with security best practices and regulatory requirements.

This policy pack can help you configure the following settings for EC2 EBS volumes:

  • Enforce encryption by default in a region

Documentation

Getting Started

Requirements

Credentials

To create a policy pack through Terraform:

  • Ensure you have Turbot/Admin permissions (or higher) in Guardrails
  • Create access keys in Guardrails

And then set your credentials:

export TURBOT_WORKSPACE=myworkspace.acme.com
export TURBOT_ACCESS_KEY=acce6ac5-access-key-here
export TURBOT_SECRET_KEY=a8af61ec-secret-key-here

Please see Turbot Guardrails Provider authentication for additional authentication methods.

Usage

Install Policy Pack

Note

By default, installed policy packs are not attached to any resources.

Policy packs must be attached to resources in order for their policy settings to take effect.

Clone:

git clone https://github.com/turbot/guardrails-samples.git
cd guardrails-samples/policy_packs/aws/ec2/enforce_default_encryption_is_enabled_for_new_ebs_volumes

Run the Terraform to create the policy pack in your workspace:

terraform init
terraform plan

Then apply the changes:

terraform apply

Apply Policy Pack

Log into your Guardrails workspace and attach the policy pack to a resource.

If this policy pack is attached to a Guardrails folder, its policies will be applied to all accounts and resources in that folder. The policy pack can also be attached to multiple resources.

For more information, please see Policy Packs.

Enable Enforcement

Tip

You can also update the policy settings in this policy pack directly in the Guardrails console.

Please note your Terraform state file will then become out of sync and the policy settings should then only be managed in the console.

By default, the policies are set to Check in the pack's policy settings. To enable automated enforcements, you can switch these policies settings by adding a comment to the Check setting and removing the comment from one of the listed enforcement options:

resource "turbot_policy_setting" "aws_ec2_account_attribute_encryption_by_default" {
  resource = turbot_policy_pack.main.id
  type     = "tmod:@turbot/aws-ec2#/policy/types/ec2AccountAttributesEbsEncryptionByDefault"
  # value    = "Check: AWS managed key or higher"
  # value    = "Check: Encryption at Rest > Customer Managed Key"
  # value    = "Enforce: AWS managed key"
  value    = "Enforce: Encryption at Rest > Customer Managed Key"
}

Then re-apply the changes:

terraform plan
terraform apply