README.md

This component is responsible for provisioning account-level settings: AWS Account Alias, EBS encryption, S3 block public access, alternate contacts, SSM session preferences, EBS snapshot block public access, EC2 instance metadata defaults, EC2 AMI block public access, and EMR block public access configuration.

Tip

👽 Use Atmos with Terraform

Cloud Posse uses atmos to easily orchestrate multiple environments using Terraform.
Works with Github Actions, Atlantis, or Spacelift.

Watch demo of using Atmos with Terraform

Example of running atmos to manage infrastructure from our Quick Start tutorial.

Introduction

mixins:
  # Use upstream mixin for providers.tf without account-map dependency
  - uri: https://raw.githubusercontent.com/cloudposse-terraform-components/mixins/{{ .Version }}/src/mixins/providers.depth-1.tf
    version: v0.3.2
    filename: providers.tf

Usage

Stack Level: Global

Here's an example snippet for how to use this component. It's suggested to apply this component to all accounts, so create a file stacks/catalog/account-settings.yaml with the following content and then import that file in each account's global stack (overriding any parameters as needed):

components:
  terraform:
    account-settings:
      vars:
        enabled: true
        account_alias_enabled: true
        s3_block_public_access_enabled: true
        ebs_default_encryption_enabled: true
        ebs_snapshot_block_public_access_enabled: true
        ec2_instance_metadata_defaults_enabled: true
        ec2_image_block_public_access_enabled: true
        emr_block_public_access_enabled: true
        ssm_block_public_document_sharing: true
        billing_contact:
          name: "John Doe"
          title: "CFO"
          email_address: "billing@example.com"
          phone_number: "+1-555-123-4567"
        operations_contact:
          name: "Jane Smith"
          title: "DevOps Lead"
          email_address: "ops@example.com"
          phone_number: "+1-555-234-5678"
        security_contact:
          name: "Bob Wilson"
          title: "CISO"
          email_address: "security@example.com"
          phone_number: "+1-555-345-6789"
        ssm_session_preferences_enabled: true
        ssm_session_idle_timeout_minutes: 30

Requirements

Providers

Modules

Resources

Inputs

object({
    name          = string
    title         = string
    email_address = string
    phone_number  = string
  })

{
  "additional_tag_map": {},
  "attributes": [],
  "delimiter": null,
  "descriptor_formats": {},
  "enabled": true,
  "environment": null,
  "id_length_limit": null,
  "label_key_case": null,
  "label_order": [],
  "label_value_case": null,
  "labels_as_tags": [
    "unset"
  ],
  "name": null,
  "namespace": null,
  "regex_replace_chars": null,
  "stage": null,
  "tags": {},
  "tenant": null
}

list(object({
    min_range = number
    max_range = number
  }))

[
  "default"
]

object({
    name          = string
    title         = string
    email_address = string
    phone_number  = string
  })

object({
    name          = string
    title         = string
    email_address = string
    phone_number  = string
  })

Outputs

Related Projects

Check out these related projects.

• Cloud Posse Terraform Modules - Our collection of reusable Terraform modules used by our reference architectures.
• Atmos - Atmos is like docker-compose but for your infrastructure

References

For additional context, refer to some of these links.

• cloudposse-terraform-components - Cloud Posse's upstream component

✨ Contributing

This project is under active development, and we encourage contributions from our community.

Many thanks to our outstanding contributors:

For 🐛 bug reports & feature requests, please use the issue tracker.

In general, PRs are welcome. We follow the typical "fork-and-pull" Git workflow.

1. Review our Code of Conduct and Contributor Guidelines.
2. Fork the repo on GitHub
3. Clone the project to your own machine
4. Commit changes to your own branch
5. Push your work back up to your fork
6. Submit a Pull Request so that we can review your changes

NOTE: Be sure to merge the latest changes from "upstream" before making a pull request!

Running Terraform Tests

We use Atmos to streamline how Terraform tests are run. It centralizes configuration and wraps common test workflows with easy-to-use commands.

All tests are located in the test/ folder.

Under the hood, tests are powered by Terratest together with our internal Test Helpers library, providing robust infrastructure validation.

Setup dependencies:

• Install Atmos (installation guide)
• Install Go 1.24+ or newer
• Install Terraform or OpenTofu

To run tests:

• Run all tests:

  atmos test run
  

• Clean up test artifacts:

  atmos test clean
  

• Explore additional test options:

  atmos test --help
  

The configuration for test commands is centrally managed. To review what's being imported, see the atmos.yaml file.

Learn more about our automated testing in our documentation or implementing custom commands with atmos.

🌎 Slack Community

Join our Open Source Community on Slack. It's FREE for everyone! Our "SweetOps" community is where you get to talk with others who share a similar vision for how to rollout and manage infrastructure. This is the best place to talk shop, ask questions, solicit feedback, and work together as a community to build totally sweet infrastructure.

📰 Newsletter

Sign up for our newsletter and join 3,000+ DevOps engineers, CTOs, and founders who get insider access to the latest DevOps trends, so you can always stay in the know. Dropped straight into your Inbox every week — and usually a 5-minute read.

📆 Office Hours

Join us every Wednesday via Zoom for your weekly dose of insider DevOps trends, AWS news and Terraform insights, all sourced from our SweetOps community, plus a live Q&A that you can’t find anywhere else. It's FREE for everyone!

License

Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
distributed with this work for additional information
regarding copyright ownership.  The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License.  You may obtain a copy of the License at

  https://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied.  See the License for the
specific language governing permissions and limitations
under the License.

Trademarks

All other trademarks referenced herein are the property of their respective owners.

Copyright © 2017-2026 Cloud Posse, LLC