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terraform-aws-organization-access-group

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Terraform module to create an IAM Group and Policy to grant permissions to delegated IAM users in the Organization's master account to access a member account

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Terraform module to create an IAM Group and Policy to grant permissions to delegated IAM users in the Organization's master account to access a member account

https://docs.aws.amazon.com/organizations/latest/userguide/orgs_manage_accounts_access.html

> [!TIP]
> #### 👽 Use Atmos with Terraform
> Cloud Posse uses [`atmos`](https://atmos.tools) to easily orchestrate multiple environments using Terraform. 
> Works with [Github Actions](https://atmos.tools/integrations/github-actions/), [Atlantis](https://atmos.tools/integrations/atlantis), or [Spacelift](https://atmos.tools/integrations/spacelift).
>
> <details>
> <summary>Watch demo of using Atmos with Terraform</summary>
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> Example of running <a href="https://atmos.tools"><code>atmos</code></a> to manage infrastructure from our <a href="https://atmos.tools/quick-start/">Quick Start</a> tutorial.
> </detalis>

## Introduction

By default, when you create a member account as part of your Organization, AWS automatically creates `OrganizationAccountAccessRole` in the member account.

The role grants admin permissions to access the member account to delegated IAM users in the master account.

In the master account you need to create a Policy to grant permissions to IAM users to assume `OrganizationAccountAccessRole` in the member account.

This module does the following:

1. Creates an IAM Group
2. Adds the provided IAM users to the Group
3. Creates a Policy to grant permissions to the IAM users in the master account to assume `OrganizationAccountAccessRole` in the member account
4. Attaches the Policy to the Group

Users who are members of the Group will be able to assume the role and administer the member account by going here:

(change `XXXXXXXXXXXX` to the ID of the member account)

```
https://signin.aws.amazon.com/switchrole
                ?account=XXXXXXXXXXXX
                &roleName=OrganizationAccountAccessRole
                &displayName=Dev
```

__NOTE__: Member accounts that you invite to join your Organization (that are not part of your Organization) do not automatically get `OrganizationAccountAccessRole` created.
You can use [terraform-aws-organization-access-role](https://github.com/cloudposse/terraform-aws-organization-access-role) module to create `OrganizationAccountAccessRole` role in an invited member account.

## Usage

```hcl
module "organization_access_group" {
  source            = "git::https://github.com/cloudposse/terraform-aws-organization-access-group.git?ref=master"
  namespace         = "cp"
  stage             = "dev"
  name              = "cluster"
  user_names        = ["User1","User2"]
  role_arns         = {
    "cp@dev" = "arn:aws:iam::XXXXXXXXX:role/OrganizationAccountAccessRole"
  }
  require_mfa       = "true"
}
```

> [!IMPORTANT]
> In Cloud Posse's examples, we avoid pinning modules to specific versions to prevent discrepancies between the documentation
> and the latest released versions. However, for your own projects, we strongly advise pinning each module to the exact version
> you're using. This practice ensures the stability of your infrastructure. Additionally, we recommend implementing a systematic
> approach for updating versions to avoid unexpected changes.

## Requirements

No requirements.

## Providers

| Name | Version |
|------|---------|
| <a name="provider_aws"></a> [aws](#provider\_aws) | n/a |
| <a name="provider_null"></a> [null](#provider\_null) | n/a |

## Modules

| Name | Source | Version |
|------|--------|---------|
| <a name="module_label"></a> [label](#module\_label) | git::https://github.com/cloudposse/terraform-null-label.git | tags/0.3.3 |

## Resources

| Name | Type |
|------|------|
| [aws_iam_group.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_group) | resource |
| [aws_iam_group_policy.with_mfa](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_group_policy) | resource |
| [aws_iam_group_policy.without_mfa](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_group_policy) | resource |
| [aws_iam_user_group_membership.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_user_group_membership) | resource |
| [null_resource.role](https://registry.terraform.io/providers/hashicorp/null/latest/docs/resources/resource) | resource |
| [aws_iam_policy_document.with_mfa](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/iam_policy_document) | data source |
| [aws_iam_policy_document.without_mfa](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/iam_policy_document) | data source |

## Inputs

| Name | Description | Type | Default | Required |
|------|-------------|------|---------|:--------:|
| <a name="input_attributes"></a> [attributes](#input\_attributes) | Additional attributes (e.g. `1`) | `list(string)` | `[]` | no |
| <a name="input_delimiter"></a> [delimiter](#input\_delimiter) | Delimiter to be used between `namespace`, `stage`, `name`, and `attributes` | `string` | `"-"` | no |
| <a name="input_enabled"></a> [enabled](#input\_enabled) | Whether to create these resources | `string` | `"true"` | no |
| <a name="input_name"></a> [name](#input\_name) | Name (e.g. `app` or `cluster`) | `string` | n/a | yes |
| <a name="input_namespace"></a> [namespace](#input\_namespace) | Namespace (e.g. `cp` or `cloudposse`) | `string` | n/a | yes |
| <a name="input_require_mfa"></a> [require\_mfa](#input\_require\_mfa) | Require the users to have MFA enabled | `string` | `"false"` | no |
| <a name="input_role_arns"></a> [role\_arns](#input\_role\_arns) | A map of alias -> IAM Role ARNs the users in the Group can assume | `map(string)` | `{}` | no |
| <a name="input_stage"></a> [stage](#input\_stage) | Stage (e.g. `prod`, `dev`, `staging`, `infra`) | `string` | n/a | yes |
| <a name="input_switchrole_url_template"></a> [switchrole\_url\_template](#input\_switchrole\_url\_template) | URL template for the IAM console to switch to the roles | `string` | `"https://signin.aws.amazon.com/switchrole?account=%s&roleName=%s&displayName=%s"` | no |
| <a name="input_tags"></a> [tags](#input\_tags) | Additional tags (e.g. map(`BusinessUnit`,`XYZ`) | `map(string)` | `{}` | no |
| <a name="input_user_names"></a> [user\_names](#input\_user\_names) | A list of IAM User names to associate with the Group | `list(string)` | n/a | yes |

## Outputs

| Name | Description |
|------|-------------|
| <a name="output_group_arn"></a> [group\_arn](#output\_group\_arn) | The ARN assigned by AWS for the Group |
| <a name="output_group_id"></a> [group\_id](#output\_group\_id) | The Group's ID |
| <a name="output_group_name"></a> [group\_name](#output\_group\_name) | The Group's name |
| <a name="output_group_unique_id"></a> [group\_unique\_id](#output\_group\_unique\_id) | Group's unique ID assigned by AWS |
| <a name="output_policy_id"></a> [policy\_id](#output\_policy\_id) | The policy ID |
| <a name="output_policy_name"></a> [policy\_name](#output\_policy\_name) | The name of the policy |
| <a name="output_switchrole_urls"></a> [switchrole\_urls](#output\_switchrole\_urls) | List of URL to the IAM console to switch to the roles |

## Related Projects

Check out these related projects.

- [terraform-aws-organization-access-role](https://github.com/cloudposse/terraform-aws-organization-access-role) - Terraform module to create an IAM Role to grant permissions to delegated IAM users in the master account to access an invited member account

> [!TIP]
> #### Use Terraform Reference Architectures for AWS
>
> Use Cloud Posse's ready-to-go [terraform architecture blueprints](https://cloudposse.com/reference-architecture/) for AWS to get up and running quickly.
>
> ✅ We build it together with your team. 
> ✅ Your team owns everything. 
> ✅ 100% Open Source and backed by fanatical support. 
>
> <a href="https://cpco.io/commercial-support?utm_source=github&utm_medium=readme&utm_campaign=cloudposse/terraform-aws-organization-access-group&utm_content=commercial_support"><img alt="Request Quote" src="https://img.shields.io/badge/request%20quote-success.svg?style=for-the-badge"/></a>
> <details><summary>📚 Learn More</summary>
>
> 
>
> Cloud Posse is the leading [**DevOps Accelerator**](https://cpco.io/commercial-support?utm_source=github&utm_medium=readme&utm_campaign=cloudposse/terraform-aws-organization-access-group&utm_content=commercial_support) for funded startups and enterprises.
>
> *Your team can operate like a pro today.*
>
> Ensure that your team succeeds by using Cloud Posse's proven process and turnkey blueprints. Plus, we stick around until you succeed.
> #### Day-0: Your Foundation for Success
> - **Reference Architecture.** You'll get everything you need from the ground up built using 100% infrastructure as code.
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>
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>
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> - **Migration Assistance.** Accelerate your migration process with our dedicated support, minimizing disruption and speeding up time-to-value.
> - **Customer Workshops.** Engage with our team in weekly workshops, gaining insights and strategies to continuously improve and innovate.
>
> <a href="https://cpco.io/commercial-support?utm_source=github&utm_medium=readme&utm_campaign=cloudposse/terraform-aws-organization-access-group&utm_content=commercial_support"><img alt="Request Quote" src="https://img.shields.io/badge/request%20quote-success.svg?style=for-the-badge"/></a>
> </details>

## ✨ 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](https://github.com/cloudposse/terraform-aws-organization-access-group/issues).

In general, PRs are welcome. We follow the typical "fork-and-pull" Git workflow.
 1. Review our [Code of Conduct](https://github.com/cloudposse/terraform-aws-organization-access-group/?tab=coc-ov-file#code-of-conduct) and [Contributor Guidelines](https://github.com/cloudposse/.github/blob/main/CONTRIBUTING.md).
 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!

### 🌎 Slack Community

Join our [Open Source Community](https://cpco.io/slack?utm_source=github&utm_medium=readme&utm_campaign=cloudposse/terraform-aws-organization-access-group&utm_content=slack) 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.

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## License

<details>
<summary>Preamble to the Apache License, Version 2.0</summary>

Complete license is available in the [`LICENSE`](LICENSE) file.

```text
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.
```
</details>

## Trademarks

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

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