Component: `account`

This component is responsible for provisioning the full account hierarchy along with Organizational Units (OUs). It includes the ability to associate Service Control Policies (SCPs) to the Organization, each Organizational Unit and account.

Part of a

cold start so it has to be initially run with SuperAdmin role.

In addition, it enables AWS IAM Access Analyzer, which helps you identify the resources in your organization and accounts, such as Amazon S3 buckets or IAM roles, that are shared with an external entity. This lets you identify unintended access to your resources and data, which is a security risk. Access Analyzer identifies resources that are shared with external principals by using logic-based reasoning to analyze the resource-based policies in your AWS environment. For each instance of a resource that is shared outside of your account, Access Analyzer generates a finding. Findings include information about the access and the external principal that it is granted to. You can review findings to determine whether the access is intended and safe, or the access is unintended and a security risk.

Usage

Stack Level: Global

IMPORTANT: Account Name building blocks (such as tenant, stage, environment) must not contain dashes. Doing so will lead to unpredictable resource names as a - is the default delimiter. Additionally, account names must be lower case alpha-numeric with no special characters. For example:

Key	Value	Correctness
Tenant	foo	✅
Tenant	foo-bar	❌
Environment	use1	✅
Environment	us-east-1	❌
Account Name	`core-identity`	✅

Here is an example snippet for how to use this component. Include this snippet in the stack configuration for the management account (typically root) in the management tenant/OU (usually something like mgmt or core) in the global region (gbl). You can insert the content directly, or create a stacks/catalog/account.yaml file and import it from there.

components:
  terraform:
    account:
      settings:
        spacelift:
          workspace_enabled: false
      backend:
        s3:
          role_arn: null
      vars:
        enabled: true
        account_email_format: aws+%[email protected]
        account_iam_user_access_to_billing: ALLOW
        organization_enabled: true
        aws_service_access_principals:
          - cloudtrail.amazonaws.com
          - guardduty.amazonaws.com
          - ipam.amazonaws.com
          - ram.amazonaws.com
          - securityhub.amazonaws.com
          - servicequotas.amazonaws.com
          - sso.amazonaws.com
          - securityhub.amazonaws.com
          - auditmanager.amazonaws.com
        enabled_policy_types:
          - SERVICE_CONTROL_POLICY
          - TAG_POLICY
        organization_config:
          root_account:
            name: core-root
            stage: root
            tenant: core
            tags:
              eks: false
          accounts: []
          organization:
            service_control_policies:
              - DenyEC2InstancesWithoutEncryptionInTransit
          organizational_units:
            - name: core
              accounts:
                - name: core-artifacts
                  tenant: core
                  stage: artifacts
                  tags:
                    eks: false
                - name: core-audit
                  tenant: core
                  stage: audit
                  tags:
                    eks: false
                - name: core-auto
                  tenant: core
                  stage: auto
                  tags:
                    eks: true
                - name: core-corp
                  tenant: core
                  stage: corp
                  tags:
                    eks: true
                - name: core-dns
                  tenant: core
                  stage: dns
                  tags:
                    eks: false
                - name: core-identity
                  tenant: core
                  stage: identity
                  tags:
                    eks: false
                - name: core-network
                  tenant: core
                  stage: network
                  tags:
                    eks: false
                - name: core-security
                  tenant: core
                  stage: security
                  tags:
                    eks: false
              service_control_policies:
                - DenyLeavingOrganization
            - name: plat
              accounts:
                - name: plat-dev
                  tenant: plat
                  stage: dev
                  tags:
                    eks: true
                - name: plat-sandbox
                  tenant: plat
                  stage: sandbox
                  tags:
                    eks: true
                - name: plat-staging
                  tenant: plat
                  stage: staging
                  tags:
                    eks: true
                - name: plat-prod
                  tenant: plat
                  stage: prod
                  tags:
                    eks: true
              service_control_policies:
                - DenyLeavingOrganization
        service_control_policies_config_paths:
          # These paths specify where to find the service control policies identified by SID in the service_control_policies sections above.
          - "https://raw.githubusercontent.com/cloudposse/terraform-aws-service-control-policies/0.12.0/catalog/cloudwatch-logs-policies.yaml"
          - "https://raw.githubusercontent.com/cloudposse/terraform-aws-service-control-policies/0.12.0/catalog/deny-all-policies.yaml"
          - "https://raw.githubusercontent.com/cloudposse/terraform-aws-service-control-policies/0.12.0/catalog/iam-policies.yaml"
          - "https://raw.githubusercontent.com/cloudposse/terraform-aws-service-control-policies/0.12.0/catalog/kms-policies.yaml"
          - "https://raw.githubusercontent.com/cloudposse/terraform-aws-service-control-policies/0.12.0/catalog/organization-policies.yaml"
          - "https://raw.githubusercontent.com/cloudposse/terraform-aws-service-control-policies/0.12.0/catalog/route53-policies.yaml"
          - "https://raw.githubusercontent.com/cloudposse/terraform-aws-service-control-policies/0.12.0/catalog/s3-policies.yaml"
          - "https://raw.githubusercontent.com/cloudposse/terraform-aws-service-control-policies/0.12.0/catalog/ec2-policies.yaml"

First Time Organization Setup

Your AWS Organization is managed by the account component, along with accounts and organizational units.

However, because the AWS defaults for an Organization and its accounts are not exactly what we want, and there is no way to change them via Terraform, we have to first provision the AWS Organization, then take some steps on the AWS console, and then we can provision the rest.

Use AWS Console to create and set up the Organization

Unfortunately, there are some tasks that need to be done via the console. Log into the AWS Console with the root (not SuperAdmin) credentials you have saved in 1Password.

Request an increase in the maximum number of accounts allowed

Make sure your support plan for the root account was upgraded to the "Business" level (or Higher). This is

necessary to expedite the quota increase requests, which could take several days on a basic support plan. Without it, AWS support will claim that since we’re not currently utilizing any of the resources, so they do not want to approve the requests. AWS support is not aware of your other organization. If AWS still gives you problems, please escalate to your AWS TAM. See AWS.

From the region list, select "US East (N. Virginia) us-east-1".
From the account dropdown menu, select "My Service Quotas".
From the Sidebar, select "AWS Services".
Type "org" in the search field under "AWS services"
Click on "AWS Organizations" in the "Service" list
Click on "Default maximum number of accounts", which should take you to a new view
Click on "Request quota increase" on the right side of the view, which should pop us a request form
At the bottom of the form, under "Change quota value", enter the number you decided on in the previous step (probably "20") and click "Request"

(Optional) Create templates to request other quota increases

New accounts start with a low limit on the number of instances you can create. However, as you add accounts, and use more instances, the numbers automatically adjust up. So you may or may not want to create a template to generate automatic quota increase requests, depending on how many instances per account you expect to want to provision right away.

Create a Quota request template for the organization. From the Sidebar, click "Quota request template"

Add each EC2 quota increase request you want to make:

Click "Add Quota" on the right side of the view
Under "Region", select your default region (repeat with the backup region if you are using one)
Under "Service", type "EC2" and select "Amazon Elastic Compute Cloud (Amazon EC2)"
Under "Quota", find the quota you want to increase. The likely candidates are:
type "stand" and select "Running On-Demand Standard (A, C, D, H, I, M, R, T, Z) Instances"
type "stand" and select "All Standard (A, C, D, H, I, M, R, T, Z) Spot Instance Request"
type "g i" and select "Running On-Demand G Instances"
type "all g" and select "All G Spot Instance Requests"
Under "Desired quota value" enter your desired default quota
Click "Add"

After you have added all the templates, click "Enable" on the Quota request template screen to enable the templates.

AWS Resource Access Manager (RAM) lets you share your resources with any AWS account or through AWS Organizations.

If you have multiple AWS accounts, you can create resources centrally and use AWS RAM to share those resources with other accounts.

Resource sharing through AWS Organization will be used to share the Transit Gateway deployed in the network account with other accounts to connect their VPCs to the shared Transit Gateway.

This is a one-time manual step in the AWS Resource Access Manager console. When you share resources within your organization, AWS RAM does not send invitations to principals. Principals in your organization get access to shared resources without exchanging invitations.

To enable resource sharing with AWS Organization via AWS Management Console

Open the Settings page of AWS Resource Access Manager console at https://console.aws.amazon.com/ram/home#Settings
Choose "Enable sharing with AWS Organizations"

To enable resource sharing with AWS Organization via AWS CLI

 √ . [xamp-SuperAdmin] (HOST) infra ⨠ aws ram enable-sharing-with-aws-organization
{
    "returnValue": true
}

For more information, see:

Import the organization into Terraform using the `account` component

After we are done with the above ClickOps and the Service Quota Increase for maximum number of accounts has been granted, we can then do the rest via Terraform.

In the Geodesic shell, as SuperAdmin, execute the following command to get the AWS Organization ID that will be used to import the organization:

aws organizations describe-organization

From the output, identify the organization-id:

{
    "Organization": {
        "Id": "o-7qcakq6zxw",
        "Arn": "arn:aws:organizations::
        ...

Using the example above, the organization-id is o-7qcakq6zxw.

In the Geodesic shell, as SuperAdmin, execute the following command to import the AWS Organization, changing the stack name core-gbl-root if needed, to reflect the stack where the organization management account is defined, and changing the last argument to reflect the organization-id from the output of the previous command.

atmos terraform import account --stack core-gbl-root 'aws_organizations_organization.this[0]' 'o-7qcakq6zxw'

Provision AWS OUs and Accounts using the `account` component

AWS accounts and organizational units are generated dynamically by the terraform/account component using the configuration in the gbl-root stack.

Special note: **** In the rare case where you will need to be enabling non-default AWS Regions,

temporarily comment out the DenyRootAccountAccess service control policy setting in gbl-root.yaml. You will restore it later, after enabling the optional Regions. See related: Decide on Opting Into Non-default Regions

You must wait until your quota increase request has been granted. If you try to create the accounts

before the quota increase is granted, you can expect to see failures like ACCOUNT_NUMBER_LIMIT_EXCEEDED.

In the Geodesic shell, execute the following commands to provision AWS Organizational Units and AWS accounts:

atmos terraform apply account --stack gbl-root

Review the Terraform plan, ensure that no new organization will be created (look for aws_organizations_organization.this[0]), type "yes" to approve and apply. This creates the AWS organizational units and AWS accounts.

Configure root account credentials for each account

Note: unless you need to enable non-default AWS regions (see next step), this step can be done later or in parallel with other steps, for example while waiting for Terraform to create resources.

For each new account:

Perform a password reset by attempting to log in to the AWS console as a "root user", using that account's email address, and then clicking the "Forgot password?" link. You will receive a password reset link via email, which should be forwarded to the shared Slack channel for automated messages. Click the link and enter a new password. (Use 1Password or Random.org to create a password 26-38 characters long, including at least 3 of each class of character: lower case, uppercase, digit, and symbol. You may need to manually combine or add to the generated password to ensure 3 symbols and digits are present.) Save the email address and generated password as web login credentials in 1Password. While you are at it, save the account number in a separate field.
Log in using the new password, choose "My Security Credentials" from the account dropdown menu and set up Multi-Factor Authentication (MFA) to use a Virutal MFA device. Save the MFA TOTP key in 1Password by using 1Password's TOTP field and built-in screen scanner. Also, save the Virutal MFA ARN (sometimes shown as "serial number").
While logged in, enable optional regions as described in the next step, if needed.
(Optional, but highly recommended): Unsubscribe the account's email address from all marketing emails.

(Optional) Enable regions

Most AWS regions are enabled by default. If you are using a region that is not enabled by default (such as Middle East/Bahrain), you need to take extra steps.

While logged in using root credentials (see the previous step), in the account dropdown menu, select "My Account" to get to the Billing home page.
In the "AWS Regions" section, enable the regions you want to enable.
Go to the IAM account settings page and edit the STS Global endpoint to create session tokens valid in all AWS regions.

You will need to wait a few minutes for the regions to be enabled before you can proceed to the next step. Until they are enabled, you may get what look like AWS authentication or permissions errors.

After enabling the regions in all accounts, re-enable the DenyRootAccountAccess service control policy setting in gbl-root.yaml and rerun

atmos terraform apply account --stack gbl-root

Requirements

Name	Version
terraform	>= 1.0.0
aws	>= 4.9.0

Providers

Name	Version
aws	>= 4.9.0

Modules

Name	Source	Version
accounts_service_control_policies	cloudposse/service-control-policies/aws	0.9.2
organization_service_control_policies	cloudposse/service-control-policies/aws	0.9.2
organizational_units_service_control_policies	cloudposse/service-control-policies/aws	0.9.2
service_control_policy_statements_yaml_config	cloudposse/config/yaml	1.0.2
this	cloudposse/label/null	0.25.0

Resources

Name	Type
aws_organizations_account.organization_accounts	resource
aws_organizations_account.organizational_units_accounts	resource
aws_organizations_organization.this	resource
aws_organizations_organizational_unit.child	resource
aws_organizations_organizational_unit.this	resource
aws_organizations_organization.existing	data source

Inputs

Name	Description	Type	Default	Required
account_email_format	Email address format for the accounts (e.g. `aws+%[email protected]`)	`string`	n/a	yes
account_iam_user_access_to_billing	If set to `ALLOW`, the new account enables IAM users to access account billing information if they have the required permissions. If set to `DENY`, then only the root user of the new account can access account billing information	`string`	`"DENY"`	no
additional_tag_map	Additional key-value pairs to add to each map in `tags_as_list_of_maps`. Not added to `tags` or `id`. This is for some rare cases where resources want additional configuration of tags and therefore take a list of maps with tag key, value, and additional configuration.	`map(string)`	`{}`	no
attributes	ID element. Additional attributes (e.g. `workers` or `cluster`) to add to `id`, in the order they appear in the list. New attributes are appended to the end of the list. The elements of the list are joined by the `delimiter` and treated as a single ID element.	`list(string)`	`[]`	no
aws_service_access_principals	List of AWS service principal names for which you want to enable integration with your organization. This is typically in the form of a URL, such as service-abbreviation.amazonaws.com. Organization must have `feature_set` set to ALL. For additional information, see the AWS Organizations User Guide	`list(string)`	n/a	yes
context	Single object for setting entire context at once. See description of individual variables for details. Leave string and numeric variables as `null` to use default value. Individual variable settings (non-null) override settings in context object, except for attributes, tags, and additional_tag_map, which are merged.	`any`	`{ "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 }`	no
delimiter	Delimiter to be used between ID elements. Defaults to `-` (hyphen). Set to `""` to use no delimiter at all.	`string`	`null`	no
descriptor_formats	Describe additional descriptors to be output in the `descriptors` output map. Map of maps. Keys are names of descriptors. Values are maps of the form `{<br/> format = string<br/> labels = list(string)<br/>}` (Type is `any` so the map values can later be enhanced to provide additional options.) `format` is a Terraform format string to be passed to the `format()` function. `labels` is a list of labels, in order, to pass to `format()` function. Label values will be normalized before being passed to `format()` so they will be identical to how they appear in `id`. Default is `{}` (`descriptors` output will be empty).	`any`	`{}`	no
enabled	Set to false to prevent the module from creating any resources	`bool`	`null`	no
enabled_policy_types	List of Organizations policy types to enable in the Organization Root. Organization must have feature_set set to ALL. For additional information about valid policy types (e.g. SERVICE_CONTROL_POLICY and TAG_POLICY), see the AWS Organizations API Reference	`list(string)`	n/a	yes
environment	ID element. Usually used for region e.g. 'uw2', 'us-west-2', OR role 'prod', 'staging', 'dev', 'UAT'	`string`	`null`	no
id_length_limit	Limit `id` to this many characters (minimum 6). Set to `0` for unlimited length. Set to `null` for keep the existing setting, which defaults to `0`. Does not affect `id_full`.	`number`	`null`	no
label_key_case	Controls the letter case of the `tags` keys (label names) for tags generated by this module. Does not affect keys of tags passed in via the `tags` input. Possible values: `lower`, `title`, `upper`. Default value: `title`.	`string`	`null`	no
label_order	The order in which the labels (ID elements) appear in the `id`. Defaults to ["namespace", "environment", "stage", "name", "attributes"]. You can omit any of the 6 labels ("tenant" is the 6th), but at least one must be present.	`list(string)`	`null`	no
label_value_case	Controls the letter case of ID elements (labels) as included in `id`, set as tag values, and output by this module individually. Does not affect values of tags passed in via the `tags` input. Possible values: `lower`, `title`, `upper` and `none` (no transformation). Set this to `title` and set `delimiter` to `""` to yield Pascal Case IDs. Default value: `lower`.	`string`	`null`	no
labels_as_tags	Set of labels (ID elements) to include as tags in the `tags` output. Default is to include all labels. Tags with empty values will not be included in the `tags` output. Set to `[]` to suppress all generated tags. Notes: The value of the `name` tag, if included, will be the `id`, not the `name`. Unlike other `null-label` inputs, the initial setting of `labels_as_tags` cannot be changed in later chained modules. Attempts to change it will be silently ignored.	`set(string)`	`[ "default" ]`	no
name	ID element. Usually the component or solution name, e.g. 'app' or 'jenkins'. This is the only ID element not also included as a `tag`. The "name" tag is set to the full `id` string. There is no tag with the value of the `name` input.	`string`	`null`	no
namespace	ID element. Usually an abbreviation of your organization name, e.g. 'eg' or 'cp', to help ensure generated IDs are globally unique	`string`	`null`	no
organization_config	Organization, Organizational Units and Accounts configuration	`any`	n/a	yes
organization_enabled	A boolean flag indicating whether to create an Organization or use the existing one	`bool`	`true`	no
regex_replace_chars	Terraform regular expression (regex) string. Characters matching the regex will be removed from the ID elements. If not set, `"/[^a-zA-Z0-9-]/"` is used to remove all characters other than hyphens, letters and digits.	`string`	`null`	no
region	AWS Region	`string`	n/a	yes
service_control_policies_config_paths	List of paths to Service Control Policy configurations	`list(string)`	n/a	yes
stage	ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release'	`string`	`null`	no
tags	Additional tags (e.g. `{'BusinessUnit': 'XYZ'}`). Neither the tag keys nor the tag values will be modified by this module.	`map(string)`	`{}`	no
tenant	ID element _(Rarely used, not included by default)_. A customer identifier, indicating who this instance of a resource is for	`string`	`null`	no

Outputs

Name	Description
account_arns	List of account ARNs (excluding root account)
account_ids	List of account IDs (excluding root account)
account_info_map	Map of account names to eks: boolean, account hosts at least one EKS cluster id: account id (number) stage: (optional) the account "stage" tenant: (optional) the account "tenant"
account_names_account_arns	Map of account names to account ARNs (excluding root account)
account_names_account_ids	Map of account names to account IDs (excluding root account)
account_names_account_scp_arns	Map of account names to SCP ARNs for accounts with SCPs
account_names_account_scp_ids	Map of account names to SCP IDs for accounts with SCPs
eks_accounts	List of EKS accounts
non_eks_accounts	List of non EKS accounts
organization_arn	Organization ARN
organization_id	Organization ID
organization_master_account_arn	Organization master account ARN
organization_master_account_email	Organization master account email
organization_master_account_id	Organization master account ID
organization_scp_arn	Organization Service Control Policy ARN
organization_scp_id	Organization Service Control Policy ID
organizational_unit_arns	List of Organizational Unit ARNs
organizational_unit_ids	List of Organizational Unit IDs
organizational_unit_names_organizational_unit_arns	Map of Organizational Unit names to Organizational Unit ARNs
organizational_unit_names_organizational_unit_ids	Map of Organizational Unit names to Organizational Unit IDs
organizational_unit_names_organizational_unit_scp_arns	Map of OU names to SCP ARNs
organizational_unit_names_organizational_unit_scp_ids	Map of OU names to SCP IDs

References

cloudposse/terraform-aws-components - Cloud Posse's upstream component

Component: account

Usage​

First Time Organization Setup​

Use AWS Console to create and set up the Organization​

Request an increase in the maximum number of accounts allowed​

(Optional) Create templates to request other quota increases​

Enable resource sharing with AWS Organization​

Import the organization into Terraform using the account component​

Provision AWS OUs and Accounts using the account component​

Configure root account credentials for each account​

(Optional) Enable regions​

Requirements​

Providers​

Modules​

Resources​

Inputs​

Outputs​

References​