Awesome

Deploys AWS ssosync to sync Google Groups with AWS SSO.

AWS ssosync is a Lambda application that regularly manages Identity Store users.

This component requires manual deployment by a privileged user because it deploys a role in the root or identity management account.

Usage

You should be able to deploy the aws-ssosync component to the same account as aws-sso. Typically that is the core-gbl-root or gbl-root stack.

Stack Level: Global Deployment: Must be deployed by managers or SuperAdmin using atmos CLI

The following is an example snippet for how to use this component:

(stacks/catalog/aws-ssosync.yaml)

components:
  terraform:
    aws-ssosync:
      vars:
        enabled: true
        name: aws-ssosync
        google_admin_email: an-actual-admin@acme.com
        ssosync_url_prefix: "https://github.com/Benbentwo/ssosync/releases/download"
        ssosync_version: "2.0.2"
        google_credentials_ssm_path: "/ssosync"
        log_format: text
        log_level: debug
        schedule_expression: "rate(15 minutes)"

We recommend following a similar process to what the AWS ssosync documentation recommends.

Deployment

Overview of steps:

Configure AWS IAM Identity Center
Configure Google Cloud console
Configure Google Admin console
Deploy the aws-ssosync component
Deploy the aws-sso component

1. Configure AWS IAM Identity Center (AWS SSO)

Follow AWS documentation to configure SAML and SCIM with Google Workspace and IAM Identity Center.

As part of this process, save the SCIM endpoint token and URL. Then in AWS SSM Parameter Store, create two SecureString parameters in the same account used for AWS SSO. This is usually the root account in the primary region.

/ssosync/scim_endpoint_access_token
/ssosync/scim_endpoint_url

One more parameter you'll need is your Identity Store ID. To obtain your Identity Store ID, go to the AWS Identity Center console and select Settings. Under the Identity Source section, copy the Identity Store ID. In the same account used for AWS SSO, create the following parameter:

/ssosync/identity_store_id

2. Configure Google Cloud console

Within the Google Cloud console, we need to create a new Google Project and Service Account and enable the Admin SDK API. Follow these steps:

Open the Google Cloud console: https://console.cloud.google.com
Create a new project. Give the project a descriptive name such as AWS SSO Sync
Enable Admin SDK in APIs: APIs & Services > Enabled APIs & Services > + ENABLE APIS AND SERVICES

Enable Admin SDK # use raw URL so that this works in both GitHub and docusaurus

Create Service Account: IAM & Admin > Service Accounts > Create Service Account (ref).

Create Service Account # use raw URL so that this works in both GitHub and docusaurus

Download credentials for the new Service Account: IAM & Admin > Service Accounts > select Service Account > Keys > ADD KEY > Create new key > JSON

Download Credentials # use raw URL so that this works in both GitHub and docusaurus

Save the JSON credentials as a new SecureString AWS SSM parameter in the same account used for AWS SSO. Use the full JSON string as the value for the parameter.

/ssosync/google_credentials

3. Configure Google Admin console

Open the Google Admin console
From your domain’s Admin console, go to Main menu menu > Security > Access and data control > API controls (ref)
In the Domain wide delegation pane, select Manage Domain Wide Delegation.
Click Add new.
In the Client ID field, enter the client ID obtained from the service account creation steps above.
In the OAuth Scopes field, enter a comma-delimited list of the scopes required for your application. Use the scope https://www.googleapis.com/auth/cloud_search.query for search applications using the Query API.
Add the following permission: (ref)

https://www.googleapis.com/auth/admin.directory.group.readonly
https://www.googleapis.com/auth/admin.directory.group.member.readonly
https://www.googleapis.com/auth/admin.directory.user.readonly

4. Deploy the `aws-ssosync` component

Make sure that all four of the following SSM parameters exist in the target account and region:

/ssosync/scim_endpoint_url
/ssosync/scim_endpoint_access_token
/ssosync/identity_store_id
/ssosync/google_credentials

If deployed successfully, Groups and Users should be programmatically copied from the Google Workspace into AWS IAM Identity Center on the given schedule.

If these Groups are not showing up, check the CloudWatch logs for the new Lambda function and refer the FAQs included below.

5. Deploy the `aws-sso` component

Use the names of the Groups now provisioned programmatically in the aws-sso component catalog. Follow the aws-sso component documentation to deploy the aws-sso component.

FAQ

Why is the tool forked by `Benbentwo`?

The awslabs tool requires AWS Secrets Managers for the Google Credentials. However, we would prefer to use AWS SSM to store all credentials consistency and not require AWS Secrets Manager. Therefore we've created a Pull Request and will point to a fork until the PR is merged.

Ref:

What should I use for the Google Admin Email Address?

The Service Account created will assume the User given by --google-admin / SSOSYNC_GOOGLE_ADMIN / var.google_admin_email. Therefore, this user email must be a valid Google admin user in your organization.

This is not the same email as the Service Account.

If Google fails to query Groups, you may see the following error:

Notifying Lambda and mark this execution as Failure: googleapi: Error 404: Domain not found., notFound

Common Group Name Query Error

If filtering group names using query strings, make sure the provided string is valid. For example, google_group_match: "name:aws*" is incorrect. Instead use google_group_match: "Name:aws*"

If not, you may again see the same error message:

Notifying Lambda and mark this execution as Failure: googleapi: Error 404: Domain not found., notFound

Ref:

The specific error you are seeing is because the google api doesn't like the query string you provided for the -g parameter. try -g "Name:Fuel*"

https://github.com/awslabs/ssosync/issues/91

Requirements

Name	Version
<a name="requirement_terraform"></a> terraform	>= 1.0.0
<a name="requirement_archive"></a> archive	>= 2.3.0
<a name="requirement_aws"></a> aws	>= 4.0
<a name="requirement_null"></a> null	>= 3.0

Providers

Name	Version
<a name="provider_archive"></a> archive	>= 2.3.0
<a name="provider_aws"></a> aws	>= 4.0
<a name="provider_null"></a> null	>= 3.0

Modules

Name	Source	Version
<a name="module_ssosync_artifact"></a> ssosync_artifact	cloudposse/module-artifact/external	0.8.0
<a name="module_this"></a> this	cloudposse/label/null	0.25.0

Resources

Name	Type
aws_cloudwatch_event_rule.ssosync	resource
aws_cloudwatch_event_target.ssosync	resource
aws_iam_role.default	resource
aws_lambda_function.ssosync	resource
aws_lambda_permission.allow_cloudwatch_execution	resource
null_resource.extract_my_tgz	resource
archive_file.lambda	data source
aws_iam_policy_document.ssosync_lambda_assume_role	data source
aws_iam_policy_document.ssosync_lambda_identity_center	data source
aws_ssm_parameter.google_credentials	data source
aws_ssm_parameter.identity_store_id	data source
aws_ssm_parameter.scim_endpoint_access_token	data source
aws_ssm_parameter.scim_endpoint_url	data source

Inputs

Name	Description	Type	Default	Required
<a name="input_additional_tag_map"></a> additional_tag_map	Additional key-value pairs to add to each map in `tags_as_list_of_maps`. Not added to `tags` or `id`.<br/>This is for some rare cases where resources want additional configuration of tags<br/>and therefore take a list of maps with tag key, value, and additional configuration.	`map(string)`	`{}`	no
<a name="input_architecture"></a> architecture	Architecture of the Lambda function	`string`	`"x86_64"`	no
<a name="input_attributes"></a> attributes	ID element. Additional attributes (e.g. `workers` or `cluster`) to add to `id`,<br/>in the order they appear in the list. New attributes are appended to the<br/>end of the list. The elements of the list are joined by the `delimiter`<br/>and treated as a single ID element.	`list(string)`	`[]`	no
<a name="input_context"></a> context	Single object for setting entire context at once.<br/>See description of individual variables for details.<br/>Leave string and numeric variables as `null` to use default value.<br/>Individual variable settings (non-null) override settings in context object,<br/>except for attributes, tags, and additional_tag_map, which are merged.	`any`	<pre>{<br/> "additional_tag_map": {},<br/> "attributes": [],<br/> "delimiter": null,<br/> "descriptor_formats": {},<br/> "enabled": true,<br/> "environment": null,<br/> "id_length_limit": null,<br/> "label_key_case": null,<br/> "label_order": [],<br/> "label_value_case": null,<br/> "labels_as_tags": [<br/> "unset"<br/> ],<br/> "name": null,<br/> "namespace": null,<br/> "regex_replace_chars": null,<br/> "stage": null,<br/> "tags": {},<br/> "tenant": null<br/>}</pre>	no
<a name="input_delimiter"></a> delimiter	Delimiter to be used between ID elements.<br/>Defaults to `-` (hyphen). Set to `""` to use no delimiter at all.	`string`	`null`	no
<a name="input_descriptor_formats"></a> descriptor_formats	Describe additional descriptors to be output in the `descriptors` output map.<br/>Map of maps. Keys are names of descriptors. Values are maps of the form<br/>`{<br/> format = string<br/> labels = list(string)<br/>}`<br/>(Type is `any` so the map values can later be enhanced to provide additional options.)<br/>`format` is a Terraform format string to be passed to the `format()` function.<br/>`labels` is a list of labels, in order, to pass to `format()` function.<br/>Label values will be normalized before being passed to `format()` so they will be<br/>identical to how they appear in `id`.<br/>Default is `{}` (`descriptors` output will be empty).	`any`	`{}`	no
<a name="input_enabled"></a> enabled	Set to false to prevent the module from creating any resources	`bool`	`null`	no
<a name="input_environment"></a> environment	ID element. Usually used for region e.g. 'uw2', 'us-west-2', OR role 'prod', 'staging', 'dev', 'UAT'	`string`	`null`	no
<a name="input_google_admin_email"></a> google_admin_email	Google Admin email	`string`	n/a	yes
<a name="input_google_credentials_ssm_path"></a> google_credentials_ssm_path	SSM Path for `ssosync` secrets	`string`	`"/ssosync"`	no
<a name="input_google_group_match"></a> google_group_match	Google Workspace group filter query parameter, example: 'name:Admin* email:aws-*', see: https://developers.google.com/admin-sdk/directory/v1/guides/search-groups	`string`	`""`	no
<a name="input_google_user_match"></a> google_user_match	Google Workspace user filter query parameter, example: 'name:John* email:admin*', see: https://developers.google.com/admin-sdk/directory/v1/guides/search-users	`string`	`""`	no
<a name="input_id_length_limit"></a> id_length_limit	Limit `id` to this many characters (minimum 6).<br/>Set to `0` for unlimited length.<br/>Set to `null` for keep the existing setting, which defaults to `0`.<br/>Does not affect `id_full`.	`number`	`null`	no
<a name="input_ignore_groups"></a> ignore_groups	Ignore these Google Workspace groups	`string`	`""`	no
<a name="input_ignore_users"></a> ignore_users	Ignore these Google Workspace users	`string`	`""`	no
<a name="input_include_groups"></a> include_groups	Include only these Google Workspace groups. (Only applicable for sync_method user_groups)	`string`	`""`	no
<a name="input_label_key_case"></a> label_key_case	Controls the letter case of the `tags` keys (label names) for tags generated by this module.<br/>Does not affect keys of tags passed in via the `tags` input.<br/>Possible values: `lower`, `title`, `upper`.<br/>Default value: `title`.	`string`	`null`	no
<a name="input_label_order"></a> label_order	The order in which the labels (ID elements) appear in the `id`.<br/>Defaults to ["namespace", "environment", "stage", "name", "attributes"].<br/>You can omit any of the 6 labels ("tenant" is the 6th), but at least one must be present.	`list(string)`	`null`	no
<a name="input_label_value_case"></a> label_value_case	Controls the letter case of ID elements (labels) as included in `id`,<br/>set as tag values, and output by this module individually.<br/>Does not affect values of tags passed in via the `tags` input.<br/>Possible values: `lower`, `title`, `upper` and `none` (no transformation).<br/>Set this to `title` and set `delimiter` to `""` to yield Pascal Case IDs.<br/>Default value: `lower`.	`string`	`null`	no
<a name="input_labels_as_tags"></a> labels_as_tags	Set of labels (ID elements) to include as tags in the `tags` output.<br/>Default is to include all labels.<br/>Tags with empty values will not be included in the `tags` output.<br/>Set to `[]` to suppress all generated tags.<br/>Notes:<br/> The value of the `name` tag, if included, will be the `id`, not the `name`.<br/> Unlike other `null-label` inputs, the initial setting of `labels_as_tags` cannot be<br/> changed in later chained modules. Attempts to change it will be silently ignored.	`set(string)`	<pre>[<br/> "default"<br/>]</pre>	no
<a name="input_log_format"></a> log_format	Log format for Lambda function logging	`string`	`"json"`	no
<a name="input_log_level"></a> log_level	Log level for Lambda function logging	`string`	`"warn"`	no
<a name="input_name"></a> name	ID element. Usually the component or solution name, e.g. 'app' or 'jenkins'.<br/>This is the only ID element not also included as a `tag`.<br/>The "name" tag is set to the full `id` string. There is no tag with the value of the `name` input.	`string`	`null`	no
<a name="input_namespace"></a> 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
<a name="input_regex_replace_chars"></a> regex_replace_chars	Terraform regular expression (regex) string.<br/>Characters matching the regex will be removed from the ID elements.<br/>If not set, `"/[^a-zA-Z0-9-]/"` is used to remove all characters other than hyphens, letters and digits.	`string`	`null`	no
<a name="input_region"></a> region	AWS Region where AWS SSO is enabled	`string`	n/a	yes
<a name="input_schedule_expression"></a> schedule_expression	Schedule for trigger the execution of ssosync (see CloudWatch schedule expressions)	`string`	`"rate(15 minutes)"`	no
<a name="input_ssosync_url_prefix"></a> ssosync_url_prefix	URL prefix for ssosync binary	`string`	`"https://github.com/Benbentwo/ssosync/releases/download"`	no
<a name="input_ssosync_version"></a> ssosync_version	Version of ssosync to use	`string`	`"v2.0.2"`	no
<a name="input_stage"></a> stage	ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release'	`string`	`null`	no
<a name="input_sync_method"></a> sync_method	Sync method to use	`string`	`"groups"`	no
<a name="input_tags"></a> tags	Additional tags (e.g. `{'BusinessUnit': 'XYZ'}`).<br/>Neither the tag keys nor the tag values will be modified by this module.	`map(string)`	`{}`	no
<a name="input_tenant"></a> 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
<a name="output_arn"></a> arn	ARN of the lambda function
<a name="output_invoke_arn"></a> invoke_arn	Invoke ARN of the lambda function
<a name="output_qualified_arn"></a> qualified_arn	ARN identifying your Lambda Function Version (if versioning is enabled via publish = true)

References

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

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