diff --git a/CHANGELOG.md b/src/CHANGELOG.md similarity index 100% rename from CHANGELOG.md rename to src/CHANGELOG.md diff --git a/src/README.md b/src/README.md new file mode 100644 index 0000000..ea00fc7 --- /dev/null +++ b/src/README.md @@ -0,0 +1,333 @@ +--- +tags: + - component/aws-sso + - layer/identity + - provider/aws + - privileged +--- + +# Component: `identity` + +This component is responsible for creating [AWS SSO Permission Sets][1] and creating AWS SSO Account Assignments, that +is, assigning IdP (Okta) groups and/or users to AWS SSO permission sets in specific AWS Accounts. + +This component assumes that AWS SSO has already been enabled via the AWS Console (there isn't terraform or AWS CLI +support for this currently) and that the IdP has been configured to sync users and groups to AWS SSO. + +## Usage + +### Clickops + +1. Go to root admin account +1. Select primary region +1. Go to AWS SSO +1. Enable AWS SSO + +#### Delegation no longer recommended + +Previously, Cloud Posse recommended delegating SSO to the identity account by following the next 2 steps: + +1. Click Settings > Management +1. Delegate Identity as an administrator. This can take up to 30 minutes to take effect. + +However, this is no longer recommended. Because the delegated SSO administrator cannot make changes in the `root` +account and this component needs to be able to make changes in the `root` account, any purported security advantage +achieved by delegating SSO to the `identity` account is lost. + +Nevertheless, it is also not worth the effort to remove the delegation. If you have already delegated SSO to the +`identity`, continue on, leaving the stack configuration in the `gbl-identity` stack rather than the currently +recommended `gbl-root` stack. + +### Google Workspace + +> [!IMPORTANT] +> +> > Your identity source is currently configured as 'External identity provider'. To add new groups or edit their +> > memberships, you must do this using your external identity provider. +> +> Groups _cannot_ be created with ClickOps in the AWS console and instead must be created with AWS API. + +Google Workspace is now supported by AWS Identity Center, but Group creation is not automatically handled. After +[configuring SAML and SCIM with Google Workspace and IAM Identity Center following the AWS documentation](https://docs.aws.amazon.com/singlesignon/latest/userguide/gs-gwp.html), +add any Group name to `var.groups` to create the Group with Terraform. Once the setup steps as described in the AWS +documentation have been completed and the Groups are created with Terraform, Users should automatically populate each +created Group. + +```yaml +components: + terraform: + aws-sso: + vars: + groups: + - "Developers" + - "Dev Ops" +``` + +### Atmos + +**Stack Level**: Global **Deployment**: Must be deployed by root-admin using `atmos` CLI + +Add catalog to `gbl-root` root stack. + +#### `account_assignments` + +The `account_assignments` setting configures access to permission sets for users and groups in accounts, in the +following structure: + +```yaml +: + groups: + : + permission_sets: + - + users: + : + permission_sets: + - +``` + +- The account names (a.k.a. "stages") must already be configured via the `accounts` component. +- The user and group names must already exist in AWS SSO. Usually this is accomplished by configuring them in Okta and + syncing Okta with AWS SSO. +- The permission sets are defined (by convention) in files names `policy-.tf` in the `aws-sso` + component. The definition includes the name of the permission set. See + `components/terraform/aws-sso/policy-AdminstratorAccess.tf` for an example. + +#### `identity_roles_accessible` + +The `identity_roles_accessible` element provides a list of role names corresponding to roles created in the +`iam-primary-roles` component. For each named role, a corresponding permission set will be created which allows the user +to assume that role. The permission set name is generated in Terraform from the role name using this statement: + +``` +format("Identity%sTeamAccess", replace(title(role), "-", "")) +``` + +### Defining a new permission set + +1. Give the permission set a name, capitalized, in CamelCase, e.g. `AuditManager`. We will use `NAME` as a placeholder + for the name in the instructions below. In Terraform, convert the name to lowercase snake case, e.g. `audit_manager`. +2. Create a file in the `aws-sso` directory with the name `policy-NAME.tf`. +3. In that file, create a policy as follows: + + ```hcl + data "aws_iam_policy_document" "TerraformUpdateAccess" { + # Define the custom policy here + } + + locals { + NAME_permission_set = { # e.g. audit_manager_permission_set + name = "NAME", # e.g. AuditManager + description = "", + relay_state = "", + session_duration = "PT1H", # One hour, maximum allowed for chained assumed roles + tags = {}, + inline_policy = data.aws_iam_policy_document.NAME.json, + policy_attachments = [] # ARNs of AWS managed IAM policies to attach, e.g. arn:aws:iam::aws:policy/ReadOnlyAccess + customer_managed_policy_attachments = [] # ARNs of customer managed IAM policies to attach + } + } + ``` + +4. Create a file named `additional-permission-sets-list_override.tf` in the `aws-sso` directory (if it does not already + exist). This is a [terraform override file](https://developer.hashicorp.com/terraform/language/files/override), + meaning its contents will be merged with the main terraform file, and any locals defined in it will override locals + defined in other files. Having your code in this separate override file makes it possible for the component to + provide a placeholder local variable so that it works without customization, while allowing you to customize the + component and still update it without losing your customizations. +5. In that file, redefine the local variable `overridable_additional_permission_sets` as follows: + + ```hcl + locals { + overridable_additional_permission_sets = [ + local.NAME_permission_set, + ] + } + ``` + + If you have multiple custom policies, add each one to the list. + +6. With that done, the new permission set will be created when the changes are applied. You can then use it just like + the others. +7. If you want the permission set to be able to use Terraform, enable access to the Terraform state read/write (default) + role in `tfstate-backend`. + +#### Example + +The example snippet below shows how to use this module with various combinations (plain YAML, YAML Anchors and a +combination of the two): + +```yaml +prod-cloud-engineers: &prod-cloud-engineers + Production Cloud Infrastructure Engineers: + permission_sets: + - AdministratorAccess + - ReadOnlyAccess + +components: + terraform: + aws-sso: + vars: + account_assignments: + audit: + groups: + <<: *prod-cloud-engineers + Production Cloud Engineers: + permission_sets: + - ReadOnlyAccess + corp: + groups: *prod-cloud-engineers + prod: + groups: + Administrators: + permission_sets: + - AdministratorAccess + - ReadOnlyAccess + Developers: + permission_sets: + - ReadOnlyAccess + dev: + groups: + Administrators: + permission_sets: + - AdministratorAccess + - ReadOnlyAccess + Developers: + permission_sets: + - AdministratorAccess + - ReadOnlyAccess + aws_teams_accessible: + - "developers" + - "devops" + - "managers" + - "support" +``` + + + +## Requirements + +| Name | Version | +|------|---------| +| [terraform](#requirement\_terraform) | >= 1.0.0 | +| [aws](#requirement\_aws) | >= 4.0 | + +## Providers + +| Name | Version | +|------|---------| +| [aws](#provider\_aws) | >= 4.0 | + +## Modules + +| Name | Source | Version | +|------|--------|---------| +| [account\_map](#module\_account\_map) | cloudposse/stack-config/yaml//modules/remote-state | 1.5.0 | +| [iam\_roles](#module\_iam\_roles) | ../account-map/modules/iam-roles | n/a | +| [iam\_roles\_root](#module\_iam\_roles\_root) | ../account-map/modules/iam-roles | n/a | +| [permission\_sets](#module\_permission\_sets) | cloudposse/sso/aws//modules/permission-sets | 1.1.1 | +| [role\_map](#module\_role\_map) | ../account-map/modules/roles-to-principals | n/a | +| [sso\_account\_assignments](#module\_sso\_account\_assignments) | cloudposse/sso/aws//modules/account-assignments | 1.1.1 | +| [sso\_account\_assignments\_root](#module\_sso\_account\_assignments\_root) | cloudposse/sso/aws//modules/account-assignments | 1.1.1 | +| [tfstate](#module\_tfstate) | cloudposse/stack-config/yaml//modules/remote-state | 1.5.0 | +| [this](#module\_this) | cloudposse/label/null | 0.25.0 | + +## Resources + +| Name | Type | +|------|------| +| [aws_identitystore_group.manual](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/identitystore_group) | resource | +| [aws_iam_policy_document.assume_aws_team](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/iam_policy_document) | data source | +| [aws_iam_policy_document.dns_administrator_access](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/iam_policy_document) | data source | +| [aws_iam_policy_document.eks_read_only](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/iam_policy_document) | data source | +| [aws_iam_policy_document.terraform_update_access](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/iam_policy_document) | data source | +| [aws_partition.current](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/partition) | data source | +| [aws_ssoadmin_instances.this](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/ssoadmin_instances) | data source | + +## Inputs + +| Name | Description | Type | Default | Required | +|------|-------------|------|---------|:--------:| +| [account\_assignments](#input\_account\_assignments) | Enables access to permission sets for users and groups in accounts, in the following structure:
yaml
:
  groups:
    :
      permission_sets:
        - 
  users:
    :
      permission_sets:
        -
| 
map(map(map(object({
    permission_sets = list(string)
    }
  ))))
| `{}` | no | +| [additional\_tag\_map](#input\_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](#input\_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\_teams\_accessible](#input\_aws\_teams\_accessible) | List of IAM roles (e.g. ["admin", "terraform"]) for which to create permission
sets that allow the user to assume that role. Named like
admin -> IdentityAdminTeamAccess | `set(string)` | `[]` | no | +| [context](#input\_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](#input\_delimiter) | Delimiter to be used between ID elements.
Defaults to `-` (hyphen). Set to `""` to use no delimiter at all. | `string` | `null` | no | +| [descriptor\_formats](#input\_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
`{
format = string
labels = list(string)
}`
(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](#input\_enabled) | Set to false to prevent the module from creating any resources | `bool` | `null` | no | +| [environment](#input\_environment) | ID element. Usually used for region e.g. 'uw2', 'us-west-2', OR role 'prod', 'staging', 'dev', 'UAT' | `string` | `null` | no | +| [groups](#input\_groups) | List of AWS Identity Center Groups to be created with the AWS API.

When provisioning the Google Workspace Integration with AWS, Groups need to be created with API in order for automatic provisioning to work as intended. | `list(string)` | `[]` | no | +| [id\_length\_limit](#input\_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](#input\_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](#input\_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](#input\_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](#input\_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](#input\_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](#input\_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 | +| [privileged](#input\_privileged) | True if the user running the Terraform command already has access to the Terraform backend | `bool` | `false` | no | +| [regex\_replace\_chars](#input\_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](#input\_region) | AWS Region | `string` | n/a | yes | +| [stage](#input\_stage) | ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release' | `string` | `null` | no | +| [tags](#input\_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](#input\_tenant) | ID element \_(Rarely used, not included by default)\_. A customer identifier, indicating who this instance of a resource is for | `string` | `null` | no | +| [tfstate\_environment\_name](#input\_tfstate\_environment\_name) | The name of the environment where `tfstate-backend` is provisioned. If not set, the TerraformUpdateAccess permission set will not be created. | `string` | `null` | no | + +## Outputs + +| Name | Description | +|------|-------------| +| [group\_ids](#output\_group\_ids) | Group IDs created for Identity Center | +| [permission\_sets](#output\_permission\_sets) | Permission sets | +| [sso\_account\_assignments](#output\_sso\_account\_assignments) | SSO account assignments | + + + +## References + +- [cloudposse/terraform-aws-sso][39] + +[][40] + +[1]: https://docs.aws.amazon.com/singlesignon/latest/userguide/permissionsetsconcept.html +[2]: #requirement%5C_terraform +[3]: #requirement%5C_aws +[4]: #requirement%5C_external +[5]: #requirement%5C_local +[6]: #requirement%5C_template +[7]: #requirement%5C_utils +[8]: #provider%5C_aws +[9]: #module%5C_account%5C_map +[10]: #module%5C_permission%5C_sets +[11]: #module%5C_role%5C_prefix +[12]: #module%5C_sso%5C_account%5C_assignments +[13]: #module%5C_this +[14]: https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/iam_policy_document +[15]: https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/iam_policy_document +[16]: https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/iam_policy_document +[17]: #input%5C_account%5C_assignments +[18]: #input%5C_additional%5C_tag%5C_map +[19]: #input%5C_attributes +[20]: #input%5C_context +[21]: #input%5C_delimiter +[22]: #input%5C_enabled +[23]: #input%5C_environment +[24]: #input%5C_global%5C_environment%5C_name +[25]: #input%5C_iam%5C_primary%5C_roles%5C_stage%5C_name +[26]: #input%5C_id%5C_length%5C_limit +[27]: #input%5C_identity%5C_roles%5C_accessible +[28]: #input%5C_label%5C_key%5C_case +[29]: #input%5C_label%5C_order +[30]: #input%5C_label%5C_value%5C_case +[31]: #input%5C_name +[32]: #input%5C_namespace +[33]: #input%5C_privileged +[34]: #input%5C_regex%5C_replace%5C_chars +[35]: #input%5C_region +[36]: #input%5C_root%5C_account%5C_stage%5C_name +[37]: #input%5C_stage +[38]: #input%5C_tags +[39]: https://github.com/cloudposse/terraform-aws-sso +[40]: https://cpco.io/component + +[](https://cpco.io/homepage?utm_source=github&utm_medium=readme&utm_campaign=cloudposse-terraform-components/aws-identity-center&utm_content=)