Terraform module to provision Service Control Policies (SCP) for AWS Organizations, Organizational Units, and AWS accounts.
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Service Control Policies are configured in YAML configuration files.
We maintain a comprehensive catalog of SCP configurations and welcome contributions via pull request!
The example in this module uses the catalog to provision the SCPs on AWS.
The policies in the catalog/*-templates
files require parameters supplied via the parameters
input
to terraform-yaml-config.
For a complete example, see examples/complete.
For automated tests of the complete example using bats and Terratest (which tests and deploys the example on Datadog), see test.
module "yaml_config" {
source = "cloudposse/config/yaml"
# Cloud Posse recommends pinning every module to a specific version
# version = "x.x.x"
list_config_local_base_path = path.module
list_config_paths = ["catalog/*.yaml"]
context = module.this.context
}
module "yaml_config_with_parameters" {
source = "cloudposse/config/yaml"
# Cloud Posse recommends pinning every module to a specific version
# version = "x.x.x"
list_config_local_base_path = path.module
list_config_paths = ["https://raw.githubusercontent.com/cloudposse/terraform-aws-service-control-policies/0.12.0/catalog/s3-templates/DenyS3InNonSelectedRegion.yaml"]
parameters = {
"s3_regions_lockdown" = "us-*,eu-north-1"
}
context = module.this.context
}
data "aws_caller_identity" "this" {}
module "service_control_policies" {
source = "../../"
service_control_policy_statements = concat(module.yaml_config.list_configs, module.yaml_config_with_parameters.list_configs)
service_control_policy_description = var.service_control_policy_description
target_id = data.aws_caller_identity.this.account_id
context = module.this.context
}
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.
Review the complete example to see how to use this module.
Available targets:
help Help screen
help/all Display help for all targets
help/short This help short screen
lint Lint terraform code
Name | Version |
---|---|
terraform | >= 1.3 |
aws | >= 3.0 |
local | >= 1.3 |
Name | Version |
---|---|
aws | >= 3.0 |
Name | Source | Version |
---|---|---|
this | cloudposse/label/null | 0.25.0 |
Name | Type |
---|---|
aws_organizations_policy.this | resource |
aws_organizations_policy_attachment.this | resource |
aws_iam_policy_document.this | data source |
Name | Description | Type | Default | Required |
---|---|---|---|---|
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 |
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 |
{ |
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 beidentical 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 |
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 bechanged in later chained modules. Attempts to change it will be silently ignored. |
set(string) |
[ |
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 |
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 |
service_control_policy_description | Description of the combined Service Control Policy | string |
null |
no |
service_control_policy_statements | List of Service Control Policy statements | any |
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 |
target_id | The unique identifier (ID) of the organization root, organizational unit, or account number that you want to attach the policy to | string |
n/a | yes |
tenant | ID element _(Rarely used, not included by default)_. A customer identifier, indicating who this instance of a resource is for | string |
null |
no |
Name | Description |
---|---|
organizations_policy_arn | Amazon Resource Name (ARN) of the policy |
organizations_policy_id | The unique identifier of the policy |
Check out these related projects.
- terraform-aws-iam-role - A Terraform module that creates IAM role with provided JSON IAM polices documents.
- terraform-aws-iam-policy-document-aggregator - Terraform module to aggregate multiple IAM policy documents into single policy document
- terraform-aws-iam-chamber-s3-role - Terraform module to provision an IAM role with configurable permissions to access S3 as chamber backend.
- terraform-yaml-config - Terraform module to convert local and remote YAML configuration templates into Terraform lists and maps.
For additional context, refer to some of these links.
- Service control policies - Service control policies (SCPs) are a type of organization policy that you can use to manage permissions in your organization.
- Example service control policies - Examples of Service Control Policies (SCPs).
- SCP syntax - Service control policies (SCPs) use a similar syntax to that used by AWS Identity and Access Management (IAM) permission policies and resource-based policies.
- Terraform Standard Module Structure - HashiCorp's standard module structure is a file and directory layout we recommend for reusable modules distributed in separate repositories.
- Terraform Module Requirements - HashiCorp's guidance on all the requirements for publishing a module. Meeting the requirements for publishing a module is extremely easy.
- Terraform
random_integer
Resource - The resource random_integer generates random values from a given range, described by the min and max attributes of a given resource. - Terraform Version Pinning - The required_version setting can be used to constrain which versions of the Terraform CLI can be used with your configuration
- SCPs size limits - The SCP have a size limit and creating many policies at once can result in a POLICY_CONTENT_LIMIT_EXCEEDED error
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