terraform-aws-config

This module enables AWS Config and optionally sets up an SNS topic to receive notifications of its findings.

This project is part of our comprehensive "SweetOps" approach towards DevOps.

It's 100% Open Source and licensed under the APACHE2.

We literally have hundreds of terraform modules that are Open Source and well-maintained. Check them out!

Security & Compliance

Security scanning is graciously provided by Bridgecrew. Bridgecrew is the leading fully hosted, cloud-native solution providing continuous Terraform security and compliance.

Benchmark	Description
	Infrastructure Security Compliance
	Center for Internet Security, KUBERNETES Compliance
	Center for Internet Security, AWS Compliance
	Center for Internet Security, AZURE Compliance
	Payment Card Industry Data Security Standards Compliance
	National Institute of Standards and Technology Compliance
	Information Security Management System, ISO/IEC 27001 Compliance
	Service Organization Control 2 Compliance
	Center for Internet Security, GCP Compliance
	Health Insurance Portability and Accountability Compliance

Usage

IMPORTANT: We do not pin modules to versions in our examples because of the difficulty of keeping the versions in the documentation in sync with the latest released versions. We highly recommend that in your code you pin the version to the exact version you are using so that your infrastructure remains stable, and update versions in a systematic way so that they do not catch you by surprise.

Also, because of a bug in the Terraform registry (hashicorp/terraform#21417), the registry shows many of our inputs as required when in fact they are optional. The table below correctly indicates which inputs are required.

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 AWS), see test.

module "example" {
  source = "cloudposse/config/aws"
  # Cloud Posse recommends pinning every module to a specific version
  # version     = "x.x.x"

  create_sns_topic = true
  create_iam_role  = true

  managed_rules = {
    account-part-of-organizations = {
      description  = "Checks whether AWS account is part of AWS Organizations. The rule is NON_COMPLIANT if an AWS account is not part of AWS Organizations or AWS Organizations master account ID does not match rule parameter MasterAccountId.",
      identifier   = "ACCOUNT_PART_OF_ORGANIZATIONS",
      trigger_type = "PERIODIC"
      enabled      = true
    }
  }
}

Examples

Here is an example of using this module:

examples/complete - complete example of using this module

Makefile Targets

Available targets:

  help                                Help screen
  help/all                            Display help for all targets
  help/short                          This help short screen
  lint                                Lint terraform code

Requirements

Name	Version
terraform	>= 0.13.0
aws	>= 3.0

Providers

Name	Version
aws	>= 3.0

Modules

Name	Source	Version
aws_config_aggregator_label	cloudposse/label/null	0.25.0
aws_config_findings_label	cloudposse/label/null	0.25.0
aws_config_label	cloudposse/label/null	0.25.0
iam_role	cloudposse/iam-role/aws	0.15.0
sns_topic	cloudposse/sns-topic/aws	0.20.1
this	cloudposse/label/null	0.25.0

Resources

Name	Type
aws_config_aggregate_authorization.central	resource
aws_config_aggregate_authorization.child	resource
aws_config_config_rule.rules	resource
aws_config_configuration_aggregator.this	resource
aws_config_configuration_recorder.recorder	resource
aws_config_configuration_recorder_status.recorder_status	resource
aws_config_delivery_channel.channel	resource
aws_iam_role_policy_attachment.config_policy_attachment	resource
aws_caller_identity.this	data source
aws_iam_policy.aws_config_built_in_role	data source
aws_iam_policy_document.config_s3_policy	data source
aws_iam_policy_document.config_sns_policy	data source
aws_region.this	data source

Inputs

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
allowed_aws_services_for_sns_published	AWS services that will have permission to publish to SNS topic. Used when no external JSON policy is used	`list(string)`	`[]`	no
allowed_iam_arns_for_sns_publish	IAM role/user ARNs that will have permission to publish to SNS topic. Used when no external json policy is used.	`list(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
central_resource_collector_account	The account ID of a central account that will aggregate AWS Config from other accounts	`string`	`null`	no
child_resource_collector_accounts	The account IDs of other accounts that will send their AWS Configuration to this account	`set(string)`	`null`	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`	{ "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
create_iam_role	Flag to indicate whether an IAM Role should be created to grant the proper permissions for AWS Config	`bool`	`false`	no
create_sns_topic	Flag to indicate whether an SNS topic should be created for notifications If you want to send findings to a new SNS topic, set this to true and provide a valid configuration for subscribers	`bool`	`false`	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
disabled_aggregation_regions	A list of regions where config aggregation is disabled	`list(string)`	[ "ap-northeast-3" ]	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
findings_notification_arn	The ARN for an SNS topic to send findings notifications to. This is only used if create_sns_topic is false. If you want to send findings to an existing SNS topic, set the value of this to the ARN of the existing topic and set create_sns_topic to false.	`string`	`null`	no
force_destroy	A boolean that indicates all objects should be deleted from the bucket so that the bucket can be destroyed without error. These objects are not recoverable	`bool`	`false`	no
global_resource_collector_region	The region that collects AWS Config data for global resources such as IAM	`string`	n/a	yes
iam_role_arn	The ARN for an IAM Role AWS Config uses to make read or write requests to the delivery channel and to describe the AWS resources associated with the account. This is only used if create_iam_role is false. If you want to use an existing IAM Role, set the value of this to the ARN of the existing topic and set create_iam_role to false. See the AWS Docs for further information: http://docs.aws.amazon.com/config/latest/developerguide/iamrole-permissions.html	`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
managed_rules	A list of AWS Managed Rules that should be enabled on the account. See the following for a list of possible rules to enable: https://docs.aws.amazon.com/config/latest/developerguide/managed-rules-by-aws-config.html	map(object({ description = string identifier = string input_parameters = any tags = map(string) enabled = bool }))	`{}`	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
s3_bucket_arn	The ARN of the S3 bucket used to store the configuration history	`string`	n/a	yes
s3_bucket_id	The id (name) of the S3 bucket used to store the configuration history	`string`	n/a	yes
s3_key_prefix	The prefix for AWS Config objects stored in the the S3 bucket. If this variable is set to null, the default, no prefix will be used. Examples: with prefix: {S3_BUCKET NAME}:/{S3_KEY_PREFIX}/AWSLogs/{ACCOUNT_ID}/Config/. without prefix: {S3_BUCKET NAME}:/AWSLogs/{ACCOUNT_ID}/Config/.	`string`	`null`	no
sns_encryption_key_id	The ID of an AWS-managed customer master key (CMK) for Amazon SNS or a custom CMK.	`string`	`""`	no
sqs_queue_kms_master_key_id	The ID of an AWS-managed customer master key (CMK) for Amazon SQS Queue or a custom CMK	`string`	`""`	no
stage	ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release'	`string`	`null`	no
subscribers	A map of subscription configurations for SNS topics For more information, see: https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/sns_topic_subscription#argument-reference protocol: The protocol to use. The possible values for this are: sqs, sms, lambda, application. (http or https are partially supported, see link) (email is an option but is unsupported in terraform, see link). endpoint: The endpoint to send data to, the contents will vary with the protocol. (see link for more information) endpoint_auto_confirms (Optional): Boolean indicating whether the end point is capable of auto confirming subscription e.g., PagerDuty. Default is false raw_message_delivery (Optional): Boolean indicating whether or not to enable raw message delivery (the original message is directly passed, not wrapped in JSON with the original message in the message property). Default is false.	`map(any)`	`{}`	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
aws_config_configuration_recorder_id	The ID of the AWS Config Recorder
iam_role	IAM Role used to make read or write requests to the delivery channel and to describe the AWS resources associated with the account.
sns_topic	SNS topic
sns_topic_subscriptions	SNS topic subscriptions
storage_bucket_arn	Bucket ARN
storage_bucket_id	Bucket Name (aka ID)

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Related Projects

Check out these related projects.

terraform-null-label - Terraform module designed to generate consistent names and tags for resources. Use terraform-null-label to implement a strict naming convention.
terraform-aws-config-storage - Terraform module that creates an S3 bucket suitable for storing AWS Config data.
terraform-aws-guardduty - Terraform module that enables and configures AWS GuardDuty.
terraform-aws-security-hub - Terraform module that enables and configures AWS Security Hub.

References

For additional context, refer to some of these links.

List of AWS Config Managed Rules - A list of rules AWS Config currently supports in the analytics; compute; cryptography and PKI; database; machine learning; management and governance; migration and transfer; network and content delivery; security; identity and compliance; and storage categories.

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Copyrights

License

See LICENSE for full details.

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,
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Contributors

Matt Calhoun

Name		Name	Last commit message	Last commit date
Latest commit History 39 Commits
.github		.github
catalog		catalog
docs		docs
examples		examples
modules		modules
test		test
.editorconfig		.editorconfig
.gitignore		.gitignore
LICENSE		LICENSE
Makefile		Makefile
README.md		README.md
README.yaml		README.yaml
context.tf		context.tf
main.tf		main.tf
outputs.tf		outputs.tf
variables.tf		variables.tf
versions.tf		versions.tf

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