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Service Catalog Version 0.100.0Last updated in version 0.98.0

Account Baseline for app accounts

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Overview

A security baseline for AWS Landing Zone for configuring the app accounts (dev, stage, prod, and other similar child accounts), including setting up AWS Config, AWS CloudTrail, Amazon Guard Duty, IAM users, IAM groups, IAM password policy, and more.

Features

Get a secure baseline for the app accounts of your AWS Organization that includes:

Learn

note

This repo is a part of the Gruntwork Service Catalog, a collection of reusable, battle-tested, production ready infrastructure code. If you’ve never used the Service Catalog before, make sure to read How to use the Gruntwork Service Catalog!

Core concepts

Repo organization

  • modules: the main implementation code for this repo, broken down into multiple standalone, orthogonal submodules.
  • examples: This folder contains working examples of how to use the submodules.
  • test: Automated tests for the modules and examples.

Deploy

Non-production deployment (quick start for learning)

If you just want to try this repo out for experimenting and learning, check out the following resources:

Production deployment

If you want to deploy this repo in production, check out the following resources:

Reference

Required

aws_account_idstringrequired

The AWS Account ID the template should be operated on. This avoids misconfiguration errors caused by environment variables.

aws_regionstringrequired

The AWS Region to use as the global config recorder and seed region for GuardDuty.

config_opt_in_regionslist(string)required

Creates resources in the specified regions. The best practice is to enable AWS Config in all enabled regions in your AWS account. This variable must NOT be set to null or empty. Otherwise, we won't know which regions to use and authenticate to, and may use some not enabled in your AWS account (e.g., GovCloud, China, etc). To get the list of regions enabled in your AWS account, you can use the AWS CLI: aws ec2 describe-regions.

ebs_opt_in_regionslist(string)required

Creates resources in the specified regions. The best practice is to enable EBS Encryption in all enabled regions in your AWS account. This variable must NOT be set to null or empty. Otherwise, we won't know which regions to use and authenticate to, and may use some not enabled in your AWS account (e.g., GovCloud, China, etc). To get the list of regions enabled in your AWS account, you can use the AWS CLI: aws ec2 describe-regions. The value provided for global_recorder_region must be in this list.

guardduty_opt_in_regionslist(string)required

Creates resources in the specified regions. The best practice is to enable GuardDuty in all enabled regions in your AWS account. This variable must NOT be set to null or empty. Otherwise, we won't know which regions to use and authenticate to, and may use some not enabled in your AWS account (e.g., GovCloud, China, etc). To get the list of regions enabled in your AWS account, you can use the AWS CLI: aws ec2 describe-regions. The value provided for global_recorder_region must be in this list.

Creates resources in the specified regions. The best practice is to enable IAM Access Analyzer in all enabled regions in your AWS account. This variable must NOT be set to null or empty. Otherwise, we won't know which regions to use and authenticate to, and may use some not enabled in your AWS account (e.g., GovCloud, China, etc). To get the list of regions enabled in your AWS account, you can use the AWS CLI: aws ec2 describe-regions. The value provided for global_recorder_region must be in this list.

kms_cmk_opt_in_regionslist(string)required

Creates resources in the specified regions. This variable must NOT be set to null or empty. Otherwise, we won't know which regions to use and authenticate to, and may use some not enabled in your AWS account (e.g., GovCloud, China, etc). To get the list of regions enabled in your AWS account, you can use the AWS CLI: aws ec2 describe-regions. The value provided for global_recorder_region must be in this list.

name_prefixstringrequired

The name used to prefix AWS Config and Cloudtrail resources, including the S3 bucket names and SNS topics used for each.

Optional

additional_config_rulesmap(object(…))optional

Map of additional managed rules to add. The key is the name of the rule (e.g. ´acm-certificate-expiration-check´) and the value is an object specifying the rule details

map(object({
# Description of the rule
description : string
# Identifier of an available AWS Config Managed Rule to call.
identifier : string
# Trigger type of the rule, must be one of ´CONFIG_CHANGE´ or ´PERIODIC´.
trigger_type : string
# A map of input parameters for the rule. If you don't have parameters, pass in an empty map ´{}´.
input_parameters : map(string)
# Whether or not this applies to global (non-regional) resources like IAM roles. When true, these rules are disabled
# if var.enable_global_resource_rules is false.
applies_to_global_resources = bool
}))
{}

Map of github repositories to the list of branches that are allowed to assume the IAM role. The repository should be encoded as org/repo-name (e.g., gruntwork-io/terrraform-aws-ci). Allows GitHub Actions to assume the auto deploy IAM role using an OpenID Connect Provider for the given repositories. Refer to the docs for github-actions-iam-role for more information. Note that this is mutually exclusive with allow_auto_deploy_from_other_account_arns. Only used if enable_github_actions_access is true.

map(list(string))
{}

A list of IAM ARNs from other AWS accounts that will be allowed to assume the auto deploy IAM role that has the permissions in auto_deploy_permissions.

[]

The ARN of the policy that is used to set the permissions boundary for the IAM role

null

A list of IAM ARNs from other AWS accounts that will be allowed full (read and write) access to the billing info for this account.

[]

The ARN of the policy that is used to set the permissions boundary for the IAM role

null

If true, an IAM Policy that grants access to CloudTrail will be honored. If false, only the ARNs listed in kms_key_user_iam_arns will have access to CloudTrail and any IAM Policy grants will be ignored. (true or false)

true

A list of IAM ARNs from other AWS accounts that will be allowed full (read and write) access to the services in this account specified in dev_permitted_services.

[]

The ARN of the policy that is used to set the permissions boundary for the IAM role

null

A list of IAM ARNs from other AWS accounts that will be allowed full (read and write) access to this account.

[]

The ARN of the policy that is used to set the permissions boundary for the IAM role

null

A list of IAM ARNs from other AWS accounts that will be allowed read access to the logs in CloudTrail, AWS Config, and CloudWatch for this account. If cloudtrail_kms_key_arn is specified, will also be given permissions to decrypt with the KMS CMK that is used to encrypt CloudTrail logs.

[]

A list of IAM ARNs from other AWS accounts that will be allowed read-only access to this account.

[]

The ARN of the policy that is used to set the permissions boundary for the IAM role

null

A list of IAM ARNs from other AWS accounts that will be allowed read access to IAM groups and publish SSH keys. This is used for ssh-grunt.

[]

A list of IAM ARNs from other AWS accounts that will be allowed access to AWS support for this account.

[]

The ARN of the policy that is used to set the permissions boundary for the IAM role

null
auto_deploy_permissionslist(string)optional

A list of IAM permissions (e.g. ec2:) that will be added to an IAM Group for doing automated deployments. NOTE: If should_create_iam_group_auto_deploy is true, the list must have at least one element (e.g. '').

[]

The ARN of the policy that is used to set the permissions boundary for the IAM role

null

Whether or not to allow kms:DescribeKey to external AWS accounts with write access to the CloudTrail bucket. This is useful during deployment so that you don't have to pass around the KMS key ARN.

false

Specify the name of the CloudWatch Logs group to publish the CloudTrail logs to. This log group exists in the current account. Set this value to null to avoid publishing the trail logs to the logs group. The recommended configuration for CloudTrail is (a) for each child account to aggregate its logs in an S3 bucket in a single central account, such as a logs account and (b) to also store 14 days work of logs in CloudWatch in the child account itself for local debugging.

"cloudtrail-logs"

If true, logging of data events will be enabled.

false

Specify if you want your event selector to include management events for your trail.

true

Specify if you want your trail to log read-only events, write-only events, or all. Possible values are: ReadOnly, WriteOnly, All.

"All"
cloudtrail_data_logging_resourcesmap(list(…))optional

Data resources for which to log data events. This should be a map, where each key is a data resource type, and each value is a list of data resource values. Possible values for data resource types are: AWS::S3::Object, AWS::Lambda::Function and AWS::DynamoDB::Table. See the 'data_resource' block within the 'event_selector' block of the 'aws_cloudtrail' resource for context: https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/cloudtrail#data_resource.

map(list(string))
{}

Provide a list of AWS account IDs that will be allowed to send CloudTrail logs to this account. This is only required if you are aggregating CloudTrail logs in this account (e.g., this is the logs account) from other accounts.

[]

If set to true, when you run 'terraform destroy', delete all objects from the bucket so that the bucket can be destroyed without error. Warning: these objects are not recoverable so only use this if you're absolutely sure you want to permanently delete everything!

false

The ARN of the policy that is used to set the permissions boundary for the IAM role

null

All CloudTrail Logs will be encrypted with a KMS CMK (Customer Master Key) that governs access to write API calls older than 7 days and all read API calls. If you are aggregating CloudTrail logs and creating the CMK in this account (e.g., if this is the logs account), you MUST specify at least one IAM user (or other IAM ARN) that will be given administrator permissions for CMK, including the ability to change who can access this CMK and the extended log data it protects. If you are aggregating CloudTrail logs in another AWS account and the CMK already exists (e.g., if this is the stage or prod account), set this parameter to an empty list.

[]

All CloudTrail Logs will be encrypted with a KMS CMK (Customer Master Key) that governs access to write API calls older than 7 days and all read API calls. If that CMK already exists (e.g., if this is the stage or prod account and you want to use a CMK that already exists in the logs account), set this to the ARN of that CMK. Otherwise (e.g., if this is the logs account), set this to null, and a new CMK will be created.

null

If the kms_key_arn provided is an alias or alias ARN, then this must be set to true so that the module will exchange the alias for a CMK ARN. Setting this to true and using aliases requires cloudtrail_allow_kms_describe_key_to_external_aws_accounts to also be true for multi-account scenarios.

false
cloudtrail_kms_key_service_principalslist(object(…))optional

Additional service principals beyond CloudTrail that should have access to the KMS key used to encrypt the logs. This is useful for granting access to the logs for the purposes of constructing metric filters.

list(object({
# The name of the service principal (e.g.: s3.amazonaws.com).
name = string

# The list of actions that the given service principal is allowed to perform (e.g. ["kms:DescribeKey",
# "kms:GenerateDataKey"]).
actions = list(string)

# List of conditions to apply to the permissions for the service principal. Use this to apply conditions on the
# permissions for accessing the KMS key (e.g., only allow access for certain encryption contexts).
conditions = list(object({
# Name of the IAM condition operator to evaluate.
test = string

# Name of a Context Variable to apply the condition to. Context variables may either be standard AWS variables
# starting with aws: or service-specific variables prefixed with the service name.
variable = string

# Values to evaluate the condition against. If multiple values are provided, the condition matches if at least one
# of them applies. That is, AWS evaluates multiple values as though using an "OR" boolean operation.
values = list(string)
}))
}))
[]

All CloudTrail Logs will be encrypted with a KMS CMK (Customer Master Key) that governs access to write API calls older than 7 days and all read API calls. If you are aggregating CloudTrail logs and creating the CMK in this account (e.g., this is the logs account), you MUST specify at least one IAM user (or other IAM ARN) that will be given user access to this CMK, which will allow this user to read CloudTrail Logs. If you are aggregating CloudTrail logs in another AWS account and the CMK already exists, set this parameter to an empty list (e.g., if this is the stage or prod account).

[]

After this number of days, log files should be transitioned from S3 to Glacier. Enter 0 to never archive log data.

30

After this number of days, log files should be deleted from S3. Enter 0 to never delete log data.

365

After this number of days, logs stored in CloudWatch will be deleted. Possible values are: 1, 3, 5, 7, 14, 30, 60, 90, 120, 150, 180, 365, 400, 545, 731, 1827, 3653, and 0 (default). When set to 0, logs will be retained indefinitely.

0

Set to false to create an S3 bucket of name cloudtrail_s3_bucket_name in this account for storing CloudTrail logs (e.g., if this is the logs account). Set to true to assume the bucket specified in cloudtrail_s3_bucket_name already exists in another AWS account (e.g., if this is the stage or prod account and cloudtrail_s3_bucket_name is the name of a bucket in the logs account).

true

The name of the S3 Bucket where CloudTrail logs will be stored. This could be a bucket in this AWS account (e.g., if this is the logs account) or the name of a bucket in another AWS account where logs should be sent (e.g., if this is the stage or prod account and you're specifying the name of a bucket in the logs account).

null

Enable MFA delete for either 'Change the versioning state of your bucket' or 'Permanently delete an object version'. This setting only applies to the bucket used to storage Cloudtrail data. This cannot be used to toggle this setting but is available to allow managed buckets to reflect the state in AWS. For instructions on how to enable MFA Delete, check out the README from the terraform-aws-security/private-s3-bucket module.

false
cloudtrail_tagsmap(string)optional

Tags to apply to the CloudTrail resources.

{}

Set to true to send the AWS Config data to another account (e.g., a logs account) for aggregation purposes. You must set the ID of that other account via the config_central_account_id variable. This redundant variable has to exist because Terraform does not allow computed data in count and for_each parameters and config_central_account_id may be computed if its the ID of a newly-created AWS account.

false

If the S3 bucket and SNS topics used for AWS Config live in a different AWS account, set this variable to the ID of that account (e.g., if this is the stage or prod account, set this to the ID of the logs account). If the S3 bucket and SNS topics live in this account (e.g., this is the logs account), set this variable to null. Only used if config_aggregate_config_data_in_external_account is true.

null

Set to true to create AWS Config rules directly in this account. Set false to not create any Config rules in this account (i.e., if you created the rules at the organization level already). We recommend setting this to true to use account-level rules because org-level rules create a chicken-and-egg problem with creating new accounts.

true

Optional KMS key to use for encrypting S3 objects on the AWS Config delivery channel for an externally managed S3 bucket. This must belong to the same region as the destination S3 bucket. If null, AWS Config will default to encrypting the delivered data with AES-256 encryption. Only used if should_create_s3_bucket is false - otherwise, config_s3_bucket_kms_key_arn is used.

null

Same as config_delivery_channel_kms_key_arn, except the value is a name of a KMS key configured with kms_customer_master_keys. The module created KMS key for the delivery region (indexed by the name) will be used. Note that if both config_delivery_channel_kms_key_arn and config_delivery_channel_kms_key_by_name are configured, the key in config_delivery_channel_kms_key_arn will always be used.

object({
name = string
region = string
})
null

If set to true, when you run 'terraform destroy', delete all objects from the bucket so that the bucket can be destroyed without error. Warning: these objects are not recoverable so only use this if you're absolutely sure you want to permanently delete everything!

false
config_linked_accountslist(string)optional

Provide a list of AWS account IDs that will be allowed to send AWS Config data to this account. This is only required if you are aggregating config data in this account (e.g., this is the logs account) from other accounts.

[]

After this number of days, log files should be transitioned from S3 to Glacier. Enter 0 to never archive log data.

365

After this number of days, log files should be deleted from S3. Enter 0 to never delete log data.

730

Optional KMS key to use for encrypting S3 objects on the AWS Config bucket, when the S3 bucket is created within this module (config_should_create_s3_bucket is true). For encrypting S3 objects on delivery for an externally managed S3 bucket, refer to the config_delivery_channel_kms_key_arn input variable. If null, data in S3 will be encrypted using the default aws/s3 key. If provided, the key policy of the provided key must permit the IAM role used by AWS Config. See https://docs.aws.amazon.com/sns/latest/dg/sns-key-management.html. Note that the KMS key must reside in the global recorder region (as configured by aws_region).

null

Same as config_s3_bucket_kms_key_arn, except the value is a name of a KMS key configured with kms_customer_master_keys. The module created KMS key for the global recorder region (indexed by the name) will be used. Note that if both config_s3_bucket_kms_key_arn and config_s3_bucket_kms_key_by_name are configured, the key in config_s3_bucket_kms_key_arn will always be used.

null
config_s3_bucket_namestringoptional

The name of the S3 Bucket where Config items will be stored. Can be in the same account or in another account.

null

Enable MFA delete for either 'Change the versioning state of your bucket' or 'Permanently delete an object version'. This setting only applies to the bucket used to storage AWS Config data. This cannot be used to toggle this setting but is available to allow managed buckets to reflect the state in AWS. For instructions on how to enable MFA Delete, check out the README from the terraform-aws-security/private-s3-bucket module.

false

Set to true to create an S3 bucket of name config_s3_bucket_name in this account for storing AWS Config data (e.g., if this is the logs account). Set to false to assume the bucket specified in config_s3_bucket_name already exists in another AWS account (e.g., if this is the stage or prod account and config_s3_bucket_name is the name of a bucket in the logs account).

false

set to true to create an sns topic in this account for sending aws config notifications (e.g., if this is the logs account). set to false to assume the topic specified in config_sns_topic_name already exists in another aws account (e.g., if this is the stage or prod account and config_sns_topic_name is the name of an sns topic in the logs account).

false

Same as config_sns_topic_kms_key_region_map, except the value is a name of a KMS key configured with kms_customer_master_keys. The module created KMS key for each region (indexed by the name) will be used. Note that if an entry exists for a region in both config_sns_topic_kms_key_region_map and config_sns_topic_kms_key_by_name_region_map, then the key in config_sns_topic_kms_key_region_map will always be used.

null

Optional KMS key to use for each region for configuring default encryption for the SNS topic (encoded as a map from region - e.g. us-east-1 - to ARN of KMS key). If null or the region key is missing, encryption will not be configured for the SNS topic in that region.

null
config_sns_topic_namestringoptional

the name of the sns topic in where aws config notifications will be sent. can be in the same account or in another account.

"ConfigTopic"
config_tagsmap(string)optional

A map of tags to apply to the S3 Bucket. The key is the tag name and the value is the tag value.

{}

The maximum frequency with which AWS Config runs evaluations for the ´PERIODIC´ rules. See https://www.terraform.io/docs/providers/aws/r/config_organization_managed_rule.html#maximum_execution_frequency

"TwentyFour_Hours"

A custom name to use for the Cloudtrail Trail. If null, defaults to the name_prefix input variable.

null
dev_permitted_serviceslist(string)optional

A list of AWS services for which the developers from the accounts in allow_dev_access_from_other_account_arns will receive full permissions. See https://goo.gl/ZyoHlz to find the IAM Service name. For example, to grant developers access only to EC2 and Amazon Machine Learning, use the value ['ec2','machinelearning']. Do NOT add iam to the list of services, or that will grant Developers de facto admin access.

[]

If set to true (default), all new EBS volumes will have encryption enabled by default

true
ebs_kms_key_namestringoptional

The name of the KMS CMK to use by default for encrypting EBS volumes, if enable_encryption and use_existing_kms_keys are enabled. The name must match the name given the kms_customer_master_keys variable.

""

If set to true, the KMS Customer Managed Keys (CMK) with the name in ebs_kms_key_name will be set as the default for EBS encryption. When false (default), the AWS-managed aws/ebs key will be used.

false
enable_cloudtrailbooloptional

Set to true (default) to enable CloudTrail in this app account. Set to false to disable CloudTrail (note: all other CloudTrail variables will be ignored). Note that if you have enabled organization trail in the root (parent) account, you should set this to false; the organization trail will enable CloudTrail on child accounts by default.

true
enable_configbooloptional

Set to true to enable AWS Config in this app account. Set to false to disable AWS Config (note: all other AWS config variables will be ignored).

true

Checks whether the EBS volumes that are in an attached state are encrypted.

true

When true, create an Open ID Connect Provider that GitHub actions can use to assume IAM roles in the account. Refer to https://docs.github.com/en/actions/deployment/security-hardening-your-deployments/configuring-openid-connect-in-amazon-web-services for more information.

false
enable_guarddutybooloptional

Set to true (default) to enable GuardDuty in this app account. Set to false to disable GuardDuty (note: all other GuardDuty variables will be ignored). Note that if you have enabled organization level GuardDuty in the root (parent) account, you should set this to false; the organization GuardDuty will enable GuardDuty on child accounts by default.

true

A feature flag to enable or disable this module.

false

A feature flag to enable or disable this module.

true

Checks whether the account password policy for IAM users meets the specified requirements.

true

Set to true (default) to enable the IAM User Password Policies in this app account. Set to false to disable the policies. (Note: all other IAM User Password Policy variables will be ignored).

true

Checks whether the security group with 0.0.0.0/0 of any Amazon Virtual Private Cloud (Amazon VPC) allows only specific inbound TCP or UDP traffic.

true

Checks whether storage encryption is enabled for your RDS DB instances.

true

Checks whether users of your AWS account require a multi-factor authentication (MFA) device to sign in with root credentials.

true

Checks that your Amazon S3 buckets do not allow public read access.

true

Checks that your Amazon S3 buckets do not allow public write access.

true

ID or ARN of the KMS key that is used to encrypt the volume. Used for configuring the encrypted volumes config rule.

null

When set, use the statically provided hardcoded list of thumbprints rather than looking it up dynamically. This is useful if you want to trade reliability of the OpenID Connect Provider across certificate renewals with a static list that is obtained using a trustworthy mechanism, to mitigate potential damage from a domain hijacking attack on GitHub domains.

null

Name of the Cloudwatch event rules.

"guardduty-finding-events"

Specifies the frequency of notifications sent for subsequent finding occurrences. If the detector is a GuardDuty member account, the value is determined by the GuardDuty master account and cannot be modified, otherwise defaults to SIX_HOURS. For standalone and GuardDuty master accounts, it must be configured in Terraform to enable drift detection. Valid values for standalone and master accounts: FIFTEEN_MINUTES, ONE_HOUR, SIX_HOURS.

null

Specifies a name for the created SNS topics where findings are published. publish_findings_to_sns must be set to true.

"guardduty-findings"

Send GuardDuty findings to SNS topics specified by findings_sns_topic_name.

false

The name of the IAM Access Analyzer module

"baseline_app-iam_access_analyzer"

If set to ORGANIZATION, the analyzer will be scanning the current organization and any policies that refer to linked resources such as S3, IAM, Lambda and SQS policies.

"ORGANIZATION"

Allow users to change their own password.

true

Password expiration requires administrator reset.

true

Number of days before password expiration.

30

Password minimum length.

16

Number of passwords before allowing reuse.

5

Require at least one lowercase character in password.

true

Require at least one number in password.

true

Require at least one symbol in password.

true

Require at least one uppercase character in password.

true
iam_role_tagsmap(string)optional

The tags to apply to all the IAM role resources.

{}

Comma-separated list of TCP ports authorized to be open to 0.0.0.0/0. Ranges are defined by a dash; for example, '443,1020-1025'.

"443"

Comma-separated list of UDP ports authorized to be open to 0.0.0.0/0. Ranges are defined by a dash; for example, '500,1020-1025'.

null
kms_cmk_global_tagsmap(string)optional

A map of tags to apply to all KMS Keys to be created. In this map variable, the key is the tag name and the value is the tag value.

{}

You can use this variable to create account-level KMS Customer Master Keys (CMKs) for encrypting and decrypting data. This variable should be a map where the keys are the names of the CMK and the values are an object that defines the configuration for that CMK. See the comment below for the configuration options you can set for each key.

Any types represent complex values of variable type. For details, please consult `variables.tf` in the source repo.
{}
kms_grant_regionsmap(string)optional

The map of names of KMS grants to the region where the key resides in. There should be a one to one mapping between entries in this map and the entries of the kms_grants map. This is used to workaround a terraform limitation where the for_each value can not depend on resources.

{}
kms_grantsmap(object(…))optional

Create the specified KMS grants to allow entities to use the KMS key without modifying the KMS policy or IAM. This is necessary to allow AWS services (e.g. ASG) to use CMKs encrypt and decrypt resources. The input is a map of grant name to grant properties. The name must be unique per account.

map(object({
# ARN of the KMS CMK that the grant applies to. Note that the region is introspected based on the ARN.
kms_cmk_arn = string

# The principal that is given permission to perform the operations that the grant permits. This must be in ARN
# format. For example, the grantee principal for ASG is:
# arn:aws:iam::111122223333:role/aws-service-role/autoscaling.amazonaws.com/AWSServiceRoleForAutoScaling
grantee_principal = string

# A list of operations that the grant permits. The permitted values are:
# Decrypt, Encrypt, GenerateDataKey, GenerateDataKeyWithoutPlaintext, ReEncryptFrom, ReEncryptTo, CreateGrant,
# RetireGrant, DescribeKey
granted_operations = list(string)
}))
{}

The maximum allowable session duration, in seconds, for the credentials you get when assuming the IAM roles created by this module. This variable applies to all IAM roles created by this module that are intended for people to use, such as allow-read-only-access-from-other-accounts. For IAM roles that are intended for machine users, such as allow-auto-deploy-from-other-accounts, see max_session_duration_machine_users.

43200

The maximum allowable session duration, in seconds, for the credentials you get when assuming the IAM roles created by this module. This variable applies to all IAM roles created by this module that are intended for machine users, such as allow-auto-deploy-from-other-accounts. For IAM roles that are intended for human users, such as allow-read-only-access-from-other-accounts, see max_session_duration_human_users.

3600

KMS key ID or ARN used to encrypt the storage. Used for configuring the RDS storage encryption config rule.

null
service_linked_rolesset(string)optional

Create service-linked roles for this set of services. You should pass in the URLs of the services, but without the protocol (e.g., http://) in front: e.g., use elasticbeanstalk.amazonaws.com for Elastic Beanstalk or es.amazonaws.com for Amazon Elasticsearch. Service-linked roles are predefined by the service, can typically only be assumed by that service, and include all the permissions that the service requires to call other AWS services on your behalf. You can typically only create one such role per AWS account, which is why this parameter exists in the account baseline. See https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_aws-services-that-work-with-iam.html for the list of services that support service-linked roles.

[]
should_require_mfabooloptional

Should we require that all IAM Users use Multi-Factor Authentication for both AWS API calls and the AWS Web Console? (true or false)

true

When true, all IAM policies will be managed as dedicated policies rather than inline policies attached to the IAM roles. Dedicated managed policies are friendlier to automated policy checkers, which may scan a single resource for findings. As such, it is important to avoid inline policies when targeting compliance with various security standards.

true