This component is responsible for configuring AWS Config.
AWS Config service enables you to track changes to your AWS resources over time. It continuously monitors and records configuration changes to your AWS resources and provides you with a detailed view of the relationships between those resources. With AWS Config, you can assess, audit, and evaluate the configurations of your AWS resources for compliance, security, and governance purposes.
Some of the key features of AWS Config include:
- Configuration history: AWS Config maintains a detailed history of changes to your AWS resources, allowing you to see when changes were made, who made them, and what the changes were.
- Configuration snapshots: AWS Config can take periodic snapshots of your AWS resources configurations, giving you a point-in-time view of their configuration.
- Compliance monitoring: AWS Config provides a range of pre-built rules and checks to monitor your resources for compliance with best practices and industry standards.
- Relationship mapping: AWS Config can map the relationships between your AWS resources, enabling you to see how changes to one resource can impact others.
- Notifications and alerts: AWS Config can send notifications and alerts when changes are made to your AWS resources that could impact their compliance or security posture.
Warning
You'll also want to be aware of some limitations with AWS Config:
- The maximum number of AWS Config rules that can be evaluated in a single account is 1000.
- This can be mitigated by removing rules that are duplicated across packs. You'll have to manually search for these duplicates.
- You can also look for rules that do not apply to any resources and remove those. You'll have to manually click through rules in the AWS Config interface to see which rules are not being evaluated.
- If you end up still needing more than 1000 rules, one recommendation is to only run packs on a schedule with a lambda that removes the pack after results are collected. If you had different schedule for each day of the week, that would mean 7000 rules over the week. The aggregators would not be able to handle this, so you would need to make sure to store them somewhere else (i.e. S3) so the findings are not lost.
- See the Audit Manager docs if you think you would like to convert conformance packs to custom Audit Manager assessments.
- The maximum number of AWS Config conformance packs that can be created in a single account is 50.
Overall, AWS Config provides you with a powerful toolset to help you monitor and manage the configurations of your AWS resources, ensuring that they remain compliant, secure, and properly configured over time.
As part of CIS AWS Foundations 1.20, this component assumes that a designated support IAM role with the following permissions has been deployed to every account in the organization:
{
"Version": "2012-10-17",
"Statement": [
{
"Sid": "AllowSupport",
"Effect": "Allow",
"Action": ["support:*"],
"Resource": "*"
},
{
"Sid": "AllowTrustedAdvisor",
"Effect": "Allow",
"Action": "trustedadvisor:Describe*",
"Resource": "*"
}
]
}
Before deploying this AWS Config component config-bucket
and cloudtrail-bucket
should be deployed first.
Stack Level: Regional or Global
This component has a default_scope
variable for configuring if it will be an organization-wide or account-level
component by default. Note that this can be overridden by the scope
variable in the conformance_packs
items.
Tip
If default_scope == account
, AWS Config is regional AWS service, so this component needs to be deployed to all
regions. If an individual conformance_packs
item has scope
set to organization
, that particular pack will be
deployed to the organization level.
Tip
If default_scope == organization
, AWS Config is global unless overridden in the conformance_packs
items. You will
need to update your org to allow the config-multiaccountsetup.amazonaws.com
service access principal for this to
work. If you are using our account
component, just add that principal to the aws_service_access_principals
variable.
At the AWS Organizational level, the Components designate an account to be the central collection account
and a single
region to be the central collection region
so that compliance information can be aggregated into a central location.
Logs are typically written to the audit
account and AWS Config deployed into to the security
account.
Here's an example snippet for how to use this component:
components:
terraform:
aws-config:
vars:
enabled: true
account_map_tenant: core
az_abbreviation_type: fixed
# In each AWS account, an IAM role should be created in the main region.
# If the main region is set to us-east-1, the value of the var.create_iam_role variable should be true.
# For all other regions, the value of var.create_iam_role should be false.
create_iam_role: false
central_resource_collector_account: core-security
global_resource_collector_region: us-east-1
config_bucket_env: ue1
config_bucket_stage: audit
config_bucket_tenant: core
conformance_packs:
- name: Operational-Best-Practices-for-CIS-AWS-v1.4-Level2
conformance_pack: https://raw.githubusercontent.com/awslabs/aws-config-rules/master/aws-config-conformance-packs/Operational-Best-Practices-for-CIS-AWS-v1.4-Level2.yaml
parameter_overrides:
AccessKeysRotatedParamMaxAccessKeyAge: '45'
- name: Operational-Best-Practices-for-HIPAA-Security.yaml
conformance_pack: https://raw.githubusercontent.com/awslabs/aws-config-rules/master/aws-config-conformance-packs/Operational-Best-Practices-for-HIPAA-Security.yaml
parameter_overrides:
...
(etc)
managed_rules:
access-keys-rotated:
identifier: ACCESS_KEYS_ROTATED
description: "Checks whether the active access keys are rotated within the number of days specified in maxAccessKeyAge. The rule is NON_COMPLIANT if the access keys have not been rotated for more than maxAccessKeyAge number of days."
input_parameters:
maxAccessKeyAge: "30"
enabled: true
tags: { }
Apply to your central region security account
atmos terraform plan aws-config-{central-region} --stack core-{central-region}-security -var=create_iam_role=true
For example when central region is us-east-1
:
atmos terraform plan aws-config-ue1 --stack core-ue1-security -var=create_iam_role=true
Apply aws-config to all stacks in all stages.
atmos terraform plan aws-config-{each region} --stack {each region}-{each stage}
Name | Version |
---|---|
terraform | >= 1.0.0 |
aws | >= 4.0 |
awsutils | >= 0.16.0 |
Name | Version |
---|---|
aws | >= 4.0 |
Name | Source | Version |
---|---|---|
account_map | cloudposse/stack-config/yaml//modules/remote-state | 1.5.0 |
aws_config | cloudposse/config/aws | 1.1.0 |
aws_config_label | cloudposse/label/null | 0.25.0 |
aws_team_roles | cloudposse/stack-config/yaml//modules/remote-state | 1.5.0 |
config_bucket | cloudposse/stack-config/yaml//modules/remote-state | 1.5.0 |
conformance_pack | cloudposse/config/aws//modules/conformance-pack | 1.1.0 |
global_collector_region | cloudposse/stack-config/yaml//modules/remote-state | 1.5.0 |
iam_roles | ../account-map/modules/iam-roles | n/a |
org_conformance_pack | ./modules/org-conformance-pack | n/a |
this | cloudposse/label/null | 0.25.0 |
utils | cloudposse/utils/aws | 1.3.0 |
Name | Type |
---|---|
aws_caller_identity.this | data source |
aws_partition.this | data source |
aws_region.this | data source |
Name | Description | Type | Default | Required |
---|---|---|---|---|
account_map_tenant | (Optional) The tenant where the account_map component required by remote-state is deployed. | string |
"" |
no |
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 |
az_abbreviation_type | AZ abbreviation type, fixed or short |
string |
"fixed" |
no |
central_resource_collector_account | The name of the account that is the centralized aggregation account. | string |
n/a | yes |
config_bucket_env | The environment of the AWS Config S3 Bucket | string |
n/a | yes |
config_bucket_stage | The stage of the AWS Config S3 Bucket | string |
n/a | yes |
config_bucket_tenant | (Optional) The tenant of the AWS Config S3 Bucket | string |
"" |
no |
conformance_packs | List of conformance packs. Each conformance pack is a map with the following keys: name, conformance_pack, parameter_overrides. For example: conformance_packs = [ { name = "Operational-Best-Practices-for-CIS-AWS-v1.4-Level1" conformance_pack = "https://raw.githubusercontent.com/awslabs/aws-config-rules/master/aws-config-conformance-packs/Operational-Best-Practices-for-CIS-AWS-v1.4-Level1.yaml" parameter_overrides = { "AccessKeysRotatedParamMaxAccessKeyAge" = "45" } }, { name = "Operational-Best-Practices-for-CIS-AWS-v1.4-Level2" conformance_pack = "https://raw.githubusercontent.com/awslabs/aws-config-rules/master/aws-config-conformance-packs/Operational-Best-Practices-for-CIS-AWS-v1.4-Level2.yaml" parameter_overrides = { "IamPasswordPolicyParamMaxPasswordAge" = "45" } } ] Complete list of AWS Conformance Packs managed by AWSLabs can be found here: https://github.com/awslabs/aws-config-rules/tree/master/aws-config-conformance-packs |
list(object({ |
[] |
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 |
create_iam_role | Flag to indicate whether an IAM Role should be created to grant the proper permissions for AWS Config | bool |
false |
no |
default_scope | The default scope of the conformance pack. Valid values are account and organization . |
string |
"account" |
no |
delegated_accounts | The account IDs of other accounts that will send their AWS Configuration or Security Hub data to this account | set(string) |
null |
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 |
global_environment | Global environment name | string |
"gbl" |
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 variable to the ARN of the existing role 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 |
iam_roles_environment_name | The name of the environment where the IAM roles are provisioned | string |
"gbl" |
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 |
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 Example: managed_rules = { |
map(object({ |
{} |
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 |
privileged | True if the default provider already has access to the backend | bool |
false |
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 |
region | AWS Region | string |
n/a | yes |
root_account_stage | The stage name for the Organization root (master) account | string |
"root" |
no |
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 |
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 |
---|---|
aws_config_configuration_recorder_id | The ID of the AWS Config Recorder |
aws_config_iam_role | The ARN of the IAM Role used for AWS Config |
storage_bucket_arn | Storage Config bucket ARN |
storage_bucket_id | Storage Config bucket ID |
- AWS Config Documentation
- Cloud Posse's upstream component
- Conformance Packs documentation
- AWS Managed Sample Conformance Packs
Tip
Cloud Posse uses atmos
to easily orchestrate multiple environments using Terraform.
Works with Github Actions, Atlantis, or Spacelift.
Watch demo of using Atmos with Terraform
Example of running
atmos
to manage infrastructure from our Quick Start tutorial.
Check out these related projects.
- Cloud Posse Terraform Modules - Our collection of reusable Terraform modules used by our reference architectures.
- Atmos - Atmos is like docker-compose but for your infrastructure
Tip
Use Cloud Posse's ready-to-go terraform architecture blueprints for AWS to get up and running quickly.
β
We build it together with your team.
β
Your team owns everything.
β
100% Open Source and backed by fanatical support.
π Learn More
Cloud Posse is the leading DevOps Accelerator for funded startups and enterprises.
Your team can operate like a pro today.
Ensure that your team succeeds by using Cloud Posse's proven process and turnkey blueprints. Plus, we stick around until you succeed.
- Reference Architecture. You'll get everything you need from the ground up built using 100% infrastructure as code.
- Deployment Strategy. Adopt a proven deployment strategy with GitHub Actions, enabling automated, repeatable, and reliable software releases.
- Site Reliability Engineering. Gain total visibility into your applications and services with Datadog, ensuring high availability and performance.
- Security Baseline. Establish a secure environment from the start, with built-in governance, accountability, and comprehensive audit logs, safeguarding your operations.
- GitOps. Empower your team to manage infrastructure changes confidently and efficiently through Pull Requests, leveraging the full power of GitHub Actions.
- Training. Equip your team with the knowledge and skills to confidently manage the infrastructure, ensuring long-term success and self-sufficiency.
- Support. Benefit from a seamless communication over Slack with our experts, ensuring you have the support you need, whenever you need it.
- Troubleshooting. Access expert assistance to quickly resolve any operational challenges, minimizing downtime and maintaining business continuity.
- Code Reviews. Enhance your teamβs code quality with our expert feedback, fostering continuous improvement and collaboration.
- Bug Fixes. Rely on our team to troubleshoot and resolve any issues, ensuring your systems run smoothly.
- Migration Assistance. Accelerate your migration process with our dedicated support, minimizing disruption and speeding up time-to-value.
- Customer Workshops. Engage with our team in weekly workshops, gaining insights and strategies to continuously improve and innovate.
This project is under active development, and we encourage contributions from our community.
Many thanks to our outstanding contributors:
For π bug reports & feature requests, please use the issue tracker.
In general, PRs are welcome. We follow the typical "fork-and-pull" Git workflow.
- Review our Code of Conduct and Contributor Guidelines.
- Fork the repo on GitHub
- Clone the project to your own machine
- Commit changes to your own branch
- Push your work back up to your fork
- Submit a Pull Request so that we can review your changes
NOTE: Be sure to merge the latest changes from "upstream" before making a pull request!
Join our Open Source Community on Slack. It's FREE for everyone! Our "SweetOps" community is where you get to talk with others who share a similar vision for how to rollout and manage infrastructure. This is the best place to talk shop, ask questions, solicit feedback, and work together as a community to build totally sweet infrastructure.
Sign up for our newsletter and join 3,000+ DevOps engineers, CTOs, and founders who get insider access to the latest DevOps trends, so you can always stay in the know. Dropped straight into your Inbox every week β and usually a 5-minute read.
Join us every Wednesday via Zoom for your weekly dose of insider DevOps trends, AWS news and Terraform insights, all sourced from our SweetOps community, plus a live Q&A that you canβt find anywhere else. It's FREE for everyone!
Preamble to the Apache License, Version 2.0
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,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
All other trademarks referenced herein are the property of their respective owners.
Copyright Β© 2017-2024 Cloud Posse, LLC