Terraform module to provision a KMS key with alias.
Can be used with chamber for managing secrets by storing them in Amazon EC2 Systems Manager Parameter Store.
- https://aws.amazon.com/systems-manager/features
- https://aws.amazon.com/blogs/mt/the-right-way-to-store-secrets-using-parameter-store
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!
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.
module "kms_key" {
source = "cloudposse/kms-key/aws"
# Cloud Posse recommends pinning every module to a specific version
# version = "x.x.x"
namespace = "eg"
stage = "test"
name = "chamber"
description = "KMS key for chamber"
deletion_window_in_days = 10
enable_key_rotation = true
alias = "alias/parameter_store_key"
}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 | >= 0.12.26 |
| aws | >= 3.0 |
| local | >= 1.3 |
| null | >= 2.0 |
| Name | Version |
|---|---|
| aws | >= 3.0 |
| Name | Description | Type | Default | Required |
|---|---|---|---|---|
| additional_tag_map | Additional tags for appending to tags_as_list_of_maps. Not added to tags. |
map(string) |
{} |
no |
| alias | The display name of the alias. The name must start with the word alias followed by a forward slash |
string |
"" |
no |
| attributes | Additional attributes (e.g. 1) |
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. |
object({ |
{ |
no |
| deletion_window_in_days | Duration in days after which the key is deleted after destruction of the resource | number |
10 |
no |
| delimiter | Delimiter to be used between namespace, environment, stage, name and attributes.Defaults to - (hyphen). Set to "" to use no delimiter at all. |
string |
null |
no |
| description | The description of the key as viewed in AWS console | string |
"Parameter Store KMS master key" |
no |
| enable_key_rotation | Specifies whether key rotation is enabled | bool |
true |
no |
| enabled | Set to false to prevent the module from creating any resources | bool |
null |
no |
| environment | Environment, e.g. 'uw2', 'us-west-2', OR 'prod', 'staging', 'dev', 'UAT' | string |
null |
no |
| id_length_limit | Limit id to this many characters.Set to 0 for unlimited length.Set to null for default, which is 0.Does not affect id_full. |
number |
null |
no |
| label_order | The naming order of the id output and Name tag. Defaults to ["namespace", "environment", "stage", "name", "attributes"]. You can omit any of the 5 elements, but at least one must be present. |
list(string) |
null |
no |
| name | Solution name, e.g. 'app' or 'jenkins' | string |
null |
no |
| namespace | Namespace, which could be your organization name or abbreviation, e.g. 'eg' or 'cp' | string |
null |
no |
| policy | A valid KMS policy JSON document. Note that if the policy document is not specific enough (but still valid), Terraform may view the policy as constantly changing in a terraform plan. In this case, please make sure you use the verbose/specific version of the policy. | string |
"" |
no |
| regex_replace_chars | Regex to replace chars with empty string in namespace, environment, stage and name.If not set, "/[^a-zA-Z0-9-]/" is used to remove all characters other than hyphens, letters and digits. |
string |
null |
no |
| stage | Stage, e.g. 'prod', 'staging', 'dev', OR 'source', 'build', 'test', 'deploy', 'release' | string |
null |
no |
| tags | Additional tags (e.g. map('BusinessUnit','XYZ') |
map(string) |
{} |
no |
| Name | Description |
|---|---|
| alias_arn | Alias ARN |
| alias_name | Alias name |
| key_arn | Key ARN |
| key_id | Key ID |
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Check out these related projects.
- terraform-aws-iam-chamber-user - Terraform module to provision a basic IAM chamber user with access to SSM parameters and KMS key to decrypt secrets, suitable for CI/CD systems (e.g. TravisCI, CircleCI, CodeFresh) or systems which are external to AWS that cannot leverage AWS IAM Instance Profiles
- terraform-aws-ssm-parameter-store - Terraform module to populate AWS Systems Manager (SSM) Parameter Store with values from Terraform. Works great with Chamber.
- terraform-aws-ssm-iam-role - Terraform module to provision an IAM role with configurable permissions to access SSM Parameter Store
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