Terraform Module to provision a basic IAM system user suitable for CI/CD Systems (e.g. TravisCI, CircleCI) or systems which are external to AWS that cannot leverage AWS IAM Instance Profiles or AWS OIDC.
We do not recommend creating IAM users this way for any other purpose.
By default, IAM users, groups, and roles have no access to AWS resources. IAM policies are the means by which privileges are granted to users, groups, or roles. It is recommended that IAM policies be applied directly to groups and roles but not users. This module intentionally attaches an IAM policy directly to the user and does not use groups
The IAM user name is constructed using terraform-null-label
and some input is required. The simplest input is name. By default the name will be converted to lower case
and all non-alphanumeric characters except for hyphen will be removed. See the documentation for terraform-null-label
to learn how to override these defaults if desired.
If an AWS Access Key is created, it is stored either in SSM Parameter Store or is provided as a module output, but not both. Using SSM Parameter Store is recommended because module outputs are stored in plaintext in the Terraform state file.
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 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 |
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 "circleci" {
source = "cloudposse/iam-system-user/aws"
# Cloud Posse recommends pinning every module to a specific version
# version = "x.x.x"
namespace = "eg"
stage = "circleci"
name = "assets"
}module "fluentd_user" {
source = "cloudposse/iam-system-user/aws"
# Cloud Posse recommends pinning every module to a specific version
# version = "x.x.x"
namespace = "eg"
stage = "dev"
name = "fluentd"
policy_arns_map = {
logs = "arn:aws:iam::aws:policy/CloudWatchLogsFullAccess"
}
inline_policies_map = {
s3 = data.aws_iam_policy_document.s3_policy.json
}
}
data "aws_iam_policy_document" "s3_policy" {
statement {
actions = [
"s3:PutObject",
"s3:GetObjectAcl",
"s3:GetObject",
"s3:ListBucket",
"s3:PutObjectAcl"
]
resources = [
"arn:aws:s3:::bucket_name/*",
"arn:aws:s3:::bucket_name/"
]
}
}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 | >= 0.13.0 |
| aws | >= 2.0 |
| Name | Version |
|---|---|
| aws | >= 2.0 |
| Name | Source | Version |
|---|---|---|
| store_write | cloudposse/ssm-parameter-store/aws | 0.10.0 |
| this | cloudposse/label/null | 0.25.0 |
| Name | Type |
|---|---|
| aws_iam_access_key.default | resource |
| aws_iam_user.default | resource |
| aws_iam_user_policy.inline_policies | resource |
| aws_iam_user_policy_attachment.policies | resource |
| 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 delimiterand 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 |
| create_iam_access_key | Whether or not to create IAM access keys | bool |
true |
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 |
| force_destroy | Destroy the user even if it has non-Terraform-managed IAM access keys, login profile or MFA devices | bool |
false |
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 |
| inline_policies | Inline policies to attach to our created user | list(string) |
[] |
no |
| inline_policies_map | Inline policies to attach (descriptive key => policy) | map(string) |
{} |
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 |
| path | Path in which to create the user | string |
"/" |
no |
| permissions_boundary | Permissions Boundary ARN to attach to our created user | string |
null |
no |
| policy_arns | Policy ARNs to attach to our created user | list(string) |
[] |
no |
| policy_arns_map | Policy ARNs to attach (descriptive key => arn) | map(string) |
{} |
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 |
| ssm_base_path | The base path for SSM parameters where secrets are stored | string |
"/system_user/" |
no |
| ssm_enabled | Set true to store secrets in SSM Parameter Store, <br>false to store secrets in Terraform state as outputs.Since Terraform state would contain the secrets in plaintext, use of SSM Parameter Store is recommended. |
bool |
true |
no |
| ssm_ses_smtp_password_enabled | Whether or not to create an SES SMTP password | bool |
false |
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 |
|---|---|
| access_key_id | The access key ID |
| access_key_id_ssm_path | The SSM Path under which the IAM User's access key ID is stored |
| secret_access_key | When ssm_enabled is false, this is the secret access key for the IAM user.This will be written to the state file in plain-text. When ssm_enabled is true, this output will be empty to keep the value secure. |
| secret_access_key_ssm_path | The SSM Path under which the IAM User's secret access key is stored |
| ses_smtp_password_v4 | When ssm_enabled is false, this is the secret access key converted into an SES SMTP passwordby applying AWS's Sigv4 conversion algorithm. It will be written to the Terraform state file in plaintext. When ssm_enabled is true, this output will be empty to keep the value secure. |
| ses_smtp_password_v4_ssm_path | The SSM Path under which the IAM User's SES SMTP password is stored |
| ssm_enabled | true when secrets are stored in SSM Parameter store,false when secrets are stored in Terraform state as outputs. |
| user_arn | The ARN assigned by AWS for this user |
| user_name | Normalized IAM user name |
| user_unique_id | The unique ID assigned by AWS |
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Check out these related projects.
- terraform-aws-iam-s3-user - Terraform module to provision a basic IAM user with permissions to access S3 resources, e.g. to give the user read/write/delete access to the objects in an S3 bucket
- terraform-aws-iam-assumed-roles - Terraform Module for Assumed Roles on AWS with IAM Groups Requiring MFA
- terraform-aws-ssm-iam-role - Terraform module to provision an IAM role with configurable permissions to access SSM Parameter Store
- 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-lb-s3-bucket - Terraform module to provision an S3 bucket with built in IAM policy to allow AWS Load Balancers to ship access logs
- terraform-null-label - Terraform Module to implement a consistent naming convention
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