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https://github.com/cloudposse/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
https://github.com/cloudposse/terraform-aws-iam-s3-user
aws-credentials cicd circleci codefresh iam s3 terraform terraform-modules travis-ci
Last synced: 28 days ago
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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
- Host: GitHub
- URL: https://github.com/cloudposse/terraform-aws-iam-s3-user
- Owner: cloudposse
- License: apache-2.0
- Created: 2018-04-26T23:55:52.000Z (over 6 years ago)
- Default Branch: main
- Last Pushed: 2024-09-19T03:08:58.000Z (about 2 months ago)
- Last Synced: 2024-09-27T19:20:58.815Z (about 1 month ago)
- Topics: aws-credentials, cicd, circleci, codefresh, iam, s3, terraform, terraform-modules, travis-ci
- Language: HCL
- Homepage: https://cloudposse.com/accelerate
- Size: 2.29 MB
- Stars: 55
- Watchers: 20
- Forks: 43
- Open Issues: 3
-
Metadata Files:
- Readme: README.md
- License: LICENSE
- Codeowners: .github/CODEOWNERS
Awesome Lists containing this project
README
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.
Suitable for CI/CD systems (_e.g._ TravisCI, CircleCI) or systems which are *external* to AWS
that cannot leverage [AWS IAM Instance Profiles](http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use_switch-role-ec2_instance-profiles.html)
or [AWS OIDC](https://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_providers_create_oidc.html).
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](https://github.com/cloudposse/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.
> [!TIP]
> #### 👽 Use Atmos with Terraform
> Cloud Posse uses [`atmos`](https://atmos.tools) to easily orchestrate multiple environments using Terraform.
> Works with [Github Actions](https://atmos.tools/integrations/github-actions/), [Atlantis](https://atmos.tools/integrations/atlantis), or [Spacelift](https://atmos.tools/integrations/spacelift).
>
>
> Watch demo of using Atmos with Terraform
> 
> Example of running atmos to manage infrastructure from our Quick Start tutorial.
>
## Usage
This example will create an IAM user and allow read access to all objects in the S3 bucket `examplebucket`
```hcl
module "s3_user" {
source = "cloudposse/iam-s3-user/aws"
# Cloud Posse recommends pinning every module to a specific version
# version = "x.x.x"
namespace = "eg"
stage = "test"
name = "app"
s3_actions = ["s3:GetObject"]
s3_resources = "arn:aws:s3:::examplebucket/*"
}
```
> [!IMPORTANT]
> In Cloud Posse's examples, we avoid pinning modules to specific versions to prevent discrepancies between the documentation
> and the latest released versions. However, for your own projects, we strongly advise pinning each module to the exact version
> you're using. This practice ensures the stability of your infrastructure. Additionally, we recommend implementing a systematic
> approach for updating versions to avoid unexpected changes.
## Makefile Targets
```text
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](#requirement\_terraform) | >= 0.13.0 |
| [aws](#requirement\_aws) | >= 2.0 |
## Providers
| Name | Version |
|------|---------|
| [aws](#provider\_aws) | >= 2.0 |
## Modules
| Name | Source | Version |
|------|--------|---------|
| [s3\_user](#module\_s3\_user) | cloudposse/iam-system-user/aws | 1.2.1 |
| [this](#module\_this) | cloudposse/label/null | 0.25.0 |
## Resources
| Name | Type |
|------|------|
| [aws_iam_user_policy.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/iam_user_policy) | resource |
| [aws_iam_policy_document.default](https://registry.terraform.io/providers/hashicorp/aws/latest/docs/data-sources/iam_policy_document) | data source |
## Inputs
| Name | Description | Type | Default | Required |
|------|-------------|------|---------|:--------:|
| [additional\_tag\_map](#input\_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](#input\_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 |
| [context](#input\_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\_access\_key](#input\_create\_iam\_access\_key) | Set `true` to create an IAM Access Key for the user.
To rotate the key, set `false` to delete it and then back to `true` to create a new key.
Best practice is to never create a key and instead authenticate with OIDC or some other mechanism
that does not require long-lived bearer tokens. | `bool` | `true` | no |
| [delimiter](#input\_delimiter) | Delimiter to be used between ID elements.
Defaults to `-` (hyphen). Set to `""` to use no delimiter at all. | `string` | `null` | no |
| [descriptor\_formats](#input\_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
`{
format = string
labels = list(string)
}`
(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 |
| [enabled](#input\_enabled) | Set to false to prevent the module from creating any resources | `bool` | `null` | no |
| [environment](#input\_environment) | ID element. Usually used for region e.g. 'uw2', 'us-west-2', OR role 'prod', 'staging', 'dev', 'UAT' | `string` | `null` | no |
| [force\_destroy](#input\_force\_destroy) | Destroy even if it has non-Terraform-managed IAM access keys, login profiles or MFA devices | `bool` | `false` | no |
| [id\_length\_limit](#input\_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](#input\_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](#input\_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](#input\_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](#input\_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 |
| [name](#input\_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](#input\_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](#input\_path) | Path in which to create the user | `string` | `"/"` | no |
| [permissions\_boundary](#input\_permissions\_boundary) | Permissions Boundary ARN to attach to our created user | `string` | `null` | no |
| [regex\_replace\_chars](#input\_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\_actions](#input\_s3\_actions) | Actions to allow in the policy | `list(string)` | [
"s3:GetObject"
]
| no |
| [s3\_resources](#input\_s3\_resources) | S3 resources to apply the actions specified in the policy | `list(string)` | n/a | yes |
| [ssm\_base\_path](#input\_ssm\_base\_path) | The base path for SSM parameters where secrets are stored | `string` | `"/s3_user/"` | no |
| [ssm\_enabled](#input\_ssm\_enabled) | Set `true` to store secrets in SSM Parameter Store,
`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` | `false` | no |
| [stage](#input\_stage) | ID element. Usually used to indicate role, e.g. 'prod', 'staging', 'source', 'build', 'test', 'deploy', 'release' | `string` | `null` | no |
| [tags](#input\_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](#input\_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 |
|------|-------------|
| [access\_key\_id](#output\_access\_key\_id) | Access Key ID |
| [access\_key\_id\_ssm\_path](#output\_access\_key\_id\_ssm\_path) | The SSM Path under which the S3 User's access key ID is stored |
| [secret\_access\_key](#output\_secret\_access\_key) | Secret Access Key. This will be written to the state file in plain-text |
| [secret\_access\_key\_ssm\_path](#output\_secret\_access\_key\_ssm\_path) | The SSM Path under which the S3 User's secret access key is stored |
| [user\_arn](#output\_user\_arn) | The ARN assigned by AWS for the user |
| [user\_name](#output\_user\_name) | Normalized IAM user name |
| [user\_unique\_id](#output\_user\_unique\_id) | The user unique ID assigned by AWS |
## Related Projects
Check out these related projects.
- [terraform-aws-iam-system-user](https://github.com/cloudposse/terraform-aws-iam-system-user) - Terraform Module to Provision a Basic IAM System User Suitable for CI/CD Systems (E.g. TravisCI, CircleCI)
- [terraform-aws-iam-assumed-roles](https://github.com/cloudposse/terraform-aws-iam-assumed-roles) - Terraform Module for Assumed Roles on AWS with IAM Groups Requiring MFA
- [terraform-aws-ssm-iam-role](https://github.com/cloudposse/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](https://github.com/cloudposse/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](https://github.com/cloudposse/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
> [!TIP]
> #### Use Terraform Reference Architectures for AWS
>
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## ✨ Contributing
This project is under active development, and we encourage contributions from our community.
Many thanks to our outstanding contributors:
For 🐛 bug reports & feature requests, please use the [issue tracker](https://github.com/cloudposse/terraform-aws-iam-s3-user/issues).
In general, PRs are welcome. We follow the typical "fork-and-pull" Git workflow.
1. Review our [Code of Conduct](https://github.com/cloudposse/terraform-aws-iam-s3-user/?tab=coc-ov-file#code-of-conduct) and [Contributor Guidelines](https://github.com/cloudposse/.github/blob/main/CONTRIBUTING.md).
2. **Fork** the repo on GitHub
3. **Clone** the project to your own machine
4. **Commit** changes to your own branch
5. **Push** your work back up to your fork
6. 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!
### 🌎 Slack Community
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## License
Preamble to the Apache License, Version 2.0
Complete license is available in the [`LICENSE`](LICENSE) file.
```text
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.
```
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All other trademarks referenced herein are the property of their respective owners.
---
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