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Terraform module to provision two IAM roles and two IAM groups for assuming the roles provided MFA is present, and add IAM users to the groups.

  • Role and group with Administrator (full) access to AWS resources
  • Role and group with Readonly access to AWS resources

To give a user administrator's access, add the user to the admin group.

To give a user readonly access, add the user to the readonly group.

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module "assumed_roles" {
  source              = "git::"
  namespace           = "cp"
  stage               = "prod"
  admin_name          = "admin"
  readonly_name       = "readonly"
  admin_user_names    = ["User1","User2"] # Add these IAM users to the admin group
  readonly_user_names = ["User3","User4"] # Add these IAM users to the readonly group

Makefile Targets

Available targets:

  help                                Help screen
  help/all                            Display help for all targets
  help/short                          This help short screen
  lint                                Lint terraform code


Name Description Type Default Required
admin_name Name for the admin group and role (e.g. admin) string admin no
admin_user_names Optional list of IAM user names to add to the admin group list <list> no
attributes Additional attributes (e.g. policy or role) list <list> no
delimiter Delimiter to be used between namespace, stage, name, and attributes string - no
enabled Set to false to prevent the module from creating any resources string true no
namespace Namespace (e.g. cp or cloudposse) string - yes
readonly_name Name for the readonly group and role (e.g. readonly) string readonly no
readonly_user_names Optional list of IAM user names to add to the readonly group list <list> no
stage Stage (e.g. prod, dev, staging) string - yes
switchrole_url URL to the IAM console to switch to a role string no
tags Additional tags (e.g. map(BusinessUnit,XYZ) map <map> no


Name Description
group_admin_arn Admin group ARN
group_admin_id Admin group ID
group_admin_name Admin group name
group_readonly_arn Readonly group ARN
group_readonly_id Readonly group ID
group_readonly_name Readonly group name
role_admin_arn Admin role ARN
role_admin_name Admin role name
role_readonly_arn Readonly role ARN
role_readonly_name Readonly role name
switchrole_admin_url URL to the IAM console to switch to the admin role
switchrole_readonly_url URL to the IAM console to switch to the readonly role

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Related Projects

Check out these related projects.

  • 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-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-iam-role - Terraform module to provision an IAM role with configurable permissions to access SSM Parameter Store
  • 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-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-aws-organization-access-group - Terraform module to create an IAM Group and Policy to grant permissions to delegated IAM users in the Organization's master account to access a member account


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Copyright © 2017-2019 Cloud Posse, LLC



See LICENSE for full details.

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

Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
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Erik Osterman
Erik Osterman
Andriy Knysh
Andriy Knysh

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