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Terraform module to aggregate multiple IAM policy documents into single policy document.

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README Header

Cloud Posse

terraform-aws-iam-policy-document-aggregator

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Terraform module to aggregate multiple IAM policy documents into single policy document.


This project is part of our comprehensive "SweetOps" approach towards DevOps.

Terraform Open Source Modules

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!

Usage

IMPORTANT: The master branch is used in source just as an example. In your code, do not pin to master because there may be breaking changes between releases. Instead pin to the release tag (e.g. ?ref=tags/x.y.z) of one of our latest releases.

This example creates a single IAM policy document from multiple IAM policy documents.

  data "aws_iam_policy_document" "resource_full_access" {
    statement {
      sid       = "FullAccess"
      effect    = "Allow"
      resources = ["arn:aws:s3:::bucketname/path/*"]

      actions = [
        "s3:PutObject",
        "s3:PutObjectAcl",
        "s3:GetObject",
        "s3:DeleteObject",
        "s3:ListBucket",
        "s3:ListBucketMultipartUploads",
        "s3:GetBucketLocation",
        "s3:AbortMultipartUpload",
        ]
    }
  }

  data "aws_iam_policy_document" "base" {
    statement {
      sid = "BaseAccess"

      actions = [
        "s3:ListBucket",
        "s3:ListBucketVersions",
      ]

      resources = ["*"]
      effect    = "Allow"
    }
  }


  module "aggregated_policy" {
    source = "git::https://github.com/cloudposse/terraform-aws-iam-policy-document-aggregator.git?ref=master"
    source_documents = [
      "${data.aws_iam_policy_document.base.json}",
      "${data.aws_iam_policy_document.resource_full_access.json}"
    ]
  }

  resource "aws_iam_role" "default" {
    name                 = "example-role"
    description          = "IAM Role with permissions to perform actions on S3 resources"
  }

  resource "aws_iam_role_policy" "default" {
    name        = "example-policy"
    description = "Allow S3 actions"
    role = "${aws_iam_role.default.id}"
    policy      = "${module.aggregated_policy.result_document}"
  }

Additional Examples

The example directory contains the example.

Inputs

Name Description Type Default Required
source_documents List of JSON IAM policy documents.

Limits:
* List size max 10
* Statement can be overriden by the statement with the same sid from the latest policy.
list <list> no

Outputs

Name Description
result_document Aggregeted IAM policy

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Contributing

Bug Reports & Feature Requests

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Developing

If you are interested in being a contributor and want to get involved in developing this project or help out with our other projects, we would love to hear from you! Shoot us an email.

In general, PRs are welcome. We follow the typical "fork-and-pull" Git workflow.

  1. Fork the repo on GitHub
  2. Clone the project to your own machine
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  4. Push your work back up to your fork
  5. 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!

Copyright

Copyright © 2017-2019 Cloud Posse, LLC

License

License

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

  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.

Trademarks

All other trademarks referenced herein are the property of their respective owners.

About

This project is maintained and funded by Cloud Posse, LLC. Like it? Please let us know by leaving a testimonial!

Cloud Posse

We're a DevOps Professional Services company based in Los Angeles, CA. We ❤️ Open Source Software.

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Contributors

Igor Rodionov
Igor Rodionov
Maxim Mironenko
Maxim Mironenko

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Terraform module to aggregate multiple IAM policy documents into single policy document.

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