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Terraform provider for various utilities (deep merging, Atmos stack configuration management), and to add additional missing functionality to Terraform

[!TIP]

πŸ‘½ Use Atmos with Terraform

Cloud Posse uses atmos to easily orchestrate multiple environments using Terraform. <br/> Works with Github Actions, Atlantis, or Spacelift.

<details> <summary><strong>Watch demo of using Atmos with Terraform</strong></summary> <img src="https://github.com/cloudposse/atmos/blob/master/docs/demo.gif?raw=true"/><br/> <i>Example of running <a href="https://atmos.tools"><code>atmos</code></a> to manage infrastructure from our <a href="https://atmos.tools/quick-start/">Quick Start</a> tutorial.</i> </detalis>

Usage

Here is how to use this provider in your own Terraform code:

terraform {
  required_providers {
    utils = {
      source = "cloudposse/utils"
      version = ">= 1.17.0"
    }
  }
}

See the Docs for additional information.

[!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.

Examples

Here is an example of using this provider:

terraform {
  required_providers {
    utils = {
      source = "cloudposse/utils"
    }
  }
}

locals {
  yaml_data_1 = file("${path.module}/data1.yaml")
  yaml_data_2 = file("${path.module}/data2.yaml")
}

data "utils_deep_merge_yaml" "example" {
  input = [
    local.yaml_data_1,
    local.yaml_data_2
  ]
}

output "deep_merge_output" {
  value = data.utils_deep_merge_yaml.example.output
}

Here are some additional examples:

Developing the Provider

If you wish to work on the provider, you'll first need Go installed on your machine (see Requirements above).

To compile the provider, run go install. This will build the provider and put the provider binary in the $GOPATH/bin directory.

To generate or update documentation, run go generate.

In order to run the full suite of Acceptance tests, run make testacc.

Note: Acceptance tests create real resources, and often cost money to run.

$ make testacc

Testing Locally

You can test the provider locally by using the provider_installation functionality.

For testing this provider, you can edit your ~/.terraformrc file with the following:

provider_installation {
  dev_overrides  {
    "cloudposse/utils" = "/path/to/your/code/github.com/cloudposse/terraform-provider-utils/"
  }

  # For all other providers, install them directly from their origin provider
  # registries as normal. If you omit this, Terraform will _only_ use
  # the dev_overrides block, and so no other providers will be available.
  direct {}
}

With that in place, you can build the provider (see above) and add a provider block:

required_providers {
    utils = {
      source = "cloudposse/utils"
    }
  }

Then run terraform init, terraform plan and terraform apply as normal.

$ terraform init
Initializing the backend...

Initializing provider plugins...
- Finding latest version of cloudposse/utils...

Warning: Provider development overrides are in effect

The following provider development overrides are set in the CLI configuration:
 - cloudposse/utils in /path/to/your/code/github.com/cloudposse/terraform-provider-utils

The behavior may therefore not match any released version of the provider and
applying changes may cause the state to become incompatible with published
releases.
terraform apply

Warning: Provider development overrides are in effect

The following provider development overrides are set in the CLI configuration:
 - cloudposse/utils in /Users/matt/code/src/github.com/cloudposse/terraform-provider-utils

The behavior may therefore not match any released version of the provider and
applying changes may cause the state to become incompatible with published
releases.


An execution plan has been generated and is shown below.
Resource actions are indicated with the following symbols:

Terraform will perform the following actions:

Plan: 0 to add, 0 to change, 0 to destroy.

Changes to Outputs:
  + deep_merge_output = <<-EOT
        Statement:
        - Action:
          - s3:*
          Effect: Allow
          Resource:
          - '*'
          Sid: FullAccess
        - Action:
          - s3:*
          Complex:
            ExtraComplex:
              ExtraExtraComplex:
                Foo: bazzz
                SomeArray:
                - one
                - two
                - three
          Effect: Deny
          Resource:
          - arn:aws:s3:::customer
          - arn:aws:s3:::customer/*
          - foo
          Sid: DenyCustomerBucket
        Version: "2012-10-17"
    EOT

Related Projects

Check out these related projects.

References

For additional context, refer to some of these links.

[!TIP]

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Use Cloud Posse's ready-to-go terraform architecture blueprints for AWS to get up and running quickly.

βœ… We build it together with your team.<br/> βœ… Your team owns everything.<br/> βœ… 100% Open Source and backed by fanatical support.<br/>

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</details>

✨ Contributing

This project is under active development, and we encourage contributions from our community.

Many thanks to our outstanding contributors:

<a href="https://github.com/cloudposse/terraform-provider-utils/graphs/contributors"> <img src="https://contrib.rocks/image?repo=cloudposse/terraform-provider-utils&max=24" /> </a>

For πŸ› bug reports & feature requests, please use the issue tracker.

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

  1. Review our Code of Conduct and Contributor Guidelines.
  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!

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License

<a href="https://opensource.org/licenses/Apache-2.0"><img src="https://img.shields.io/badge/License-Apache%202.0-blue.svg?style=for-the-badge" alt="License"></a>

<details> <summary>Preamble to the Apache License, Version 2.0</summary> <br/> <br/>

Complete license is available in the LICENSE file.

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.
</details>

Trademarks

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

Copyrights

Copyright Β© 2021-2024 Cloud Posse, LLC

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