Terraform provider for various utilities (deep merging, Atmos stack configuration management), and to add additional missing functionality to Terraform
Tip
Cloud Posse uses atmos to easily orchestrate multiple environments using Terraform.
Works with Github Actions, Atlantis, or Spacelift.
Watch demo of using Atmos with Terraform
Example of running
atmos to manage infrastructure from our Quick Start tutorial.
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.
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:
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 testaccYou 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"
EOTCheck out these related projects.
For additional context, refer to some of these links.
- Terraform Plugins - Terraform is logically split into two main parts: Terraform Core and Terraform Plugins. Each plugin exposes an implementation for a specific service, such as the AWS provider or the cloud-init provider.
Tip
Use Cloud Posse's ready-to-go terraform architecture blueprints for AWS to get up and running quickly.
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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.
In general, PRs are welcome. We follow the typical "fork-and-pull" Git workflow.
- Review our Code of Conduct and Contributor Guidelines.
- Fork the repo on GitHub
- Clone the project to your own machine
- Commit changes to your own branch
- Push your work back up to your fork
- 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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