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"Logical" provider for integrating with an Ansible Dynamic Inventory script.
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README.md

Ansible Terraform Provider

A Terraform provider serving as an interop layer for an Ansible dynamic inventory script.

Read the introductory blog post for an explanation of the design motivations behind this provider.

Installation

Installation can be accomplished in two different ways:

  1. Installing a pre-compiled release (recommended)
  2. Compiling from source

Installing a Pre-Compiled Release

Downloading and installing a pre-compiled terraform-provider-ansible release is the recommended method of installation since it requires no additional tools or libraries to be installed on your workstation.

  1. Visit the releases page and download the latest release for your target architecture.

  2. Unzip the downloaded file and copy the terraform-provider-ansible binary to a designated directory as described in Terraform's plugin installation instructions.

Compiling From Source

Note: Terraform requires Go 1.11 or later to successfully compile.

Note: Dependencies are no longer included in this repository. You may need the bazaar version control utility to download some of Terraform's Go-lang module dependencies.

If you'd like to take advantage of features not yet available in a pre-compiled release, you can compile terraform-provider-ansible from source.

In order to compile, you will need to have Go installed on your workstation. Official instructions on how to install Go can be found here.

Alternatively, you can use gimme as a quick and easy way to install Go:

$ sudo wget -O /usr/local/bin/gimme https://raw.githubusercontent.com/travis-ci/gimme/master/gimme
$ sudo chmod +x /usr/local/bin/gimme
$ gimme 1.10
# copy the output to your `.bashrc` and source `.bashrc`.

Once you have a working Go installation, you can compile terraform-provider-ansible by doing the following:

$ go get github.com/nbering/terraform-provider-ansible
$ cd $GOPATH/src/github.com/nbering/terraform-provider-ansible
$ make

You should now have a terraform-provider-ansible binary located at $GOPATH/bin/terraform-provider-ansible. Copy this binary to a designated directory as described in Terraform's plugin installation instructions

Terraform Configuration Example

resource "ansible_host" "example" {
    inventory_hostname = "example.com"
    groups = ["web"]
    vars = {
        ansible_user = "admin"
    }
}

resource "ansible_group" "web" {
  inventory_group_name = "web"
  children = ["foo", "bar", "baz"]
  vars = {
    foo = "bar"
    bar = 2
  }
}

Compatibility

Version 1.0.0 of this project is compatible with Terraform version 0.12-beta2. You will also need 2.0.0+ of the terraform-inventory script, as the internal structure of Terraform state files has changed.

If you need a version compatible with an earlier version of Terraform, use version 0.0.4.

When upgrading to Terraform 0.12.x, you may need to change your configuration files to reflect changes to the new version of the Hashicorp Configuration Lanaguage (HCL). The only known incompatibility is that vars attributes now require an equals operator (=).

0.11.x

resource "ansible_host" "example" {
    inventory_hostname = "example.com"
    vars {
        ansible_user = "admin"
    }
}

0.12.x

resource "ansible_host" "example" {
    inventory_hostname = "example.com"
    vars = {
        ansible_user = "admin"
    }
}

Alternatives and Similar Projects

jonmorehouse/terraform-provisioner-ansible

A Terraform Provisioner that runs Ansible-Local on a target machine at creation-time.

adammck/terraform-inventory

A very similar solution to this one, without the Logical provider. Depends on specific Terraform resource types, and relies heavily on cloud-providers' tag implementations.

Ansible Module: Terraform

An Ansible module that runs Terraform plans and deployments.

License

Contributions specific to this project are made available under the Mozilla Public License.

Code under the vendor/ directory is copyright of the various package owners, and made available under their own license considerations.

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