terraform-ansible-inventory

Simple module to render Ansible inventory file. It works well in situations when you provision your servers with Terraform, and later you want to do something to them with Ansible.

Usage

Include the module:

module "ansible-inventory" {
  source = "github.com/humanbits/terraform-ansible-inventory"
}

The module allows you to declare the following blocks: hosts, groups, group_vars, group_children:

module "ansible-inventory" {
  source = "github.com/humanbits/terraform-ansible-inventory"

  hosts = {
    "host1" = {
      ansible_host : "10.0.0.1"
      other_host1_var : "other_host1_var_value"
    }
    "host2" = {
      ansible_host : "10.0.0.2"
      other_host2_var : "other_host2_var_value"
    }
    "host3" = {
      ansible_host : "10.0.0.3"
      other_host1_var : "other_host1_var_value"
    }
    "host4" = {
      ansible_host : "10.0.0.4"
      other_host2_var : "other_host2_var_value"
    }
  }

  groups = {
    group1 = ["host1", "host2"]
    group2 = ["host3", "host4"]
  }

  group_vars = {
    group1 = {
      group1_var1 : "group1_var1_value"
      group1_var2 : "group1_var2_value"
    }
  }

  group_children = {
    other_group = ["group1", "group2"]
  }
}

And outputs the inventory string:

output "ansible-inventory" {
  value = module.ansible-inventory.result
}

The above example will produce the following inventory output:

host1 ansible_host = 10.0.0.1 other_host1_var=other_host1_var_value
host2 ansible_host = 10.0.0.2 other_host2_var=other_host2_var_value
host3 ansible_host = 10.0.0.3 other_host1_var=other_host1_var_value
host4 ansible_host = 10.0.0.4 other_host2_var=other_host2_var_value


[group1]
host1
host2

[group2]
host3
host4



[group1:vars]
group1_var1 = group1_var1_value
group1_var2 = group1_var2_value



[other_group:children]
group1
group2

You can use it with local_file to write it to you working directory and use later with Ansible:

resource "local_file" "ansible-inventory" {
  filename = "inventory.ini"
  content  = module.ansible-inventory.result
}