terraform-provider-utils

A Terraform plugin to allow you to do custom templating (using the Go text/template library in Terraform.

We add a few simple functions to the defaults:

• add $variable count - Adds the count to the variable when executed
• split .argument "X" - Takes the argument and splits it by the second parameter

Example:

resource "utils_template" "zk_discovery_yaml" {
    template = <<EOT
---
zookeeper_servers:
{{range $index, $ip := split .ips ","}}  {{add $index 1}}: {{$ip}}
{{end}}
EOT
    vars {
        ips = "${join(",", aws_instance.zk.*.private_ip)}"
    }
}

and then elsewhere:

"${utils_template.zk_discovery_yaml.out}"

Resources

utils_template

Inputs:

• template - The template text.
• vars {} - Variables to pass to the template itself

Outputs:

• out - The rendered template output

Further uses

Combining this provider with terraform-provider-gitfile allows terraform to commit the file you've templated to git - which can be useful for generating YAML or INI type config files for consumption by other systems (for example puppet).

License

Apache2 - See the included LICENSE file for more details.