K8s Helm Install

This Terraform module installs Helm on a K8s cluster.

• Usage
• Variables
• Dependencies
• Links

Usage

module "helm" {
  source     = "git@github.com:dansible/terraform-null-helm-install.git?ref=v0.0.2"
  kubeconfig  = "${module.k8s.kubeconfig}"  # This is assumed to be the output of the GKE module but can be any Kubeconfig
  enabled    = true
  depends_on = "${module.pre-install}" # This can be any TF resource
}

Variables

For more info, please see the variables file.

Variable	Description	Default
kubeconfig	Kubeconfig for cluster in which Helm will be installed.	(Required)
name	Temporary name to assign to kubeconfig.	tmp
tiller_version	Version of Tiller component. Must match the Helm cli on the machine executing Terraform.	v2.12.3
enabled	Whether to enable this module. Set to false to properly uninstall Helm.	true

Dependencies

This module exposes two variables to work around the limitations of modules in Terraform.

Name	Type	Description
depends_on	list variable	Dummy variable to enable module dependencies.
dependency	list output	Dummy output to enable module dependencies.

Using these two, you can emulate the functionality of depends_on by chaining one module's output to another's depends_on input.

Links

• hashicorp/terraform#15933
• https://www.terraform.io/docs/providers/template/
• https://www.terraform.io/docs/configuration/interpolation.html#templates