Make storage backend configurable

Closes #3

CHANGELOG.md

@@ -5,6 +5,19 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [3.2.0] - 2019-09-17
+
+Thanks again to [Steven Miller](https://github.com/sjmiller609) who provided input
+for the configurable storage backend configuration.
+
+### Added
+
+- The storage backend has been made configurable.
+
+### Updated
+
+- Default tiller version has been updated to v2.14.3
+
 ## [3.1.0] - 2019-07-28
 
 ### Added

VERSION.txt

@@ -1 +1 @@
-3.1.0
+3.2.0

main.tf

@@ -135,6 +135,11 @@ resource "kubernetes_deployment" "this" {
             value = var.tiller_history_max
           }
 
+          env {
+            name = "TILLER_STORAGE"
+            value = var.tiller_storage
+          }
+
           env {
             name  = "TILLER_TLS_ENABLE"
             value = var.tiller_tls.enabled ? "1" : ""

variables.tf

@@ -1,6 +1,6 @@
 variable "tiller_version" {
   type        = string
-  default     = "2.14.2"
+  default     = "2.14.3"
   description = "Version of Tiller to be deployed."
 }
 
@@ -34,6 +34,18 @@ variable "tiller_service_session_affinity" {
   description = "Session affinity of the Tiller service."
 }
 
+variable "tiller_sql_connection_string" {
+  type = string
+  default = ""
+  description = "SQL connection string to use (only used if 'tiller_storage' is set to 'sql')."
+}
+
+variable "tiller_sql_dialect" {
+  type = string
+  default = "postgres"
+  description = "SQL dialect to use."
+}
+
 variable "tiller_image_pull_policy" {
   type        = string
   default     = "IfNotPresent"
@@ -46,6 +58,13 @@ variable "tiller_pod_node_selector" {
   description = "Node selector to be applied to the tiller pod."
 }
 
+variable "tiller_storage" {
+  type = string
+  default = "configmap"
+  description = "Storage driver to use. One of 'configmap', 'memory', 'sql' or 'secret'."
+}
+
+
 variable "tiller_tls" {
   type = object({
     enabled         = bool