From 841277e168a9eee024711432301932db99df861b Mon Sep 17 00:00:00 2001
From: Thomas Faust <mail@thomas-hesse.eu>
Date: Sun, 11 Aug 2024 21:36:39 +0200
Subject: [PATCH] feat(treafik): add volume driver and driver options to config
 volume and volume mounts

---
 modules/traefik/README.md    |  1 +
 modules/traefik/main.tf      | 33 +++++++++++++++------------------
 modules/traefik/variables.tf |  9 +++++++++
 3 files changed, 25 insertions(+), 18 deletions(-)

diff --git a/modules/traefik/README.md b/modules/traefik/README.md
index 2172fe0..5887ff0 100644
--- a/modules/traefik/README.md
+++ b/modules/traefik/README.md
@@ -49,6 +49,7 @@ No resources.
 | <a name="input_secrets"></a> [secrets](#input\_secrets) | (Optional) The secrets to create with and add to the docker container. Creates docker secrets from non-terraform-resources. | <pre>set(object({<br>    file_name = string<br>    # secret_id   = string # secret will be created and we take that resource id<br>    file_gid    = optional(string, "0")<br>    file_mode   = optional(number, 0444)<br>    file_uid    = optional(string, "0")<br>    secret_name = optional(string, null)<br>    secret_data = string<br>  }))</pre> | `[]` | no |
 | <a name="input_traefik_certificate"></a> [traefik\_certificate](#input\_traefik\_certificate) | Configuration settings for a Docker volume used by Traefik to manage SSL certificates. The 'driver' field allows for driver-specific options in a map format. The 'source' field specifies the path or identifier of the volume source. The 'target' field defines the destination path within the container, defaulting to '/etc/certificates'. The 'type' field indicates the mount type, with 'bind' as the default. | <pre>object({<br>    # check https://docs.docker.com/engine/extend/legacy_plugins/#volume-plugins<br>    driver_name    = optional(string, "local"),<br>    driver_options = optional(map(string), {})<br>    source         = optional(string),<br>    target         = optional(string, "/etc/certificates")<br>    type           = optional(string, "bind")<br>  })</pre> | n/a | yes |
 | <a name="input_traefik_config"></a> [traefik\_config](#input\_traefik\_config) | The static config file for traefik. Config can be passed via tftpl or inline string. | `string` | `null` | no |
+| <a name="input_traefik_volume_options"></a> [traefik\_volume\_options](#input\_traefik\_volume\_options) | The traefik volume driver with its options. | <pre>object({<br>    driver         = optional(string, "local")<br>    driver_options = optional(map(string), {})<br>  })</pre> | `{}` | no |
 
 ## Outputs
 
diff --git a/modules/traefik/main.tf b/modules/traefik/main.tf
index 69815b5..3f33308 100644
--- a/modules/traefik/main.tf
+++ b/modules/traefik/main.tf
@@ -22,26 +22,21 @@ locals {
       read_only     = false
       tmpfs_options = {}
       volume_options = {
-        driver_name    = var.traefik_certificate.driver_name
-        driver_options = var.traefik_certificate.driver_options
+        driver_name    = coalesce(var.traefik_certificate.driver_name, var.traefik_volume_options.driver)
+        driver_options = coalesce(var.traefik_certificate.driver_options, var.traefik_volume_options.driver_options)
       }
     },
     {
-      target         = "/etc/traefik"
-      source         = module.traefik_docker_volume.this.name
-      type           = "volume"
-      read_only      = false
-      tmpfs_options  = {}
-      volume_options = {}
+      target        = "/etc/traefik"
+      source        = module.traefik_docker_volume.this.name
+      type          = "volume"
+      read_only     = false
+      tmpfs_options = {}
+      volume_options = {
+        driver_name    = var.traefik_volume_options.driver
+        driver_options = var.traefik_volume_options.driver_options
+      }
     }
-    # {
-    #   target = "/etc/certificates"
-    #   source = local.certificate.source
-    #   type   = local.certificate.type
-    #   volume_options = {
-    #     driver_options = var.certificate.driver
-    #   }
-    # }
     ],
     tolist(var.mounts)
   )
@@ -79,8 +74,10 @@ locals {
 module "traefik_docker_volume" {
   source = "github.com/ehwplus/terraswarm//modules/base_docker_volume?ref=main"
 
-  name      = local.name
-  namespace = local.namespace
+  name           = local.name
+  namespace      = local.namespace
+  driver         = var.traefik_volume_options.driver
+  driver_options = var.traefik_volume_options.driver_options
 }
 
 module "traefik_docker_service" {
diff --git a/modules/traefik/variables.tf b/modules/traefik/variables.tf
index adaf01e..c7a845b 100644
--- a/modules/traefik/variables.tf
+++ b/modules/traefik/variables.tf
@@ -337,6 +337,15 @@ variable "healthcheck" {
 # Traefik
 ################################################################################
 
+variable "traefik_volume_options" {
+  type = object({
+    driver         = optional(string, "local")
+    driver_options = optional(map(string), {})
+  })
+  description = "The traefik volume driver with its options."
+  default     = {}
+}
+
 variable "traefik_config" {
   type        = string
   description = "The static config file for traefik. Config can be passed via tftpl or inline string."