feat: allow configuration of the root volume. (#9)

Author: benoit-garcia

README.md

@@ -47,18 +47,19 @@ module "my_instance" {
 
 | Name | Description | Type | Default | Required |
 |------|-------------|------|---------|:--------:|
-| <a name="input_image"></a> [image](#input_image) | UUID or the label of the base image used by the server. | `string` | n/a | yes |
 | <a name="input_additional_volume_ids"></a> [additional_volume_ids](#input_additional_volume_ids) | Additional volumes attached to the server. Updates to this field will trigger a stop/start of the server. | `list(string)` | `[]` | no |
 | <a name="input_boot_type"></a> [boot_type](#input_boot_type) | The boot Type of the server. Default to 'local'. Possible values are: 'local', 'bootscript' or 'rescue'. | `string` | `"local"` | no |
 | <a name="input_bootscript_id"></a> [bootscript_id](#input_bootscript_id) | ID of the bootscript to use (set boot_type to bootscript). | `string` | `null` | no |
 | <a name="input_domainname"></a> [domainname](#input_domainname) | Domain name of the instance. If set, instance IPs will be registered in the matching DNS zone. | `string` | `null` | no |
 | <a name="input_enable_ipv6"></a> [enable_ipv6](#input_enable_ipv6) | Determines if IPv6 is enabled for the server. | `bool` | `false` | no |
 | <a name="input_enable_public_ipv4"></a> [enable_public_ipv4](#input_enable_public_ipv4) | Determines if a public IPv4 will be attached to the server. | `bool` | `false` | no |
 | <a name="input_hostname"></a> [hostname](#input_hostname) | Name of the instance. If not set, it will be randomly generated by Scaleway. | `string` | `null` | no |
+| <a name="input_image"></a> [image](#input_image) | UUID or the label of the base image used by the server. Must be null if `root_volume.volume_id` is used. | `string` | `null` | no |
 | <a name="input_instance_type"></a> [instance_type](#input_instance_type) | Commercial type of the server. Default to 'DEV1-S'. Updates to this field will recreate a new resource. | `string` | `"DEV1-S"` | no |
 | <a name="input_placement_group_id"></a> [placement_group_id](#input_placement_group_id) | ID of the placement group the server is attached to. | `string` | `null` | no |
 | <a name="input_private_networks"></a> [private_networks](#input_private_networks) | Private networks associated with the server. | `list(string)` | `[]` | no |
 | <a name="input_project_id"></a> [project_id](#input_project_id) | ID of the project the namespace is associated with. Ressource will be created in the project set at the provider level if null. | `string` | `null` | no |
+| <a name="input_root_volume"></a> [root_volume](#input_root_volume) | Root volume attached to the server on creation. Updates to `root_volume.size_in_gb` will be ignored after the creation of the server. | ```object({ delete_on_termination = bool size_in_gb = number volume_id = optional(string) volume_type = optional(string) })``` | `null` | no |
 | <a name="input_security_group_id"></a> [security_group_id](#input_security_group_id) | ID of the security group the server is attached to. | `string` | `null` | no |
 | <a name="input_state"></a> [state](#input_state) | State of the server. Default to 'started'. Possible values are: 'started', 'stopped' or 'standby'. | `string` | `"started"` | no |
 | <a name="input_tags"></a> [tags](#input_tags) | Tags associated with the server and dedicated ip address. | `list(any)` | `[]` | no |

main.tf

@@ -38,7 +38,16 @@ resource "scaleway_instance_server" "this" {
   tags               = var.tags
 
   additional_volume_ids = var.additional_volume_ids
-  # root_volume           = var.root_volume
+
+  dynamic "root_volume" {
+    for_each = var.root_volume != null ? [1] : []
+    content {
+      delete_on_termination = var.root_volume["delete_on_termination"]
+      size_in_gb            = var.root_volume["size_in_gb"]
+      volume_id             = var.root_volume["volume_id"]
+      volume_type           = var.root_volume["volume_type"]
+    }
+  }
 
   enable_dynamic_ip = var.enable_public_ipv4
   enable_ipv6       = var.enable_ipv6

variables.tf

@@ -1,6 +1,7 @@
 variable "image" {
   type        = string
-  description = "UUID or the label of the base image used by the server."
+  description = "UUID or the label of the base image used by the server. Must be null if `root_volume.volume_id` is used."
+  default     = null
 }
 
 variable "instance_type" {
@@ -47,10 +48,16 @@ variable "additional_volume_ids" {
   default     = []
 }
 
-# variable "root_volume" {
-#   type    = any
-#   default = null
-# }
+variable "root_volume" {
+  description = "Root volume attached to the server on creation. Updates to `root_volume.size_in_gb` will be ignored after the creation of the server."
+  type = object({
+    delete_on_termination = bool
+    size_in_gb            = number
+    volume_id             = optional(string)
+    volume_type           = optional(string)
+  })
+  default = null
+}
 
 # Network