add diskSize to instance resource (#69)

Author: philipkrueck

docs/index.md

@@ -114,6 +114,8 @@ resource "genesiscloud_instance" "instance" {
 
   floating_ip_id = genesiscloud_floating_ip.floating_ip.id
 
+  disk_size = 128
+
   metadata = {
     startup_script = <<EOF
 #!/bin/bash

docs/resources/instance.md

@@ -42,6 +42,7 @@ resource "genesiscloud_instance" "example" {
 
 ### Optional
 
+- `disk_size` (Number) The disk size of the instance in GB.
 - `floating_ip_id` (String) The floating IP attached to the instance.
 - `hostname` (String) The hostname of your instance. If not provided will be initially set to the `name` attribute.
   - If the value of this attribute is configured and changes, Terraform will destroy and recreate the resource.

examples/provider/provider.tf

@@ -90,6 +90,8 @@ resource "genesiscloud_instance" "instance" {
 
   floating_ip_id = genesiscloud_floating_ip.floating_ip.id
 
+  disk_size = 128
+
   metadata = {
     startup_script = <<EOF
 #!/bin/bash

go.mod

@@ -1,9 +1,11 @@
 module github.com/genesiscloud/terraform-provider-genesiscloud
 
-go 1.20
+go 1.21
+
+toolchain go1.22.1
 
 require (
-	github.com/genesiscloud/genesiscloud-go v1.0.6
+	github.com/genesiscloud/genesiscloud-go v1.0.7
 	github.com/hashicorp/go-retryablehttp v0.7.5
 	github.com/hashicorp/terraform-plugin-docs v0.18.0
 	github.com/hashicorp/terraform-plugin-framework v1.7.0

go.sum

@@ -39,6 +39,10 @@ github.com/fatih/color v1.16.0/go.mod h1:fL2Sau1YI5c0pdGEVCbKQbLXB6edEj1ZgiY4Nij
 github.com/frankban/quicktest v1.14.3 h1:FJKSZTDHjyhriyC81FLQ0LY93eSai0ZyR/ZIkd3ZUKE=
 github.com/genesiscloud/genesiscloud-go v1.0.6 h1:31c6gltkSLB/dflEv/KUEq3q2RSLS7CiptmdfOCpxRk=
 github.com/genesiscloud/genesiscloud-go v1.0.6/go.mod h1:OAMjSCejQTC4BBLWXleegT/fg+X46SZ6t/vW9RPtXWg=
+github.com/genesiscloud/genesiscloud-go v1.0.7-0.20240326133630-6d0921ca102e h1:GYona7mTHrCxH2fKEkhNFf1otpsw/r+lUwXP9u0dmQc=
+github.com/genesiscloud/genesiscloud-go v1.0.7-0.20240326133630-6d0921ca102e/go.mod h1:OAMjSCejQTC4BBLWXleegT/fg+X46SZ6t/vW9RPtXWg=
+github.com/genesiscloud/genesiscloud-go v1.0.7 h1:bew0WlAeZjxJeQ8fGDsk9KVtI2yoPwiBe5PRzMY1Zdw=
+github.com/genesiscloud/genesiscloud-go v1.0.7/go.mod h1:OAMjSCejQTC4BBLWXleegT/fg+X46SZ6t/vW9RPtXWg=
 github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 h1:+zs/tPmkDkHx3U66DAb0lQFJrpS6731Oaa12ikc+DiI=
 github.com/go-git/go-billy/v5 v5.5.0 h1:yEY4yhzCDuMGSv83oGxiBotRzhwhNr8VZyphhiu+mTU=
 github.com/go-git/go-git/v5 v5.11.0 h1:XIZc1p+8YzypNr34itUfSvYJcv+eYdTnTvOZ2vD3cA4=

internal/provider/instance_resource.go

@@ -79,6 +79,11 @@ func (r *InstanceResource) Schema(ctx context.Context, req resource.SchemaReques
 					stringplanmodifier.RequiresReplace(),
 				},
 			}),
+			"disk_size": resourceenhancer.Attribute(ctx, schema.Int64Attribute{
+				MarkdownDescription: "The disk size of the instance in GB.",
+				Optional:            true,
+				Computed:            true,
+			}),
 			"image_id": resourceenhancer.Attribute(ctx, schema.StringAttribute{
 				MarkdownDescription: "The resulting image ID of the instance.",
 				Computed:            true,
@@ -263,6 +268,11 @@ func (r *InstanceResource) Create(ctx context.Context, req resource.CreateReques
 		}
 	}
 
+	if !data.DiskSize.IsNull() {
+		diskSize := pointer(int(data.DiskSize.ValueInt64()))
+		body.DiskSize = diskSize
+	}
+
 	if !data.Password.IsNull() && !data.Password.IsUnknown() {
 		body.Password = pointer(data.Password.ValueString())
 	}
@@ -443,6 +453,11 @@ func (r *InstanceResource) Update(ctx context.Context, req resource.UpdateReques
 		body.Volumes = &volumeIds
 	}
 
+	if !data.DiskSize.IsNull() {
+		diskSize := pointer(int(data.DiskSize.ValueInt64()))
+		body.DiskSize = diskSize
+	}
+
 	instanceId := data.Id.ValueString()
 
 	response, err := r.client.UpdateInstanceWithResponse(ctx, instanceId, body)

internal/provider/instance_types.go

@@ -35,6 +35,9 @@ type InstanceResourceModel struct {
 	// Metadata Option to provide metadata. Currently supported is `startup_script`.
 	Metadata *InstanceMetadataModel `tfsdk:"metadata"`
 
+	// DiskSize The disk size of the instance in GiB.
+	DiskSize types.Int64 `tfsdk:"disk_size"`
+
 	// Name The human-readable name for the instance.
 	Name types.String `tfsdk:"name"`
 
@@ -130,6 +133,10 @@ func (data *InstanceResourceModel) PopulateFromClientResponse(ctx context.Contex
 		data.FloatingIpId = types.StringValue(instance.FloatingIp.Id)
 	}
 
+	if instance.DiskSize != nil {
+		data.DiskSize = types.Int64Value(int64(*instance.DiskSize))
+	}
+
 	data.Region = types.StringValue(string(instance.Region))
 	data.Status = types.StringValue(string(instance.Status))
 	data.CreatedAt = types.StringValue(instance.CreatedAt.Format(time.RFC3339))