Add regions data source

docs/data-sources/regions.md

@@ -0,0 +1,30 @@
+---
+# generated by https://github.com/hashicorp/terraform-plugin-docs
+page_title: "temporalcloud_regions Data Source - terraform-provider-temporalcloud"
+subcategory: ""
+description: |-
+  
+---
+
+# temporalcloud_regions (Data Source)
+
+
+
+
+
+<!-- schema generated by tfplugindocs -->
+## Schema
+
+### Read-Only
+
+- `regions` (Attributes List) (see [below for nested schema](#nestedatt--regions))
+
+<a id="nestedatt--regions"></a>
+### Nested Schema for `regions`
+
+Read-Only:
+
+- `cloud_provider` (String)
+- `cloud_provider_region` (String)
+- `id` (String)
+- `location` (String)

docs/resources/namespace.md

@@ -28,7 +28,7 @@ description: |-
 
 ### Read-Only
 
-- `namespace` (String)
+- `id` (String) The ID of this resource.
 - `resource_version` (String)
 
 <a id="nestedblock--timeouts"></a>

examples/data-sources/regions/regions.tf

@@ -0,0 +1,9 @@
+provider "temporalcloud" {
+
+}
+
+data "temporalcloud_regions" "regions" {}
+
+output "regions" {
+  value = data.temporalcloud_regions.regions.regions
+}

go.mod

@@ -3,7 +3,6 @@ module github.com/temporalio/terraform-provider-temporalcloud
 go 1.19
 
 require (
-	github.com/hashicorp/go-uuid v1.0.3
 	github.com/hashicorp/terraform-plugin-docs v0.16.0
 	github.com/hashicorp/terraform-plugin-framework v1.3.5
 	github.com/hashicorp/terraform-plugin-framework-timeouts v0.4.1
@@ -36,6 +35,7 @@ require (
 	github.com/hashicorp/go-hclog v1.5.0 // indirect
 	github.com/hashicorp/go-multierror v1.1.1 // indirect
 	github.com/hashicorp/go-plugin v1.4.10 // indirect
+	github.com/hashicorp/go-uuid v1.0.3 // indirect
 	github.com/hashicorp/go-version v1.6.0 // indirect
 	github.com/hashicorp/hc-install v0.5.2 // indirect
 	github.com/hashicorp/hcl/v2 v2.17.0 // indirect

internal/provider/provider.go

@@ -120,7 +120,9 @@ func (p *TerraformCloudProvider) Resources(ctx context.Context) []func() resourc
 }
 
 func (p *TerraformCloudProvider) DataSources(ctx context.Context) []func() datasource.DataSource {
-	return []func() datasource.DataSource{}
+	return []func() datasource.DataSource{
+		NewRegionsDataSource,
+	}
 }
 
 func New(version string) func() provider.Provider {

internal/provider/regions_datasource.go

@@ -0,0 +1,122 @@
+package provider
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/hashicorp/terraform-plugin-framework/datasource"
+	"github.com/hashicorp/terraform-plugin-framework/datasource/schema"
+	"github.com/hashicorp/terraform-plugin-framework/types"
+	cloudservicev1 "github.com/temporalio/terraform-provider-temporalcloud/proto/go/temporal/api/cloud/cloudservice/v1"
+)
+
+var (
+	_ datasource.DataSource              = &regionsDataSource{}
+	_ datasource.DataSourceWithConfigure = &regionsDataSource{}
+)
+
+// NewCoffeesDataSource is a helper function to simplify the provider implementation.
+func NewRegionsDataSource() datasource.DataSource {
+	return &regionsDataSource{}
+}
+
+type (
+	regionsDataSource struct {
+		client cloudservicev1.CloudServiceClient
+	}
+
+	regionsDataModel struct {
+		// https://developer.hashicorp.com/terraform/plugin/framework/acctests#no-id-found-in-attributes
+		ID      types.String      `tfsdk:"id"`
+		Regions []regionDataModel `tfsdk:"regions"`
+	}
+
+	regionDataModel struct {
+		ID                  types.String `tfsdk:"id"`
+		CloudProvider       types.String `tfsdk:"cloud_provider"`
+		CloudProviderRegion types.String `tfsdk:"cloud_provider_region"`
+		Location            types.String `tfsdk:"location"`
+	}
+)
+
+// Configure adds the provider configured client to the data source.
+func (d *regionsDataSource) Configure(_ context.Context, req datasource.ConfigureRequest, resp *datasource.ConfigureResponse) {
+	if req.ProviderData == nil {
+		return
+	}
+
+	client, ok := req.ProviderData.(cloudservicev1.CloudServiceClient)
+	if !ok {
+		resp.Diagnostics.AddError(
+			"Unexpected Data Source Configure Type",
+			fmt.Sprintf("Expected cloudservicev1.CloudServiceClient, got: %T. Please report this issue to the provider developers.", req.ProviderData),
+		)
+
+		return
+	}
+
+	d.client = client
+}
+
+// Metadata returns the data source type name.
+func (d *regionsDataSource) Metadata(_ context.Context, req datasource.MetadataRequest, resp *datasource.MetadataResponse) {
+	resp.TypeName = req.ProviderTypeName + "_regions"
+}
+
+// Schema defines the schema for the data source.
+func (d *regionsDataSource) Schema(_ context.Context, _ datasource.SchemaRequest, resp *datasource.SchemaResponse) {
+	resp.Schema = schema.Schema{
+		Attributes: map[string]schema.Attribute{
+			"id": schema.StringAttribute{
+				Computed: true,
+			},
+			"regions": schema.ListNestedAttribute{
+				Computed: true,
+				NestedObject: schema.NestedAttributeObject{
+					Attributes: map[string]schema.Attribute{
+						"id": schema.StringAttribute{
+							Computed: true,
+						},
+						"cloud_provider": schema.StringAttribute{
+							Computed: true,
+						},
+						"cloud_provider_region": schema.StringAttribute{
+							Computed: true,
+						},
+						"location": schema.StringAttribute{
+							Computed: true,
+						},
+					},
+				},
+			},
+		},
+	}
+}
+
+// Read refreshes the Terraform state with the latest data.
+func (d *regionsDataSource) Read(ctx context.Context, req datasource.ReadRequest, resp *datasource.ReadResponse) {
+	var state regionsDataModel
+
+	regions, err := d.client.GetRegions(ctx, &cloudservicev1.GetRegionsRequest{})
+	if err != nil {
+		resp.Diagnostics.AddError("Unable to fetch regions", err.Error())
+		return
+	}
+
+	for _, region := range regions.GetRegions() {
+		regionModel := regionDataModel{
+			ID:                  types.StringValue(region.GetId()),
+			CloudProvider:       types.StringValue(region.GetCloudProvider()),
+			CloudProviderRegion: types.StringValue(region.GetCloudProviderRegion()),
+			Location:            types.StringValue(region.GetLocation()),
+		}
+
+		state.Regions = append(state.Regions, regionModel)
+	}
+
+	// Silly, but temporarily necessary:
+	// https://developer.hashicorp.com/terraform/plugin/framework/acctests#no-id-found-in-attributes
+	state.ID = types.StringValue("terraform")
+	diags := resp.State.Set(ctx, &state)
+	resp.Diagnostics.Append(diags...)
+}

internal/provider/regions_datasource_test.go

@@ -0,0 +1,29 @@
+package provider
+
+import (
+	"testing"
+
+	"github.com/hashicorp/terraform-plugin-testing/helper/resource"
+)
+
+func TestAccRegion(t *testing.T) {
+	resource.Test(t, resource.TestCase{
+		PreCheck:                 func() { testAccPreCheck(t) },
+		ProtoV6ProviderFactories: testAccProtoV6ProviderFactories,
+		Steps: []resource.TestStep{
+			{
+				Config: testAccRegionConfig(),
+			},
+		},
+	})
+}
+
+func testAccRegionConfig() string {
+	return `
+provider "temporalcloud" {
+
+}
+
+data "temporalcloud_regions" "test" {}
+`
+}